Wi Lan EB03 DSSS data Transceiver for LAN or WAN User Manual 120 24

Wi Lan Inc DSSS data Transceiver for LAN or WAN 120 24

Users Manual

AWE 120-24Advanced WirelessEthernet Bridge Rev 2 Installation &Configuration GuideJUL 2001 Rev 3
JUL 2001 Rev 03 i Contents Important Information .................................................................... vii Safety Considerations ......................................................................................................................viiWarning Symbols Used in this Book ...........................................................................................vii Notices ................................................................................................ix Copyright Notice ..............................................................................................................................ixRegulatory Notice .............................................................................................................................ixOther Notices .....................................................................................................................................xWarranty & Repair .............................................................................................................................xCustomer Support Contacts ...........................................................................................................xDistributor Technical Support .......................................................................................................xiWi-LAN Product Information ........................................................................................................xiPublication History ............................................................................................................................xi Description ..........................................................................................1 Features ................................................................................................................................................1About Spread Spectrum ....................................................................................................................1 About AWE Units 2 Some System Applications ................................................................................................................3 Making a Simple Wireless Bridge 3Creating a Simple Wireless Network 3Creating a Network with Cells 5Using a Repeater Base 6Building a WAN 6 AWE 120-24 Unit ...............................................................................................................................7AWE 120–24 Specifications .............................................................................................................9 Installation .........................................................................................11 Overview ........................................................................................................................................... 11 Shipping Package Contents 12
ii AWE 120-24 Installation & Configuration Guide Tools and Equipment 12 1 Obtain Network Plan ..................................................................................................................132 Assemble Units ..............................................................................................................................133 Configure Units .............................................................................................................................15 Configuring a Base Station 15How to Use the Main Menu 16Configuring a Remote Unit 18 4 Bench Test Units ...........................................................................................................................20 Establishing a Basic RF Link 20Testing a Basic RF Link 22Performing Simple Network Tests 23 5 Install Units .....................................................................................................................................26 Point-to-Multipoint Installation 27Co-Location Installation 27 6 Test Network ...............................................................................................................................27Adding to a Network ......................................................................................................................27Preventative Maintenanceand Monitoring ..................................................................................................................................28 Configuration .................................................................................... 29 Overview ............................................................................................................................................29 Main Menu 29 Accessing the Main Menu ...............................................................................................................30 Accessing the Main Menu with HyperTerminal® 30Accessing Units via telnet 31Setting VT100 Arrows 31 Configuring with the Main Menu ..................................................................................................32 How to Use the Main Menu 32Accessing Help 32 Unit Identification .............................................................................................................................34 Viewing Unit Identification 34Assigning Unit Identification Information 35 Hardware/Software Revision .........................................................................................................36 Viewing System Revision Information 36 System Software ROM Images ......................................................................................................37 Viewing System Software ROM Images 37 System Current Status ....................................................................................................................38 Viewing System Current Status 38 Network Configuration ..................................................................................................................39 Viewing Internet IP Addresses and Subnet Mask 39Setting the Internet IP Address 40Setting the IP Subnet Mask 40
JUL 2001 Rev 03 iii Setting the Default Gateway IP Address (future) 41Setting the SNMP NMS Trap IP Address (future) 41Setting the MAC Filter Entry Age Time Minutes 41 IP Filter Configuration .................................................................................................................... 42 Viewing IP Filter Configuration 42Enabling IP Packet Filtering 45Enabling IP Address Filtering 45Setting Default IP Address Filtering 45Setting Up IP Address Filter 46 RF Station Configuration ............................................................................................................... 47 Viewing Current RF Station Configuration 47Setting the Operating Mode 49General Equipment Setup for Performing RF Tests 50Setting Test Mode Timer Minutes 51Performing Link Monitor Test (Normal Mode) 52Performing Transmit and Receive Tests 55Performing the RSSI Test 57Setting the RF Transmit Status 58Setting the Link Monitor Period 59Setting Maximum Remote Distance (Base Station Only) 60Setting Link Monitor Remote Station Rank 61Adjusting Throttling (Remote Station Only) 62Setting Tx Power Automatically (Remote Station Only) 63How Automatic Output Power Adjustment Works 63Adjusting User Output Power Ceiling (Remote Station Only) 66Setting Signal Margin (Remote Station Only) 67Viewing Current Output Power Level Adjust 68 Radio Module Configuration ......................................................................................................... 69 Viewing the Radio Module Configuration 69Setting Config Test Minutes 71Setting the Station Type 72Setting the Station Rank 73Setting the Center Frequency 74Setting Security Passwords 75Setting the Scrambling Code 76Setting the Acquisition Code 77Adjusting the Tx Power Level 78Setting a Base to Repeater Mode (Base Station Only) 79Setting System Symmetry Type (Base Station Only) 81Setting Dynamic Polling Level (Base Station Only) 82Setting Remote Unit RF Group 83Rebooting and Saving RF Module Configurations 86 RF/Ethernet Statistics ...................................................................................................................... 88 Viewing RF/Ethernet Statistics 88 System Security ................................................................................................................................ 91 Viewing System Security 91Assigning Community Names 93Setting Menu Passwords 94Allowing Remote Access and Configuration 96Setting the Auto Logout Minutes 97
iv AWE 120-24 Installation & Configuration Guide System Commands ...........................................................................................................................98 Viewing System Command Menu 98Setting Default System Image 99Setting the Reboot System Image 100Rebooting the Current Image 100Restoring Factory Configurations 101Resetting Radio and Ethernet Statistics 102 Link Monitor Display .................................................................................................................... 103 Viewing Link Monitor Statistics 103 Logout .............................................................................................................................................. 104 Logging Out 104 Setting Operating Mode with the Mode Button .................................................................... 104 Selecting RF Tests with the Mode Button 105 Command Line Interface ............................................................................................................. 106 Troubleshooting ............................................................................. 107 Administrative Best Practices ..................................................................................................... 107Troubleshooting Areas ................................................................................................................ 108 Troubleshooting Chart 109 Appendix A: Planning Your Wireless Link .................................. 113 Planning the Physical Layout ....................................................................................................... 113 Determine the Number of Remotes 113Ensure LOS and Determine Coverage Area 113Measure the Distance Between Units 114Determine Shelter, Power and Environmental Requirements 114 Determining Antennaand Cable Requirements ............................................................................................................. 114Determining Unit Configuration Settings ................................................................................ 115Calculating a Link Budget ............................................................................................................. 115 System Gain 116EIRP (Effective Isotropically Radiated Power) 116Antenna Gain 117Propagation Loss 117Fresnel Zone 117Cable Loss 118Path Loss 118Fade Margin 118 Link Budget Example .................................................................................................................... 119Antenna Basics ............................................................................................................................... 120 Antenna Parameters 120Implementation Considerations 121Selecting Antennas 122Wi-LAN’s Antenna Selection 122
JUL 2001 Rev 03 v Antenna Installation Factors 124Minimal Clearance Above Obstructions 125Installing Antennas 125Fine-tuning Antennas 126Co-locating Units 126 Appendix B: Using HyperTerminal ..............................................127 Starting HyperTerminal® ............................................................................................................ 127Determining the Communications Port ................................................................................... 128 Appendix C: Configuring a Simple Data Network ......................129 Checking Network Adaptor Installation .................................................................................. 129Configuring the Network ............................................................................................................ 130Enabling the Sharing Featureon the Hard Disk Drive ............................................................................................................... 133 Appendix D: SNMP ........................................................................135 About SNMP MIB .......................................................................................................................... 135Wi-LAN Object Identifier Nodes .............................................................................................. 136Using SNMP .................................................................................................................................... 136Using Object Identifier Nodes ................................................................................................... 137 Appendix E: Technical Reference Information ...........................149 Front Panel LEDs ........................................................................................................................... 149DC Power Plug Pinout ................................................................................................................. 150 Appendix F: Menu Map ..................................................................151Appendix G: Upgrading Software .................................................153 Obtaining New Software Images ............................................................................................... 153Downloading Image Software ..................................................................................................... 153Activating New Software Images ............................................................................................... 155Removing Old Software Images ................................................................................................. 155 Glossary ...........................................................................................157Index ................................................................................................167
vi AWE 120-24 Installation & Configuration Guide
JUL 2001 Rev 03 vii Important Information Please be aware of the following new features. • Tx power of remote units can be monitored and adjusted automatically using Link Monitor/Output Power: Automatic Power Output or Dynamic Power Output (feature not available with SW revi-sion 0.0.0). • Indoor antennas are not supplied with the shipping contents. To test and configure units you need to purchase a Bench Test Kit (9000-0035). For bench testing, antennas must be separated by at least 2 meters. • IP Filter format has changed. • On-screen Help is available for Main Menu items. • new SNMP nodes have been added to set new features from a remote location. Safety Considerations This documentation must be reviewed for familiarization with the product, instructions, and safety symbols before operation.Verify that a uninteruptable safety earth ground exists from the mainpower source and the product’s ground circuitry. Verify that the correct AC power source is available for the AC adapter to produce 12 Vdc output from the adapter.Disconnect the product from operating power before cleaning. Warning Symbols Used in this Book WARNING: Bodily injury or death may result from failure to heed a WARNING.Do not proceed beyond a WARNING until the indicated conditions are fully understood and met.CAUTION: Damage to equipment may result from failure to heed a caution. Do not proceed beyond a CAUTION until the indicated conditions are fully understood and met.! Important: Indicates important information to be aware of which may affect the completion of a task or successful operation of equipment.!
Important Information viii AWE 120-24 Installation & Configuration Guide WARNINGAll antennas and equipment must be installed by a knowledgeable and professional installer.CAUTIONNever operate a unit without an antenna, dummy load, or terminator connected to the antenna port. Operating a unit without an antenna, dummy load, or terminator connected to the antenna port can permanently damage a unit.! ImportantAntennas must be selected from a list of Wi-LAN approved antennas. See Wi-LAN’s Antenna Selection , page 122 for list.!
JUL 2001 Rev 03 ix Notices Copyright Notice Copyright© 2001 Wi-LAN, Inc.All rights reserved.This guide and the application and hardware described herein are furnished under license and are subject to a confidentiality agreement. The software and hardware can be used only in accordance with the terms and conditions of this agreement.No part of this guide may be reproduced or transmitted in any form or by any means—electronic, mechanical, or otherwise, including photocopying and recording—without the express written permission of Wi-LAN, Inc.While every effort has been made to ensure that the information contained in this guide is correct, Wi-LAN, Inc. does not warrant the information is free of errors or omissions.Information contained in this guide is subject to change without notice. Regulatory Notice The AWE 120-24 product presented in this guide complies with the following regulations and/or regulatory bodies.• RSS-139 of Industry Canada• FCC Part 15• CEPT/ERC Recommendations, ETS 300-328,parts 1 and 2, and EN 60950Operation is subject to the following two conditions.• This device may not cause interference• This device must accept any interference, including interference that may cause undesired operation of the device.This equipment generates, uses, and radiates radio frequency and, if not installed and used in accordance with this guide, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation.
Notices x AWE 120-24 Installation & Configuration Guide If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following methods.• Reorient or relocate the receiving antenna• Increase the separation between the equipment and receiver• Connect equipment to an outlet on a circuit different from that to which the receiver is connected• Consult the dealer or an experienced radio/TV technician for help• Selecting and testing different channels, if employing 2.4 GHz equipmentAs the AWE 120-24 is used on a license-exempt (USA and Europe only), non-frequency coordinated, unprotected spectrum allocation, and thus can be subject to random unidentified interference, applications must not be those of a primary control where a lack of intercommunication could cause danger to property, process, or person. An alternative fail-safe should be designed into any system to ensure safe operation or shut down, should communication be lost for any reason. Other Notices • Changes or modifications to the equipment not expressly approved by Wi-LAN, Inc., could void the user’s authority to operate the equipment.• Appropriately shielded remote I/O serial cable with the metal connector shell and cable shield properly connected to chassis ground shall be used to reduce the radio frequency interference.• Radio frequency exposure limits may be exceeded at distances closer than 20 centimeters from the antenna of this device.• All antenna installation work shall be carried out by a knowledgeable and professional installer.• Use only a power adapter approved by Wi-LAN. Warranty & Repair Please contact the party from whom you purchased the product for warranty and repair information. Wi-LAN provides no direct warranty to end users of this product. Customer Support Contacts Users of Wi-LAN equipment who require technical assistance must contact their reseller or distributor. For information on distributors in your area, please visit www.wi-lan.com/channel.
Distributor Technical Support JUL 2001 Rev 03 xi Distributor Technical Support Distributors may contact Wi-LAN’s Technical Assistance Center (TAC) for technical support on Wi-LAN products. When requesting support, please have the following information available: • Description of the problem • Configuration of the system, including equipment models, versions and serial numbers. • Antenna type and transmission cable lengths • Site information, including possible RF path problems (trees, buildings, other RF equipment in the area) • Configuration of units (base, remote, channels used, etc.) and Link Monitor statisticsContact Wi-LAN’s Technical Assistance Center at the numbers listed below. Wi-LAN Product Information To obtain information regarding Wi-LAN products, contact the Wi-LAN distributor in your region, call1-800-258-6876 to speak with a Wi-LAN sales representative or visit our web site at www.wi-lan.com. Publication History Canada and USA Call toll free: 1-866-702-3375Business hours: 7:30 a.m. to 4:30 p.m. Mountain Standard Time (GMT-7:00)International Call: 1-403-204-2767Business hours: 7:30 a.m. to 4:30 p.m. Mountain Standard Time (GMT-7:00)All locations Send an e-mail message to: techsupport@wi-lan.com Revision Date Description Rev 1 SEP 2000 Initial release of manual.Rev 2 DEC 2000 Major stuctural, text formatting, and software changes to manual.Rev 3 JUL 2001 Product name change to AWE, Rev 2 version of manual, added features.
Notices xii AWE 120-24 Installation & Configuration Guide
JUL 2001 Rev 03 1 Description Features The AWE 120-24 is a wireless Ethernet bridge that provides high-speed, wireless connectivity at a fraction of the cost of wired solutions. It operates over the 2.4 – 2.48350 GHz ISM radio band and has a maximum raw wireless data rate of 12.0 Mbps.• Provides wireless connectivity at speeds up to eight times faster than regular T1 lines, making the AWE 120-24 ideal for providing high-speed Internet access or for wirelessly extending existing communications infrastructures.• Supports point-to-point, point-to-multipoint, and multipoint-to-multipoint networks. Contentionless polling ensures efficient access to remote data networks.• Is self-contained and easy to use. Simply connect a AWE 120-24 to each LAN segment, and the unit automatically learns where nodes are located on the network and performs dynamic packet filtering to ensure the local LAN traffic does not overload the wireless connection.• Uses Wi-LAN's patented Multi-Code Direct Sequence Spread Spectrum (MC-DSSS) technology, which makes the unit spectrally efficient and resistant to interference.MC-DSSS technology increases data throughput by as much as ten times compared to traditional spread spectrum technology.• Other features include automatic Tx power level adjustment, IP address filtering, throughput throttling and monitoring, high security and reliability, and a flash-code upgrade path. SNMP, Telnet and RS-232 management enable users to manage, configure and monitor their wireless network with ease. About Spread Spectrum The FCC allocates three frequency bands (called the ISM bands) to a radio technique known as spread spectrum communication. The bands are located at 900MHz, 2.4 GHz, and 5.7 GHz (shown in the following illustration). The AWE 120-24 operates with spread spectrum technology over the 2.4 – 2.4835 GHz band.
Description 2 AWE 120-24 Installation & Configuration Guide License-Free ISM Bands Direct Sequence Spread Spectrum (DSSS) technology converts a data stream into packets and spreads the packets across a broad portion of the RF band. The particular spread pattern depends upon a code. With multi-code DSSS (MC-DSSS), multiple codes and spread patterns are employed. A spread spectrum receiver reconstructs the signal and interprets the data. Some advantages of DSSS are as follows.• Fast throughput: A wide bandwidth means fast data throughput.• Resistant to interference: DSSS overcomes medium levels of interference and multipath problems.• Security: There must be a decoder at the receiving end to recover data (a AWE can only talk to another AWE). Data is transmitted at irregular time intervals. Upon request, Wi-LAN can assign a customer a data packet security code so that a customer can only receive transmissions from another AWE with the same code.• Low probability of detection: Due to a low amplitude signal and wide bandwidth.• No license fee: A license fee is not required if used in the specified radio bands, transmitter power is limited, and a non-standard antenna connector is used. About AWE Units AWE units can function as base stations, remote units or repeater bases. Base Station: At least one unit in your wireless network must be a base station. A base station acts as the central control unit of the wireless network. The base station polls all remote units and controls how traffic is routed to and from remotes. The base usually connects to a major access point of the wired network. The antenna of the base station must be capable of transmitting and receiving radio signals to and from all the remote units in a system. If remotes are spread over a large area, an omni-directional antenna is usually required. See Configuring a Base Station , page 15 for information about setting up a base station.900 MHz 2.4 GHz5.8 GHz26 MHz Wide83.5 MHz Wide125 MHz WideNorth AmericaWorldwideWorldwide902 MHz 928 MHz2.4 GHz 2.4835 GHz5.725 GHz 5.85 GHz
Some System ApplicationsJUL 2001 Rev 03 3Remote Units: Remote units receive and transmit wireless data to the base station. You need at least one remote unit for each wireless link. Remotes can limit the amount of data passed by the remote (a function called throttling), and they can filter data packets based on their IP address. Because remote units communicate only with the base station, their antennas can be more directional and have higher gains than base antennas. See Configuring a Remote Unit, page 18 for information about setting up a remote unit.Repeater Base: A base station can be configured as a repeater base. A repeater is needed when remote units cannot communicate directly with each other, but direct transfers of data between them are necessary (as in a true WAN). When configured as a repeater, the base station passes data packets between remote stations based on the remote group status and a list of MAC (Media Access Control) addresses that the base station automatically builds. The repeater uses a method called "store and forward" to receive data from the orignating remote and to pass data to the destination remote. See Setting a Base to Repeater Mode (Base Station Only), page 79 for more information.Some System ApplicationsYou can build a wireless network from AWE units and various other components such as cables and antennas. The following section shows some simple examples of AWE applications.Making a Simple Wireless BridgeThe simplest example of using a AWE 120-24 is a point-to-point wireless bridge that connects two wired network segments or LANs. Two AWE units are required: a base station and a remote unit.Point-to-Point Wireless BridgeCreating a Simple Wireless NetworkYou can create a point-to-multipoint wireless network by adding several remote units to a base station. A base station can support up to 1000 remotes, however, Wi-LAN recommends no more than 225 remotes per base station to esnure high levels of data throughput. See Determine the Number of Remotes, page 113 for more information.BaseWired NetworkRemoteRouterMain Wired NetworkRouterHubSwitchFirewallSwitchHubFirewallWireless Link
Description4 AWE 120-24 Installation & Configuration GuidePoint-to-Multipoint Wireless NetworkDirect remote-to-remote communication can occur if a direct RF link can be established between remotes, and if remotes are in the same RF group.Remote-to-Remote CommunicationBaseRemoteRouterRemoteRouterWired NetworkWired NetworkWired NetworkRemoteRouterMain Wired NetworkRouterHubSwitchHubSwitchFirewallFirewallSwitchHubFirewallSwitchHubFirewall Wireless LinksBase station pollsRemote UnitsBaseRemoteRemoteRemoteMain Wired NetworkRemotes must be in the sameRF group to communicatedirectlyWireless Links
Some System ApplicationsJUL 2001 Rev 03 5Creating a Network with CellsCells or data nodes can be created with AWE units to maxmimize coverage, minimize interference, and increase data throughput. Directional antennas are mounted on a mast to divide cells into sectors.Each sector is connected to an antenna and a base station. Directional antennas increase signal gain within the sector and increase the distance possible between base stations and remotes. Center frequency, acquisition code and antenna polarization techniques are used to isolate sectors. The increase in data rate depends on the number of sectors. For example, the data rate of Cell 1 in the diagram below is 36 Mbps (12 Mbps x 3 sectors). Cells are distributed across a service area and can be linked to each other via a wireless link or a fiber optic cable.LAN with Cells and SectorsFiber Optiic Cable or Wireless LinkCell 1Cell 2In this example, cells are divided into120 degree sectors.Cells are linked to other cells by a wired or wireless link.RemoteRemoteRemote RemoteRemoteRemoteRemoteRemoteRemoteRemoteBaseStations (3)BaseStations (3)Cell 3RemoteRemoteRemoteRemoteBaseStations (3)InternetFiber Optiic Cable or Wireless LinkRemote
Description6 AWE 120-24 Installation & Configuration GuideUsing a Repeater BaseA base station can function as a repeater to enable wireless data communication around physical obstacles such as tall buildings or mountains. The repeater passes data around the obstacle to any remote in the same RF group. The single unit repeater slows data throughput due to the "store and foreward" process where each packet is handled twice. A dual unit repeater does not slow data throughput.Base Station as a RepeaterBuilding a WANLAN segments can be linked with AWE units to build a WAN (Wide Area Network). Wi-LAN networks are installed in many locations around the world. You can contact Wi-LAN for help designing your network.RemoteWired NetworkWired NetworkRemoteRepeaterWireless LinksWired NetworkRemote123MountainSingle Unit RepeaterDual Unit RepeaterRemoteWired NetworkWired NetworkRemoteWireless LinksWired NetworkRemote123MountainBase BaseEthernet
AWE 120-24 UnitJUL 2001 Rev 03 7AWE 120-24 UnitThe AWE 120-24 has indicator LEDs on the front panel.Front PanelThe front panel connector and LEDs are described below. The color of a LED indicates its status. See Front Panel LEDs, page 149 for detailed informationAir LED Color of LED indicates the transmit/receive status of the wireless link: Red = transmitting data to the airGreen = receiving data from the airOrange = transmitting and receiving approximately equal amounts of data over the airOff = listening to the airMode LED Color of LED indicates the operating mode of a unit:Green = Receive Test modeRed = Transmit Test modeOrange= RSSI Test mode (measures fade margin, which is indicated by LED color)Off = Normal modeWire LED Color of LED indicates the transmit/receive status of the wire link: Green = receiving data from wireRed = transmitting data to wireOrange = transmitting and receiving data on the wireOff = listening to wire or no wire connectedPower LED Green = power is connected to transceiverOff = no power is connected to transceiverAir Mode Wire PowerAir Mode Wire Power
Description8 AWE 120-24 Installation & Configuration GuideConnectors for serial maintenance port, power, antenna and wired network are located on the back panel, as well as a mode button and a link LED.Rear PanelItems located on the back panel are described below.Antenna N-type female connector antenna port is located at the top left of the rear panel. This port should always be connected to an antenna directly or through a 50 ohm coaxial cableSerial Port RS-232, DB9 connector used to communicate with a PC. Use this port to locally configure and test a AWEPower 3-pin power connector. See DC Power Plug Pinout, page 150 for detailed pinout illustrationMode Button Mode button can be used to set the operating mode of a unit without a terminal. See Setting Operating Mode with the Mode Button, page 104 for information about the mode buttonEthernet Standard RJ45 female connector. To connect to a PC Ethernet card, you must use the crossover twisted-pair cable. To connect to a hub, use a straight-through twisted-pair cableLink Color of LED indicates the data rate and status of the twisted-pair connectionGreen = 10BaseT link, functioning properlyOrange = 100BaseT link, functioning properlyOff = No linkAir Vent Air vent for unit’s internal cooling fanModePowerAntennaSerial Port Link EthernetAntenna Serial PortEthernet Mode ButtonPower Link LEDAir VentPort
AWE 120–24 SpecificationsJUL 2001 Rev 03 9AWE 120–24 SpecificationsGeneral SpecificationsModulation Method: Multi-Code Direct Sequence Spread Spectrum (MC-DSSS), time division duplexing (TDD)Wireless Data Rate: 12 Mbps raw data rate/up to 9 Mbps operationalRF Frequency Range: 2.4 - 2.4835 MHz (unlicensed ISM band)Power Requirements: 12Vdc (via 110/240 VAC 50/60 Hz adaptor)30W (2.5A) maximum power consumptionPhysical: Size: 19.3 x 4.4 x 25.5 centimeters(7.6 x 1.75 x 10.0 inches)Weight: TBDRadio SpecificationsAntenna Connector: N-type femaleOutput Power: +20 dBm to –11 dBmReceiver Sensitivity: – 81 dBm (1 x e–6 BER) mid-channelProcessing Gain: >10 dBCenter Frequencies (GHz) 2.4258, 2.4302, 2.4345, 2.4400, 2.4455, 2.4498, 2.4542Channel Width 33 MHzNetwork SupportPacket Format: IEEE 802.3 and Ethernet II(High-level protocol transparent)LAN Connection: 10/100BaseT (autonegotiates)Bridge Functionality: Local Packet Filtering (self-learning)Static IP address filteringDynamic polling of remotesUser configurable data rate (throttling)Software is upgradeable online via ftp
Description10 AWE 120-24 Installation & Configuration GuideWireless Networking ProtocolsNetwork Topologies: Point-to-Point, Point-to-Multipoint, Multipoint-to-MultipointRepeater Mode: User ConfigurablePrivate Network User configurable using repeater and RF GroupRF Collision Management: Dynamic Polling with Dynamic Time AllocationSecurityData Scrambling: User ConfigurableData Security Password: Security password of up to 20 bytes in length(1048 combinations)Configuration, Management, and DiagnosticsConfiguration Methods: SNMP, telnet and RS-232 Serial PortSNMP: Version I compliant (RFC 1157), MIB standard and enterprise (RFC 1213)Management Port Functionality: Supports system configuration, security, access control, wireless LAN diagnostics and management, menu-driven ASCII interface via RS-232 DB-9 connectorEnvironment Units must be operated in a weatherproof environment with an ambient temperature from 0 to 40º Celsius and humidity 0 – 95% non-condensing
JUL 2001 Rev 03 11InstallationOverviewThis section explains how to install AWE units. You will assemble, configure and test units in a controlled environment so that any problems can be solved easily, and then install units in the field. By going through this process, you will help ensure a successful installation, save time spent on-site, and reduce travel between sites.The following basic process should be followed.1. Obtain the network plan, equipment and tools.2. Assemble units —Check the contents of each AWE shipping package to ensure that you have received the required parts. —Connect the indoor antenna, connect the power supply unit, and check the power.3. Configure units—Configure units according to the network plan.4. Bench test units—Test basic RF and network operation of units in a controlled environment.5. Install units—Place the tested units in their field locations and connect them to antennas, the wired network, and DC power.6. Test Network—Test the operation of the installed network.Before you start testing, ensure that you have all the required parts, tools and equipment you will require. ObtainAssembleConfigureInstall1235Network PlanTest 6Bench Test4UnitsUnitsUnitsUnitsNetwork
Installation12 AWE 120-24 Installation & Configuration GuideShipping Package ContentsThe shipping package contains the following items.• AWE unit• Power supply, table top adapter (12 Vdc)• Power supply cord • ferrite block(s)• Installation and Configuration Guide• Warranty CardIf any of the above items are not included in the AWE 120-24 shipping package, contact Wi-LAN customer support.You may also require the following items.• Cable, straight-through ethernet RJ45, when connecting a unit to a hub• Cable, crossover ethernet cable RJ45, when connecting directly to the Ethernet port of a PC• Cable adapter, DB25F to DB9M• RS-232 DB25 serial cableYou can purchase these items and other parts from Wi-LAN or any authorized supplier.Tools and EquipmentEnsure that you have all the required parts and equipment specified in the network plan. You will require a Bench Test Kit (9000-0035) and some tools to install and configure units–in addition to a standard tool kit, you will require a laptop PC with HyperTerminal® or other terminal emulation software and RS-232 cable. You may require a spectrum analyzer, Site Master® communication test set, digital multimeter, 2-way radios, binoculars, strobe lights, ladder, and weatherproof caulking.
1 Obtain Network PlanJUL 2001 Rev 03 131 Obtain Network PlanThe network plan describes the network in detail, including the following. • Type and number of units • Physical layout • Configuration settings for each unit • Site names, IP addresses and links • Antenna types, RF cables and cable lengths, surge suppressors, terminators • Network cable types and lengths • Grounding kits and backup power requirements • Link budget • Floor plans and equipment cabinet requirementsThe network plan should be completed before any equipment is installed in the field. See Appendix A: Planning Your Wireless Link, page 113 for more information about network planning.2 Assemble Units➧ To assemble a unit and check the power1. Connect the indoor antenna to the Antenna port at the back of the unit.Note: Indoor antenna may be different from the illustration. CAUTIONNever operate a unit without an antenna, dummy load, or terminator connected to the antenna port. Operating a unit without an antenna, dummy load, or terminator connected to the antenna port can permanently damage a unit.! ImportantThe AWE 120-24 must be connected only to a Wi-LAN approved power supply unit with an output of 12 Vdc. See DC Power Plug Pinout, page 150 for pinout information.
Installation14 AWE 120-24 Installation & Configuration Guide Antenna and Power Connections2. Check the powera) Plug the AC power cord into the AC power outlet.b) Plug the DC power plug (12 Vdc) to the unit’s power connector.c) Plug the AC power cord into the power supply unit. The green Power LED on the front of the unit turns ON and the Air, Mode and WIRE LEDs turn ON briefly then turn OFF The green Power LED stays ON. The Mode LED stays OFF (indicating Normal mode). The Air LED is orange, green, red or OFF. See Front Panel LEDs, page 149 for more information about LEDs. If the green Power LED does not turn ON, check your AC power source and the power supply unit. Measure the power supply unit voltage at the DC Power Plug between pins 1 and 2. See DC Power Plug Pinout, page 150. The output should be 12 Vdc and the power supply unit power LED should be ON.Power Supply UnitAC Power CordDC PowerPlug12 VdcAntenna portHint: To turn unit power ON or OFF,connect or cord here.disconnect the powerPower LEDCoaxialCableIndoorAntennaSMA to N-typeAdaptor
3 Configure UnitsJUL 2001 Rev 03 153 Configure UnitsThis section describes how to configure a base station and a remote unit, which are the two basic units required for a point-to-point wireless link. After you configure and test this basic equipment, you can configure and test all the remaining remote units. See Configuration, page 29 for detailed information about configuration settings.Configuring a Base StationWhen you configure a unit as a base station, you need to perform the following tasks. • Check the Network Configuration information of the unit. • Set the Station Type • Assign the Station Rank • Select a Center Frequency • Select an Acquistion Code • Set Tx Power Level Adjust level • Set the security passwords • Change the default menu passwordsThese tasks are described below in detail.➧ To configure a unit as a base station1. Connect a PC to the AWE unit that will be the base station. Connect the COM port of the PC to the Serial port of the AWE with the adapter plug and straight through RS-232 cable.Connecting PC to Serial PortAWE UnitRS 232 SerialCable toRS-232 Adapter SerialPort (DB9)DetailPC COM portAWEDB 25 to 9 pinPCRS-232 Serial Cableto PC COM portSerial Port(See detail)
Installation16 AWE 120-24 Installation & Configuration Guide2. Start the terminal emulation program. Use the following communication settings: 9600 bps, 8 bits, no parity, 1 stop bit, no flow control.3. Press Enter. The AWE Login window is displayed. 4. Type the default password (supervisor) and press Enter. The Main Menu is displayed.Note: supervisor enables you to change the configuration settings with the Main Menu. See Setting Menu Passwords, page 94 for more information about menu passwords.Main Menu5. Select Network Configuration. Check the network configuration information, the IP address and subnet mask settings. If necessary, change settings to match the network plan. Wi-LAN AWE 120-24 LoginSoftware: Rev 0.0.0 (Aug 25 2000 10:13:37)Hardware: Rev 0.0.0 (4MB SDRAM, 4MB Intel Flash)Enter Password: Wi-LAN AWE 120-24 Main Menu -> Unit Identification Hardware/Software Revision System Software ROM Images Current System Status Network Configuration IP Filter Configuration RF Station Configuration Radio Module Configuration RF/Ethernet Statistics System Security System Commands Link Monitor Display LogoutHow to Use the Main Menu• To select an item from the Main Menu or a sub-menu, press the keyboard arrow keys to move the cursor –> next to item. Press the Enter key to open the data entry field.• To scroll through items in the data entry field, press . Press to select an item from the field.• To exit from a menu, press the Esc key. EnterEnterEsc
3 Configure UnitsJUL 2001 Rev 03 176. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration window is displayed. • Select Station Type. Choose Base Station. • Select Station Rank. Enter the total number of remote units in your wireless network. For example, if you have only one remote unit, enter "1". If there are 20 remote units, enter "20". • Select Center Frequency. Press the up or down arrow keys to choose the frequency. All wireless units must be set to the same center frequency. • Select Security Password 1. Type security passwords in hexadecimal for the unit. All units in the same network must have the same set of security passwords. • Select Scambling Code. Enter a hexadecimal value or leave the default at "0". All units in the same network must have the same scambling code. • Select Acquistion Code. Enter a value from 0–15. (All units in the same network must have the same acquisiton code.) • Select Config Test Minutes. Enter a time in minutes, for example, 10. The unit will automat-ically reboot when this time period expires, and uses the settings stored in flash memory instead of current settings. • Select Tx Power Level Adjust. Choose an initial value of 0 dB, which means no Tx power attenuation. • Select Reboot New RF configuration and press Enter. The unit reboots and the Login window is displayed.7. Log in to the unit. (Type supervisor for the password). The Main Menu is displayed.8. Select Radio Module Configuration and press Enter. The Radio Module Configuration window is displayed. • Select Save Current Config to Flash and press Enter. The new settings are stored in flash memory and displayed on the menu. The word appears on the screen.9. Press Esc to go back to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to ExecuteSuccess
Installation18 AWE 120-24 Installation & Configuration Guide10. Select Logout to exit or press Esc.Note: At this time you may want to finish configuring the base station according to the network plan. See Configuration, page 29 for instructions about viewing and changing various settings.Configuring a Remote UnitWhen you configure a unit as a remote unit, you need to do the following tasks. • Check the Network Configuration information of the unit • Set the Station Type of the unit to "Remote Unit" • Assign the Station Rank (polling ID # of the remote unit) • Select a Center Frequency (must be the same for all units in network) • Select an Acquistion Code (must be the same for all units in network) • Set Tx Power Level Adjust intially to "0 dB" • Set the security passwords (must be the same for all units in network) • Change the default menu passwordsThese tasks are described below in detail.➧ To configure a unit as a remote unit1. Connect a PC to a AWE remote unit. Connect the COM port of the PC to the Serial port of the remote unit using an adapter plug and RS-232 cable. See Configuring a Base Station, page 15 for cabling diagram.2. Start the terminal emulation program (see Appendix B: Using HyperTerminal, page 127). Use the following commnication settings: 9600 bps, 8 bits, no parity, 1 stop bit, no flow control.3. Press Enter. The AWE Login window is displayed. Type the default password supervisor and press Enter. The Main Menu is displayed. 4. Select Network Configuration. Check the IP settings. If necessary, change the settings to match the network plan.5. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration window is displayed.
3 Configure UnitsJUL 2001 Rev 03 19 • Select Station Type. Choose Remote Unit. • Select Station Rank. Enter the rank number of the remote unit. Enter a number from 1–1000. • Select Center Frequency. Choose a frequency and press Enter. Remote units must be set to the same center frequency as the base station. • Select Security Password 1. Type security passwords in hexadecimal for the unit. All units in the same network must have the same set of security passwords. • Select Scambling Code. Enter a hexadecimal value or leave the default at "0". All units in the same network must have the same scambling code. • Select Acquistion Code. Enter a value from 0–15. (All units in the same network must have the same acquisiton code.) • Select Config Test Minutes. Enter a time in minutes, for example, 10. The unit will automat-ically reboot when this time period expires, and uses the settings stored in flash memory instead of current settings. • Select Tx Power Level Adjust. Choose an initial value of 0 dB, which means no Tx power attenuation. • Select Remote Unit RF Group. Enter a value from 0–63. (For testing purposes, you may leave the value = 0.) • Select Reboot New RF configuration and press Enter. The unit reboots and the Login window is displayed.6. Log in to the unit. (Type supervisor for the password). The Main Menu is displayed.7. Select Radio Module Configuration and press Enter. The Radio Module Configuration window is displayed. The settings under Current change to values that were in the New column.8. Select Save Current Config to Flash and press Enter. The new settings are stored in flash memory and displayed on the menu. The word appears on the screen.9. Press Esc to go back to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to ExecuteSuccess
Installation20 AWE 120-24 Installation & Configuration Guide10. Select Logout to exit or press Esc.Note: At this time you may want finish configuring the unit according to the network plan. See Configuration, page 29 for instructions about viewing and changing various settings.4 Bench Test UnitsIn this section, you will perform the following tasks.• Ensure that a basic RF link exists between a base station and a remote unit• Test the ability of the link to carry test data• Perform a simple network testEstablishing a Basic RF LinkThis test ensures that a basic RF link exists between a base station and a remote unit.Tip: Configure one unit as a base station, then use it to test all the remote units.➧ To establish a basic RF link1. Ensure that one unit is configured to a base station, select a center frequency and set the test minutes. See Configuring a Base Station, page 15.2. Ensure that the other unit(s) are configured as remote units and with the center frequency the same as the base station. See Configuring a Remote Unit, page 18.3. Place the base station and a remote unit at least two meters apart with a clear line of sight between antennas. For directional antennas, point antennas toward each other. For a dipole antenna, orient the antenna vertically.! ImportantThe quality of your digital data transmission depends greatly on the quality of your RF link. Always try to establish a high-quality RF link first. A high-quality RF link will result in high-quality data transmissions and a low BER. A low-quality RF link will result in low-quality data transmissions and a high bit error rate (BER). Digital data can always be sent across a high-quality RF link. If the RF link is of poor quality, data either cannot be sent at all or will contain too many errors to be useful..
4 Bench Test UnitsJUL 2001 Rev 03 21Basic Test Setup4. Power up the base station. The green Power LED is ON. The Air LED of the base unit is red. This Air LED color indicates that the unit is transmitting data but is not receiving a response. (The reason is that the remote is powered off.)5. Power up the remote unit. The green Power LED is ON. The Air LED of the remote unit turns orange and the Air LED of the base station also turns orange as both units send and receive data from each other. Orange is the normal Air LED color.The color of the Air LED during this step indicates the following conditions.Note: If antennas are placed too close together (< 2 m), the strong transmit signal can saturate the receiving unit. Fine-tune antennas by changing antenna orientations until the Air LED is orange.Next, you will test the link’s basic ability to carry data.Orange (both stations) Units are continuously sending and receiving sync packetsRed (base station) Stations are configured incorrectly, and the base station is transmitting without receiving acknowledgmentGreen (remote station) Stations are configured incorrectly, and the remote station is receiving packets to which it cannot respondOff Nothing is being received (by the remote) or transmitted (from the base)2 mminimumAir LED = orangeBase Unit Remote UnitAir LED = orangeIndoorAntennaIndoorAntennaAir Mode Wire Power Air Mode Wire PowerCoax Adapter CableCoax Adapter Cable
Installation22 AWE 120-24 Installation & Configuration GuideTesting a Basic RF LinkWhen both the base station and remote unit can receive and transmit data to each another (indicated by orange Air LEDs on both units), a basic RF link is established. You can now test the link with Link Monitor. Link Monitor tests a link by sending and receiving test data over a link, in both directions, at the same time. For information about testing a link in the receive or transmit direction only, see Performing Link Monitor Test (Normal Mode), page 52.➧ To test the RF link1. Connect the test PC to the Serial port of the base station or remote unit. See Connecting PC to Serial Port, page 15.2. Log in to the unit and go to the Main Menu.3. Select RF Station Configuration and press Enter. The RF Station Configuration window is displayed. • Select Operating Mode. Press the arrow keys to select Normal mode. • Select RF Transmit Status. Select unblocked. • Select Link Monitor Remote Station Rank. Enter the rank of the unit that you want to link test. (The rank is the identification number of the unit. The rank of a remote can be any num-ber from 1 – 1000. The rank number of the the base station is always 0. See Setting the Station Rank, page 73.) • Select Link Monitor/Output Power. Choose Normal • Select Signal Margin and enter an initial value of 6. • Select Link Monitor Period. Enter a link monitor period of 1. (A value of 1 means that 50% of available data packets will carry test data. The higher the period number, the fewer the number RF Station Configuration Operating Mode -> Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 1 Link Monitor/Output Power Normal User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
4 Bench Test UnitsJUL 2001 Rev 03 23of data packets that will carry test data. See Setting the Link Monitor Period, page 59 for more infor-mation.) The Link Monitor test starts as soon as a non-zero value is entered in the field.4. From the Main Menu select Link Monitor Display and press Enter. The RF Background Link Monitor Statistics window is displayed.5. Check for the following statistics. • Base to Remote BER = 0.0E+00 • Remote to Base BER = 0.0E+00 • Base to Remote Corr Power between 15 – 50 dB • Remote to Base Corr Power between 15 – 50 dB If the Corr Power is <15 dB the receive signal is probably too weak to be useful. If the power is > 55 dB the receiving unit is probably being saturated. If you have problems ensure the unit is configured to its basic default settings (see Restoring Factory Configurations, page 101) and reconfigure the unit, or contact Wi-LAN technical assistance center.6. When you finish viewing link monitor statistics, disable Link Monitor to remove the overhead test data from the wireless link. To disable Link Monitor, select RF Station Configuration from the Main Menu and press Enter. The RF Station Configuration window is displayed.7. Select Link Monitor Period and press Enter. The field is highlighted.8. Type 0 in the field and press Enter. The link monitor test ends.9. Press Esc to exit to Main Menu.Note: You can also set the Tx power automatically. See Setting Tx Power Automatically (Remote Station Only), page 63.You have now established an RF link between two units, tested the ability of the link to carry test data, and adjusted the Tx power level. Next, you connect the units to a network and perform some simple network tests.Performing Simple Network TestsTo test units within a simple network you require two AWE 120-24 units, a LAN connection, a PC and a crossover ethernet cable or hub connection.➧ To perform network tests RF Background Link Monitor Statistics Link Monitor Rank 1 Base to Remote BER 0.0E+00 Remote to Base BER 0.0E+00 Missed Packet Count 0 Base to Remote Env Power 27 Base to Remote Corr Power 28 Remote to Base Env Power 29 Remote to Base Corr Power 30
Installation24 AWE 120-24 Installation & Configuration Guide1. Connect the Ethernet port of the remote unit to the wired LAN.2. Place a ferrite block on the Ethernet cable and power cord, approximately 4 cm from jacks.Ethernet Connection3. Connect the Ethernet port of the base station to the internet port of the PC. You can either connect via a network hub or connect directly using an RJ45 crossover ethernet cable.Network Test SetupAntennaPowerEthernet PortEthernetTo wired LAN or PC Internet portFerrite blockFerrite blockPower cordEthernet cableBase UnitPCLAN10/100 BaseT HUB10/100 BaseT CableDirect 10/100 BaseT Cable (Crossover)Cable connects toEthernet port(StraightThrough)Cable10/100 BaseTAir Mode Wire Power Air Mode Wire Power2 mminimum
4 Bench Test UnitsJUL 2001 Rev 03 254. Power up both AWE units. Initially the LEDs should appear as follows.5. Configure the AWE units within your network. See Network Configuration, page 39 for information about AWE Internet addresses. See Appendix C: Configuring a Simple Data Network, page 129 for information about configuring simple peer-to-peer networks.6. Create some network traffic to test the wireless link. For example, use ping or ftp put and get to transfer a large test files, in both directions, across the link. The WIRE LED on the AWE indicates link file transfer activity to the wired LAN. When the file transfer is done, ftp displays the size of the file and the time it took to transfer the file. This information can be used to measure the data throughput of the wireless link, and is very useful for troubleshooting.7. Test all units in the network.Power LED GreenMode LED OffAir LED OrangepingftpUsing ping and ftpFrom the command line prompt, type:C:> ping IP Address To connect to the node, from the DOS prompt, type:C:> ftp IP Address Example:ping 192.163.2.88Follow the instructions. ftp> help For instructions about using ftp, type "help" at the ftp prompt.
Installation26 AWE 120-24 Installation & Configuration Guide5 Install UnitsThis section provides some guidelines about installing units in the field.• Install the units at locations identified in the network plan. Some units will simply sit on a table or desk and do not require any special antenna work. Other units must be installed inside communication cabinets or racks and will require professional antenna installation. • Verify that there is no interference at the site by performing spectrum sweeps with a spectrum analyzer. Perform sweeps at various times of the day (for example, 9AM, noon, and 3 PM are peak telephone traffic times.) If there are problems, contact the network planner, who may need to change the system configuration or design.• Sweep antennas and cables with the Site Master® communications test set, before securing antennas and cables to towers, while they are on the ground and easy to access. Sweeping helps to ensure that antennas and cables will operate as expected.• Initially install equipment with flexibility—do not tie down cables, antennas should be free to move, allow some slack in cables, avoid drilling and do not seal connections.• Align antennas. (Two people are required, one at the base station and one at the remote unit. When in the field, you may require binoculars and 2-way radios to communicate.) When aligning antennas, adjust the orientation of the remote antenna while running a link monitor test between the remote and the base station. Adjust the antenna until you achieve the highest fade margin with no bit errors (BER = 0). See Performing the RSSI Test, page 57 and Performing Link Monitor Test (Normal Mode), page 52 for instructions. Repeat the antenna alignment procedure for each remote.• When antennas are aligned and cables are secured, sweep the antennas with the Site Master test set a final time before connecting to AWE.• Perform diagnostic tests on the installed system. Compare field results to bench test results using ping, ftp, fade margins, etc. Document your results (these results will be very useful when troubleshooting and monitoring the system’s performance).• When the system works as specified in the network plan, lock down and weatherproof all equipment and connnections.CAUTIONNever operate a unit without an antenna, dummy load, or terminator connected to the antenna port. Operating a unit without an antenna, dummy load, or terminator connected to the antenna port can permanently damage a unit.WARNINGAntennas must be professionally installed following accepted safety, grounding, electrical, and civil engineering standards.!
6 Test NetworkJUL 2001 Rev 03 27 Point-to-Multipoint InstallationThe procedure for installing a point-to-mulitpoint system is the same as the procedure for installing a point-to-point system. Treat each link in a point-to-multipoint system as a single, point-to-point wireless link.Co-Location InstallationWhen you install a system with sectors and co-located base stations (see Creating a Network with Cells, page 5 for an example), you install and test sectors as if they were point-to-point systems; however, in this case you must ensure that individual sectors are not interfering with each other.• Align and test the first sector. Measure the fade margin and run the link monitor test. Document your results, then turn off the radio in the first sector.• Align and test the second sector. Measure the fade margin and run the link monitor test. Leave the link monitor test running in the second sector.• Turn on the radio in the first sector again and run the continuous tranmit test. See Performing Transmit and Receive Tests, page 55.• Observe the BER and fade margin of the second sector radio. Look for changes to determine if the first sector is interfering with the second sector.• Repeat the tests for all sector/pair combinations. 6 Test NetworkRun the link monitor test, transmit test and network tests such as ping and ftp file transfers to verify operation when the units are installed in the field. See Performing Link Monitor Test (Normal Mode), page 52. Adding to a NetworkAlways add to your network one link or device at a time, working from a known base network. Measure and document changes to the system and changes in performance. For example, you can transfer files with ftp and measure the performance with LAN analyzer software. The key to a successful network is to proceed one step at a time and to understand your network!
Installation28 AWE 120-24 Installation & Configuration GuideNetwork Test SetupPreventative Maintenanceand MonitoringYou should set up a preventative maintenance schedule for your network. Wi-LAN recommends that the following preventative maintenance be performed at least semi-annually. • Regularly run link monitor tests across the network and measure BER and fade margin. You can also test the network with ping, ftp and file transfers. Other resources are available on the Internet that can help you monitor the performance of your link.• If you have SNMP application software, you can check unit operation from a remote location. See Appendix D: SNMP, page 135 for more information.You should periodically perform a physical inspection of each site. • Check that antennas and cables are secure and have not become loose. • Check for physical obstructions in the line-of-sight radio path, such as trees and buildings. • Sweep antennas and cables to ensure that antennas and cables are intact and operating properly. • Check that there are no water leaks in cabinets. • Check weatherproofing. • Check for new sources of electromagnetic interference.IndoorAntennaIndoorAntennaBase Unit Remote UnitLAN10/100 BaseT HUBPC with LAN analyzer softwarePCAir Mode Wire Power Air Mode Wire Power
JUL 2001 Rev 03 29ConfigurationOverviewThis section explains how to use the Main Menu to configure and test your AWE unit, and to obtain useful statistical and maintenance information.Main MenuIn this section, each item in the Main Menu is described in the order that it appears in the menu. See Appendix F: Menu Map, page 151 for a complete listing of submenus. Use the Main Menu and your keyboard keys to select, view or change settings. Some items in the menu simply display information, while others ask you to enter data or make a selection from a list.Main Menu Wi-LAN AWE 120-24 Main Menu -> Unit Identification Hardware/Software Revision System Software ROM Images Current System Status Network Configuration IP Filter Configuration RF Station Configuration Radio Module Configuration RF/Ethernet Statistics System Security System Commands Link Monitor Display Logout
Configuration30 AWE 120-24 Installation & Configuration GuideAccessing the Main MenuYou can access the Main Menu of a AWE unit with a HyperTerminal® session or other terminal emulation software or a telnet session. Most instructions provided in this chapter assume that you have opened a HyperTerminal session.You can also configure the AWE 120-24 remotely with the SNMP (Simple Network Management Protocol). See Appendix D: SNMP, page 135 for information about SNMP.Accessing the Main Menu with HyperTerminal®To access the Main Menu with HyperTerminal1. Disconnect power from the AWE unit.2. Connect a serial cable from a DB9 serial port on the PC to the Serial port on the AWE. See Configuring a Base Station, page 15.3. Start Hyperterminal or another terminal emulation program on the PC. See Appendix B: Using HyperTerminal.4. Set the terminal emulation program to emulate a VT100 terminal with the following settings.• COM port PC serial port connected to AWE unit• Bits per second: 9600• Data bits: 8• Parity: none• Stop bits: 1• Flow control: none5. Reconnect the power to the AWE unit.6. Press Enter. The Wi-LAN AWE 120-24 Login menu is displayed.7. Type a default password (user or supervisor) or type your personal password if already have one.The Main Menu is displayed.Login Account Default Password PrivilegesUser user Read OnlySupervisor supervisor Read and WriteWi-LAN AWE 120-24 LoginSoftware: Rev 0.0.0 (May 25 2000 10:13:37)Hardware: Rev 0.0.0 (4MB SDRAM, 4MB Intel Flash)Enter Password:
Accessing the Main MenuJUL 2001 Rev 03 31Accessing Units via telnetTo access units via telnet1. Ensure that the unit’s Internet IP address has been configured, the unit has a working Ethernet connection, and wire and remote access has been enabled (see Allowing Remote Access and Configuration, page 96).2. Ensure that the VT100 Arrows feature in your telnet session is enabled. See Setting VT100 Arrows, page 31.3. From the DOS prompt, typeC:>telnet <IP address> where <IP address> is the IP address of the unit that you want to configure.4. Press Enter. The Login menu is displayed.5. Type the default password (user or supervisor) or type your personal password.The Main Menu is displayed. Setting VT100 ArrowsTo set the VT100 arrows in Microsoft telnet1. In the active Microsoft telnet 1.0 session, select Terminal, Preferences from the menu bar. The Terminal Preferences window is displayed.2. Click the VT100 Arrows checkbox.3. Click OK. The VT100 arrows are enabled in the telnet session.You can now use the keyboard arrow keys to navigate the configuration menus.Wi-LAN AWE 120-24 LoginSoftware: Rev 0.0.0 (May 25 2000 10:13:37)Hardware: Rev 0.0.0 (4MB SDRAM, 4MB Intel Flash)Enter Password:
Configuration32 AWE 120-24 Installation & Configuration GuideConfiguring with the Main MenuThis section describes how to configure units using the Main Menu. Menu items are discussed below in the order that they appear in the menu.Main MenuAccessing HelpOn-screen help is available for items listed in the Main Menu.➧ To access help1. From the Main Menu, select an item from the list and press Enter. The screen for the item is displayed.2. Press H on the keyboard. The Help Menu for the screen is displayed. 3. Place the cursor next to an item on the Help Menu and press Enter. The help text for that item is displayed.Note: To navigate to the next page or to the previous page, press the up or down arrow keys on the keyboard or follow instructions given at the top of the screen.4. Press Esc to exit to the Main Menu. Wi-LAN AWE 120-24 Main Menu -> Unit Identification Hardware/Software Revision System Software ROM Images Current System Status Network Configuration IP Filter Configuration RF Station Configuration Radio Module Configuration RF/Ethernet Statistics System Security System Commands Link Monitor Display LogoutHow to Use the Main Menu• To select an item from the Main Menu or a sub-menu, press the keyboard arrow keys to move the cursor –> next to the item. Press the Enter key to open the data entry field.• To scroll through items in the data entry field, press . Press to select an item from the field.• To exit from a menu, press the Esc key. EnterEnterEsc
Configuring with the Main MenuJUL 2001 Rev 03 33Example:1. From the Main Menu place the cursor -> next to RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Press the "H" key on the keyboard. The Help screen for the menu is displayed. 3. Place the cursor next to an item on the Help Menu and press Enter. The help text for the item is displayed on the screen.4. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode -> Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 1 Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB Current Output Power Level Adjust -21Esc - Exit Help RF Station Configuration Help Menu Operating Modes -> RF Transmit Status Link Monitor Period Test Mode Timer Minutes Maximum Remote Distance Link Monitor Remote Station Rank Throttling
Configuration34 AWE 120-24 Installation & Configuration GuideUnit IdentificationViewing Unit IdentificationYou can view a unit’s serial number, production date, and MAC address with the Unit Identification menu. The fields are view only and are set at the factory. You can also view the Unit Name/Description, Unit Location, and Contact Name. These fields are optional and can be changed.➧ To view unit identification information1. From the Main Menu, select Unit Identification and press Enter. The Unit Identification menu is displayed. Serial Number Unique serial number of unit (Read Only)Production Date Date unit was produced (Read Only)Ethernet MAC Address Unique Internet MAC (Media Access Control) address of the unit (Read Only)Factory Output Power Adjust CeilingFactory-set value of output power ceiling. (Read Only).Unit Name/Description Name of unit (optional)Unit Location Location of unit (optional)Contact Name Name of contact person (optional) Unit Identification Serial Number Serial-Number Production Date Jun 07 2000 Ethernet MAC Address 001030000000 Factory Output Power Adjust Ceiling -5 dB Unit Name/Description ->System Name Unit Location System Location Contact Name System Manager's Name
Unit IdentificationJUL 2001 Rev 03 35Assigning Unit Identification InformationYou can assign a name, location and contact name to units. This information will help you to distinguish units by physical location or by meaningful names rather than station rank only. Unit identification information is optional.➧ To assign or change unit identification information1. From the Main Menu, select Unit Identification and press Enter. The Unit Identification menu is displayed.2. Select Unit Name/Description and press Enter. The data field highlights.3. Type in a new name or description.4. Press Enter. The new name or description is displayed in the data field.5. Select Unit Location and press Enter. The data field highlights.6. Type the location of the unit.7. Press Enter. The new location appears in the data field.8. Select Contact Name and press Enter. The data field highlights.9. Type a contact or manager name.10. Press Enter. The new name appears in the entry field.11. Press Esc to exit to the Main Menu. Unit Identification Serial Number Serial-Number Production Date 01-01-2000 Ethernet MAC Address 001030040502 Factory Output Power Adjust Ceiling -5 dB Unit Name/Description -> System Name Unit Location System Location Contact Name System Manager's Name
Configuration36 AWE 120-24 Installation & Configuration GuideHardware/Software RevisionViewing System Revision InformationThe System Revision Information window shows the revision information of the unit including memory revision number, memory size and software revision number. ➧ To view system revision information1. From the Main Menu, select Hardware/Software Revision and press Enter. The System Revision Information window is displayed. The menu is view only.2. Press Esc to exit to the Main Menu.Hardware Revision number of the unit, the amount SDRAM and FLASH memory available in the unitROM Size Amount of Flash read-only memory in the unit = 4 MBRAM Size Amount of random-access memory in the unit = 4MBSoftware Revision number of the system image running on the unit, the date of the revision, and the size of the image file (in this example FACTORY-IMAGE is about 318 Kbytes)File Name File name of the system image running on the unit System Revision InformationHardware Rev 0.0.0 (4MB SDRAM, 4MB Intel Flash)ROM Size 0x400000RAM Size 0x400000Software Rev 0.0.0 (Wi-LAN AWE 120-24 WEBII) June 26 2000 10:13:37 318452 BytesFile Name FACTORY-IMAGE
System Software ROM ImagesJUL 2001 Rev 03 37System Software ROM ImagesViewing System Software ROM ImagesA ROM image is the software that a unit uses to operate. The System Software ROM Images window lists software images currently available in the unit. New images can be loaded into a unit’s Flash ROM from an outside source such as a PC or EPROMs inside the unit that contain the software can be replaced. The example below shows that only the "Factory-Image" is available, however, in the future other images may be available. If required, you can obtain a new image file from Wi-LAN Technical Assistance Center and download it to your AWE unit–see Appendix G: Upgrading Software, page 153 for instructions. See Setting Default System Image, page 99 for instructions about selecting a default image.➧ To view system software ROM images1. From the Main Menu, select System Software ROM Images and press Enter. The System Software ROM Images window is displayed. The window is view only.2. Press Esc to exit to the Main Menu.File Name Name(s) of system image file(s) stored in the unit. To add or delete images you must use ftp. See Appendix G: Upgrading Software, page 153Revision Revision number of the system image file. Each time the system image is modified, the revision number increases by 1 unit. For example, the first revision to the file would make the revision number 0.0.1Date Date image file was last revisedTime Time image file was last revisedSize Size of image file in bytesDefault Image Indicates which image file is the default. Default Image is used at power up. See Setting Default System Image, page 99 to modify default image System Software ROM Images File Name Revision Date Time Size Default Image-------------------- -------- ----------- -------- ------ -------------FACTORY-IMAGE 0.0.0 Aug 24 2001 10:13:37 306524 Current
Configuration38 AWE 120-24 Installation & Configuration GuideSystem Current StatusViewing System Current StatusThe System Current Status window provides administration information such as the amount of time a unit has been running and login statistics.➧ To view system current status1. From the Main Menu, select System Current Status and press Enter. The System Current Status window is displayed. The window is view only.2. Press Esc to exit to the Main Menu.Cumulative Run-Time Number of hours the system has been running since it was manufactured—information is required for maintenance purposesCurrent Run-Time Time duration since the unit was last reset or power cycledSuccessful Logins Number of times the configuration menus have been successfully accessedUnsuccessful Logins Number of times access to the configuration menus has failedLocal User Logged In Access level of user currently logged into the configuration menus via the RS-232Telnet User Logged In Access level of user currently logged into the configuration menus via a telnet sessionFTP User Logged In Access level of user currently logged into the host FTP server System Current Status Cumulative Run-Time Days: 0 Hours: 7 Current Run-Time Days: 0 00:38:38 Successful Logins 16 Unsuccessful Logins 1 Local User Logged In Supervisor Telnet User Logged In None FTP User Logged In None
Network ConfigurationJUL 2001 Rev 03 39Network ConfigurationEach AWE 120-24 unit in a system must have a valid Internet IP address and subnet mask to communicate via TCP/IP. You will need to know this information to remotely manage units. Your system administrator should be able to supply you with this information.Viewing Internet IP Addresses and Subnet Mask➧ To view the Internet IP addresses and subnet mask1. From the Main Menu, select Network Configuration and press Enter. The Network Configuration menu is displayed.2. Press Esc to exit to the Main Menu.Internet IP Address IP address of unitNew Internet IP Address (Reboot Reqd)New IP address of unit. Required when changing IP addressInternet IP Subnet Mask Number that is used to determine if a node is part of LAN or whether a transmission must be handled by router (the subnet mask is logically ANDed with the IP address)Default Gateway IP Address Address of main entry point into the networkSNMP NMS Trap IP Address NMS (network management system) trap address Collects alarms and events and passes them to the network administratorMAC Filter Entry Age Time MinutesNumber of minutes after which the MAC (Media Access Control) filter entry will expire Network Configuration Internet IP Address 192.168.1.100 New IP Address (Reboot Reqd) -> 192.168.1.100 Internet IP Subnet Mask 255.255.255.0 Default Gateway IP Address 0.0.0.0 SNMP NMS Trap IP Address 0.0.0.0 MAC Filter Entry Age Time Minutes (1-60) 5
Configuration40 AWE 120-24 Installation & Configuration GuideSetting the Internet IP Address➧ To set the new Internet IP address1. From the Main Menu, select IP Network Configuration and press Enter. The Network Configuration menu is displayed.2. Select New IP Address and press Enter. The data field highlights.3. Type the unique Internet IP address for the unit.4. Press the Enter key. The new Internet IP address appears in the New IP Address (Reboot Reqd)field, but the old address remains in the Internet IP Address field.5. To save the changes, reboot the unit or power the unit down and up.6. Press Esc to exit to the Main Menu.Setting the IP Subnet Mask➧ To set the default IP subnet address1. From the Network Configuration menu, select Internet IP Subnet Mask and press Enter. The data field highlights.2. Type the Internet IP subnet mask for the unit.3. Press Enter. The Internet IP subnet mask appears in the field and is assigned to the unit.4. Press Esc to exit to the Main Menu. Network Configuration Internet IP Address 192.168.1.100 New IP Address (Reboot Reqd) -> 192.168.1.100 Internet IP Subnet Mask 255.255.255.0 Default Gateway IP Address 0.0.0.0 SNMP NMS Trap IP Address 0.0.0.0 MAC Filter Entry Age Time Minutes (1-60) 5
Network ConfigurationJUL 2001 Rev 03 41Setting the Default Gateway IP Address (future)You can define the IP address of the system gateway. This address designates the main entry point into the network and is usually in the same subnetwork as the unit IP address.➧ To set the default gateway IP address1. From the Network Configuration menu, select Network Configuration. The Network Configuration menu is displayed.2. Select Default Gateway IP Address and press Enter. The data field highlights.3. Type the default gateway IP address for the unit.4. Press Enter. The default gateway IP address for the unit appears in the field.5. Press Esc to exit to the Main Menu.Setting the SNMP NMS Trap IP Address (future)The SNMP (System Network Management Protocol) NMS (Network Management System) Trap IP address identifies the IP address of the network manager. This address passes alarms or events from the unit to the network manager. The network manager can define the types of traps or alarms that will be forwarded to the IP address.➧ To set the SNMP NMS trap IP address1. From the Network Configuration menu, select SNMP NMS Trap IP Address and press Enter. The data field highlights.2. Type the SNMP NMS Trap IP address for the unit.3. Press Enter. The SNMP NMS Trap IP address appears in the entry field and is applied to the unit.4. Press Esc to exit to the Main Menu.Setting the MAC Filter Entry Age Time MinutesThe MAC Filter Entry Age Time Minutes setting enables you to control the number of minutes after which the MAC (Media Access Control) filter will expire. This feature enables you to set the MAC time period of a unit to a value that is most compatible with the MAC time period of other devices on a network.➧ To set the MAC Filter minutes1. From the Network Configuration menu, select MAC Filter Entry Age Time Minutes and press Enter. The data field highlights.2. Type a value from 1–60 and press Enter. The number of minutes appears in the entry field and is applied to the unit.3. Press Esc to exit to the Main Menu.
Configuration42 AWE 120-24 Installation & Configuration GuideIP Filter ConfigurationTwo different IP filters are available: a packet filter, and an address filter. The IP packet filter determines which type of packets are allowed to pass through a unit. If the IP Packet Filter is OFF, the unit passes all packets. If the IP Packet Filter is ON, the unit passes only IP and ARP (Address Resolution Protocol) packets. IP address filters are actually tables that contain lists of IP addresses. If an address is listed in the table, the unit will pass data packets to other IP addresses. If it is not listed, the unit will not pass data packets.Each IP address filter is defined by a range and a base value. IP address filtering improves system security and helps manage data throughput.Viewing IP Filter Configuration➧ To view current IP filter configuration1. From the Main Menu, select IP Filter Configuration and press Enter.The IP Filter Configuration menu is displayed.IP Address Filter Tablexxx.xx.xx.xxxx.xx.xx.xxxx.xx.xx.xWireAirData packets pass onlyif the IP address islisted in the IP filter tableIPAddresses IP Filter ConfigurationIP Packet Filtering -> offIP Address Filtering onDefault IP Address Filtering Pass Filter Entry Range (0-255) Base Address State------------------- ------------------- ------------------- ------------------- 1 10 123.110.1.1 Pass 2 0 0.0.0.0 Pass 3 0 0.0.0.0 Pass 4 0 0.0.0.0 Pass 5 0 0.0.0.0 Pass 6 0 0.0.0.0 Pass 7 0 0.0.0.0 Pass 8 0 0.0.0.0 Pass
IP Filter ConfigurationJUL 2001 Rev 03 43 Two sample configurations below show how IP address-filtering works.Example 1: Filter 1 blocks all packets containing a LAN-side IP address in the range 192.168.1.1 to 192.168.1.100 inclusive. Filter 2 passes all packets containing a LAN-side IP address in the range 192.168.1.51 to 192.168.1.60. Note that this range partially overlaps the range of Filter 1, resulting in a conflict between filters. When a conflict IP Packet Filteringoff (disabled) All packets are passedon (enabled) Only IP (Internet Protocol) packets and ARP packets can passIP Address Filteringoff (disabled) Packets from all LAN-side IP addresses can passon (enabled) Packets from all LAN-side IP addresses are subject to IP filterDefault IP Address FilteringPassBlockIf IP Address Filtering is off, this item is inactive. If IP Address Filtering is on, this item specifies the action to take when either no filter entry applies or where there is a conflict between filters.Filter Entry n= 1–8 Entry number of the filter. Up to eight filters can be created.Range n = 0–255 Defines how many contiguous IP addresses are in the filter’s list of addressesBase Address n = lowest IP AddressLowest numbered address on the filter’s list of IP addressesState PassBlockDisabledShows state of an individual filter. "Pass" allows packets to pass. "Block" stops packets from passing. "Disabled" enables you to make a particular filter inactive. IP Filter ConfigurationIP Packet Filtering -> offIP Address Filtering onDefault IP Address Filtering Pass Filter Entry Range (0-255) Base Address State------------------- ------------------- ------------------- ------------------- 1 100 192.168.1.1 Block 2 10 192.168.1.51 Pass
Configuration44 AWE 120-24 Installation & Configuration Guideoccurs, the action specified by Default IP Address Filtering takes precedent, which is "Pass". Therefore all packets with IP addresses that "overlap" will be blocked.All packets containing a LAN-side IP addresses not within either filter range are subject to the action specified by Default IP Address Filtering (passed).Example 2: .All packets containing a LAN-side IP addresses not within either filter range are subject to the action specified by Default IP Address Filtering (blocked).Filter 1 passes all packets containing a LAN-side IP address in the range 192.168.1.1 - 192.168.1.50 (except for those IP addresses in the range specified in Filter 2).Filter 2 blocks all packets with a LAN-side IP address in the range of 192.168.1.21 - 192.168.1.30,Filter 3 passes all packets containing a LAN-side IP address in the range 192.168.1.101 - 192.168.1.110 (except for those IP addresses in the range specified in Filter Entry 4).Filter 4 blocks all packets with a LAN-side IP address in the range of 192.168.1.105 – 192.168.1.106.Filter 5 is disabled (not used). All packets containing a LAN-side IP address for which no filter entry applies will be filtered.Note: LAN-side IP address—If a packet arrives at the RF port, the LAN-side IP address is the destination IP address contained within the packet. If a packet arrives on the Ethernet port, the LAN-side IP address is the source IP address contained within the packet. IP Filter ConfigurationIP Packet Filtering -> offIP Address Filtering onDefault IP Address Filtering Block Filter Entry Range (0-255) Base Address State------------------- ------------------- ------------------- ------------------- 1 50 192.168.1.1 Pass 2 10 192.168.1.21 Block 3 10 192.168.1.101 Pass 4 2 192,168.1.105 Block 5 10 192.168.1.150 Disabled
IP Filter ConfigurationJUL 2001 Rev 03 45Enabling IP Packet FilteringIP Packet filtering should initially be set to off so you can start from a known state and observe changes that result from using the IP packet filter.➧ To enable or disable IP packet filtering1. From the IP Filter Configuration menu, select IP Packet Filtering and press Enter. The data field highlights.2. Scroll to choose on or off and press Enter to enable or disable packet filtering.3. Press Esc to save the setting and exit to the Main Menu.Enabling IP Address Filtering➧ To enable IP address filtering1. From the IP Filter Configuration menu, select IP Address Filtering and press Enter. The data field highlights.2. Scroll to choose on or off and press Enter to enable or disable address filtering.3. Press Esc to save the setting and exit to the Main Menu.Setting Default IP Address FilteringThis setting is inactive unless IP Address filtering has been enabled.➧ To set default IP address filtering1. From the IP Filter Configuration menu, select Default IP Address Filtering and press Enter. The data field highlights.2. Scroll to choose Pass or Block and press Enter.3. Press Esc to save the setting and exit to the Main Menu. IP Filter ConfigurationIP Packet Filtering -> offIP Address Filtering onDefault IP Address Filtering Block Filter Entry Range (0-255) Base Address State------------------- ------------------- ------------------- ------------------- 1 100 192.168.1.1 Pass 2 10 192.168.1.51 Block
Configuration46 AWE 120-24 Installation & Configuration GuideSetting Up IP Address Filter➧ To set up an IP address filter1. From the IP Filter Configuration menu, select Range in the Filter Entry 1 row and press Enter. The data field in the Range column highlights.2. Type the Range (a number from 0–255) of the filter and press Enter to close the data field.3. Press the down arrow key to select Base Address and press Enter. The data field highlights.4. Type the IP base address and press Enter.5. Press the down arrow key to select State and press Enter. 6. Scroll through the list and choose Pass, Block or Disable. Press Enter to save the setting.7. To add another filter, press the down arrow key to go to the next filter entry number and fill in the data fields.8. Press Esc to save the filter settings and exit to the Main Menu. IP Filter ConfigurationIP Packet Filtering -> offIP Address Filtering onDefault IP Address Filtering Pass Filter Entry Range (0-255) Base Address State------------------- ------------------- ------------------- ------------------- 1 -> 100 0.0.0.0 Pass 2 0 0.0.0.0 Pass 3 0 0.0.0.0 Pass 4 0 0.0.0.0 Pass 5 0 0.0.0.0 Pass 6 0 0.0.0.0 Pass 7 0 0.0.0.0 Pass 8 0 0.0.0.0 Pass
RF Station ConfigurationJUL 2001 Rev 03 47RF Station ConfigurationThe RF Station Configuration menu enables you to choose the operating mode, run some tests and optimize the RF link. Four tests can be run from this menu: link monitor test, transmit test, receive test and RSSI test. You can optimize a link by setting the maximum remote distance to a remote and by controlling the rate of data throughput (throttling). You can also block a unit so that it cannot pass any data.Viewing Current RF Station Configuration➧ To view the current RF station configuration1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.Operating Mode Four modes are available: Normal Mode, Receive Test, Transmit Test, and RSSI TestRF Transmit Status Determines if data transmissions through the unit will be blocked or passedLink Monitor Period Period determines the amount of test data that is used to test the link. The smaller the number, the larger the amount of test data and test data overhead. A non-zero value starts the link monitor test RF Station Configuration Operating Mode -> Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Configuration48 AWE 120-24 Installation & Configuration Guide2. Press Esc to exit to the Main Menu.Test Mode Timer MinutesMaximum time in minutes that a unit will be allowed to stay in test modeMaximum Remote DistanceDistance value compensates for polling delay due to large distancesLink Monitor Remote Station RankRank (or ID number) of the remote that you want to testThrottle Enable Turns throttling (data throughput control) on or offThrottle Level Determines the data rate of a remote unit. When throttling is enabled, the data rate passed is equal to the throttling level times 64 kbpsLink Monitor/ Output PowerUsed to run Link Monitor test in Normal, Auto Output Power or Dynamic Output Power mode. User Output Power Adjust CeilingUsed to limit the maximum transmit power output for a remote unit.Signal Margin(6-31) dB Desired transmit power safety margin measured with respect to the base station receive sensitivity theshold.
RF Station ConfigurationJUL 2001 Rev 03 49Setting the Operating ModeFour modes are available: Normal Mode, Receive Test, Transmit Test, and RSSI Test.➧ To set the operating mode1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select Operating Mode and press Enter. The data field highlights.Normal Mode Normal operating mode of a unit. Unit transmits and receives data in both directions across the RF link.Link Monitor test is run with the unit set to Normal mode. (You can view the link statistics with Link Monitor Display.)Receive TestReceives test data only. Processes expected packet data and displays statistics on RS-232 monitor. Use this mode to test a unit’s ability to receive data.Transmit TestTransmits test data only. Sends known packet data to the receiving unit. Use this mode to test a unit’s abilty to transmit data.RSSI Test RSSI (Received Signal Strength Indicator) test–indicates signal strength. Unit receives known data packets and displays fade margin data on the Air LED. Use this mode to get a quick visual indication of the signal strength. See Performing the RSSI Test, page 57 for more information. RF Station Configuration Operating Mode -> Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Configuration50 AWE 120-24 Installation & Configuration Guide3. Press the arrow keys to select the desired mode: Normal mode, Transmit mode, Receive mode, or RSSI mode.4. Press Enter. The screen clears, and the Mode LED on the unit is ON. The color of the Mode LED indicates the current mode: Normal Mode = off, Transmit Test = red, Receive Test = green and RSSI Test = orange.5. To exit a mode, briefly disconnect the power or press and hold the Mode button on the rear panel of the unit. The Mode LED goes off (Normal mode) and the Login menu is displayed.Note: The operating mode can also be set with the Mode button on the back of the AWE. See Setting Operating Mode with the Mode Button, page 104 for more information.General Equipment Setup for Performing RF TestsThe general equipment setup is shown below. The specific setup depends on the test you want to run.• To perform the Normal Mode (Link Monitor) test you need to connect a PC to either the base station or a remote unit.• To perform the Transmit Test or Receive Test you need at least one base station with PC, a remote station with PC, and an RF link between units. See Establishing a Basic RF Link, page 20 for instructions about establishing an RF link.• To perform the RSSI test you need a PC for the unit that will transmit. The receiving unit does not require a PC. You can also run this test with the Mode button.General Equipment SetupBefore you run any tests, you should set the number of test minutes, as descibed below in Setting Test Mode Timer Minutes, page 51.Base Unit Remote UnitPC PCRS-232SerialCableRS-232SerialCableCOMPortCOMPortAir Mode Wire PowerAir Mode Wire PowerTo Serial PortTo Serial Port2 mminimum
RF Station ConfigurationJUL 2001 Rev 03 51Setting Test Mode Timer MinutesBefore you run any of these tests, you should set the maximum time, in minutes, that a unit will be allowed to stay in test mode. When this time period expires, the AWE unit performs an automatic software reboot and returns to Normal mode. (Test mode timer minutes setting applies only to Transmit Test, Receive Test, and RSSI Test modes.)Note: The test mode timer minutes can be changed only with this menu. This time period does not apply to Normal mode or the Link Monitor test. See Setting Operating Mode with the Mode Button, page 104.➧ To set test mode timer minutes1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select Test Mode Timer Minutes and press Enter. The data field highlights.3. Type the desired time in minutes (1-1000). (10 minutes is a suggested starting value.)4. Press Enter.5. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) -> 10 Base Station Only ParametersMaximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Configuration52 AWE 120-24 Installation & Configuration GuidePerforming Link Monitor Test (Normal Mode)The link monitor test can be run from either a base station or a remote unit that is set to Normal Mode. The test operates in parallel with the message stream, so it consumes some of the link’s total data capacity. You can control the ratio of test data to message data (and thereby control the amount of test data overhead) by setting the link monitor period. See Setting the Link Monitor Period, page 59 for more information.Note: Link monitor test stays in effect even if you power cycle or reboot units, so you must turn it off using the Link Monitor Period (0 = OFF) setting.➧ To perform Link Monitor test from a base station1. Connect the test PC to the Serial port of the base station. See General Equipment Setup for Performing RF Tests, page 50.2. Log in to the unit and go to the Main Menu.3. Select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.4. Select Operating Mode and press Enter. The data field highlights.5. Press the arrow keys to select Normal mode and press Enter.6. Select RF Transmit Status and press Enter. The data field highlights.7. Press the arrow keys to select unblocked and press Enter.8. Select Link Monitor Remote Station Rank and press Enter. The data field highlights.9. Type the rank of the remote unit that you want to link to and press Enter. (The rank is the identification number of the remote unit. The rank of a remote can be any number from 1 – 1000. See Setting the Station Rank, page 73.)10. Select Link Monitor/Output Power and press Enter. Set it to Normal. RF Station Configuration Operating Mode -> Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Normal User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 5311. Select Link Monitor Period and press Enter. The data field highlights.12. Type a link monitor period (1) and press Enter. Link Monitor starts as soon as a non-zero value is entered in the field. (A setting of 1 means that 50% of all data is test data.)13. View the link statistics. From the Main Menu select Link Monitor Display and press Enter. The RF Link Monitor Statistics window is displayed.14. Check for BER = 0.0E+00 and Corr Power between 15 – 50 dB. If the Corr Power is <15 dB the receive signal is probably too weak. If the power is >55 dB the receiving unit is probably saturated. See Viewing Link Monitor Statistics, page 103 for more information about Link Monitor Statistics.If you have problems, ensure that the unit is configured to its basic default settings (see Restoring Factory Configurations, page 101) and reconfigure the unit, or contact Wi-LAN Technical Assistance Center.15. When finished viewing link monitor statistics, disable Link Monitor to remove the test overhead data from the RF link. Select RF Station Configuration from the Main Menu and press Enter. The RF Station Configuration menu is displayed.16. Select Link Monitor Period and press Enter. The field is highlighted.17. Type 0 in the field and press Enter. The link monitor test ends.18. Press Esc to exit.To perform Link Monitor test from a remote unit1. Connect the test PC to the Serial port of the remote unit. See General Equipment Setup for Performing RF Tests, page 50.2. Log in to the unit and go to the Main Menu. RF Link Monitor Statistics Link Monitor Rank 1 Base to Remote BER 0.0E+00 Remote to Base BER 0.0E+00 Missed Packet Count 0 Base to Remote Env Power 27 Base to Remote Corr Power 28 Remote to Base Env Power 29 Remote to Base Corr Power 30
Configuration54 AWE 120-24 Installation & Configuration Guide3. Select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.4. Select Operating Mode and press Enter. The data field highlights.5. Press the arrow keys to select Normal mode and press Enter.6. Select RF Transmit Status and press Enter. The data field highlights.7. Press the arrow keys to select unblocked and press Enter.8. Select Link Monitor Remote Station Rank and press Enter. The data field highlights and the remote automatically connects with the base station. 9. Select Link Monitor/Output Power and press Enter. Set it to Normal.10. Select Link Monitor Period and press Enter. The data field highlights.11. Type a link monitor period (1) and press Enter. Link Monitor starts as soon as a non-zero value is entered in the field. (A setting of 1 means that 50% of all data is test data.) RF Station Configuration Operating Mode -> Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 5512. View the link statistics. From the Main Menu select Link Monitor Display and press Enter. The RF Link Monitor Statistics window is displayed.13. Check for BER = 0.0E+00 and Corr Power between 15 – 50 dB. If the Corr Power is <15 dB the receive signal is probably too weak. If the power is >55 dB the receiving unit is probably saturated. See Viewing Link Monitor Statistics, page 103 for more information about Link Monitor Statistics.If you have problems, ensure that the unit is configured to its basic default settings (see Restoring Factory Configurations, page 101) and reconfigure the unit or contact Wi-LAN customer support.14. When you finish viewing link monitor statistics, disable Link Monitor to remove the test overhead data from the RF link. Select RF Station Configuration from the Main Menu and press Enter. The RF Station Configuration menu is displayed.15. Select Link Monitor Period and press Enter. The field is highlighted.16. Type 0 in the field and press Enter. The link monitor test ends.17. Press Esc to exit.Note: When testing, it is possible to run the link monitor in both directions over one link by enabling link monitor on the base and the remote at the same time. This situation should be avoided during normal operation because it causes needless overhead.Performing Transmit and Receive TestsWhen performing transmit or receive tests, one unit is set up to operate in Transmit Test mode and the other unit is set up to operate in Receive Test mode. The transmitting unit sends packets of known data to the receiving unit. The receiving unit analyzes the data and displays link statistics on the PC connected to the Serial port.➧ To set up the transmit unit1. Connect a PC to the Serial port of the unit.2. Log in to the unit and go to the Main Menu.3. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.4. Select Operating Mode and press Enter. The field highlights.5. Select Transmit Test and press Enter. The Mode LED on the unit is red, indicating that the unit is transmitting. RF Link Monitor Statistics Link Monitor Rank 1 Base to Remote BER 0.0E+00 Remote to Base BER 0.0E+00 Missed Packet Count 0 Base to Remote Env Power 27 Base to Remote Corr Power 28 Remote to Base Env Power 29 Remote to Base Corr Power 30
Configuration56 AWE 120-24 Installation & Configuration Guide➧ To set up the receive unit1. Connect a PC to the Serial port of the unit.2. Log in to the unit and go to the Main Menu.3. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.4. Select Operating Mode and press Enter. The field highlights.5. Select Receive Test and press Enter. The Mode LED on the turns green, indicating that the unit is receiving. The link statistics are displayed on the receiving unit. Alternating lines of statistics across the screen indicate that data is incoming. See the following example.Link Statistics Example6. Check for BER = 0.0E+00 and CorrP between 15 – 50 dB. If the CorrP is <15 dB the receive signal is probably too weak. If the power is >55 dB the receiving unit is probably saturated. If you have problems ensure that the unit is configured to its basic default settings (see Restoring Factory Configurations, page 101) and reconfigure the unit, or contact Wi-LAN customer support.7. To end the test, briefly disconnect power from the unit or press and hold the Mode button to return to Normal mode.BER Bit Error RateMPC Missed Packet CountEnvP Envelope Power—the power of the received signal inlcuding noise, measured in dB (0–63)CorrP Correlation Power—the power of the received signal, excluding noise, measured in dB (0–63)- BER = 0.0E+00, MPC = 0, EnvP = 63, CorrP = 63| BER = 0.0E+00, MPC = 0, EnvP = 63, CorrP = 63Bit Error Rate MissedPacketCountEnvelope Power Correlation PowerPreviousSampleCurrentSample
RF Station ConfigurationJUL 2001 Rev 03 57Performing the RSSI TestRSSI mode is used to measure the signal strength (fade margin) of a system. When running the test between two units, the transmit unit is set to Transmit Test mode (using either the RF Station Configuration menu or the Mode button). The receive unit is put into RSSI Test mode (using either the RF Station Configuration menu or the Mode button). The Air LED on the receiving unit indicates the fade margin.➧ To run the RSSI test1. Put the receiving unit into RSSI mode. See Setting the Operating Mode, page 49 or Setting Operating Mode with the Mode Button, page 104. The Mode LED is orange when the unit is in RSSI mode.2. Put the transmiting unit into Transmit Test mode. The Mode LED on the unit is red, indicating that the unit is in transmit mode. See Setting the Operating Mode, page 49 or Setting Operating Mode with the Mode Button, page 104.3. Observe the color of the Air LED on the receiving unit. The Air LED is green when the signal strength is acceptable.4. To exit from the test, briefly disconnect power from the unit or press and hold the Mode button to return to Normal mode.Air LED Color Signal StrengthGreen Reliable signal—greater than 15 dB fade marginOrange Marginal signal—between 11 and 15 dB fade marginRed Poor signal—less than 10 dB fade marginBlank No signal at all
Configuration58 AWE 120-24 Installation & Configuration GuideSetting the RF Transmit StatusThis setting can block a unit (or link) from carrying data traffic. It is used to disable units and to discontinue service to customers if necessary.➧ To set RF transmit status1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select RF Transmit Status and press Enter. The data field highlights.3. Select a setting.4. Press Enter.5. Press Esc to exit to the Main Menu.unblocked Unit passes data in both directions(default setting)blocked Will not pass data in either direction RF Station Configuration Operating Mode Normal Mode RF Transmit Status -> unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 59Setting the Link Monitor PeriodThe Link Monitor Period determines the ratio of test data to message data that is sent when you run the link monitor test. The higher the period number, the smaller the ratio of test data to message data. The following diagram shows the ratios of test data to link dataLink Monitor Period SettingsSee Performing Link Monitor Test (Normal Mode), page 52 for information about running the Link Monitor test. ➧ To set Link Monitor Period1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.Period SettingTest Msg123Test Msg MsgTest Msg Msg Msg50% (1/2)33.3% (1/3)25% (1/4) Packet Ratio(Test/Link) Test = test dataMsg = message data RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) -> 1 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Configuration60 AWE 120-24 Installation & Configuration Guide2. Select Link Monitor Period and press Enter. The data field highlights.3. Type the period setting (0=OFF, 1-10000)4. Press Enter. The test starts as soon as a non-zero value is entered.5. Press Esc to exit to the Main Menu.Setting Maximum Remote Distance (Base Station Only)The Maximum Remote Distance setting is used to optimize dynamic polling by compensating for time delays caused by long distances between the sending unit and the receiving unit.➧ To set the maximum remote distance1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select Maximum Remote Distance and press Enter. The data field highlights.3. Press the arrow keys to set the distance of the furthest remote unit (5 km increments are used).4. Press Enter.5. Press Esc to exit to the Main Menu.! ImportantIn the base unit, the Maximum Remote Distance should always be set to the distance between the base and the farthest remote. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer (1-1000)mins 5 Base Station Only Parameters Maximum Remote Distance -> 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 61Setting Link Monitor Remote Station RankWhen you run the Link Monitor Test from a base station, you need to specify the rank (ID number) of the remote that you want to test. When you run the link monitor test from a remote, there is only one base, so the rank number does not need to be entered.➧ To set the link monitor remote station rank1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select Link Monitor Remote Station Rank and press Enter. The data field highlights.3. Type the station rank (ID#) of the remote to test.4. Press Enter.5. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0-OFF, 1-10000) 0 Test Mode Timer Minutes (1-1000) 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank -> 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Configuration62 AWE 120-24 Installation & Configuration GuideAdjusting Throttling (Remote Station Only)Throttling enables you to control the rate that data passes though a remote, so data throughput can be adjusted to make the data rate compatible with the rest of the system. Throttling restricts the flow of data from air to wire or from wire to air. When throttling is enabled, the amount of data passed is equal to the throttling level times 64 kbps, to a maximum of 6.4 Mbps. Throttling applies to both down link and up link traffic, so a throttle level of 1 means the unit will pass 64 kbps in each direction. A throttle level of 50 means that 50 x 64 kbps will be passed. When throttling is disabled, the unit uses the maximum available bandwidth. The default setting is to disable throttling.➧ To enable throttling1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select Throttle Enable and press Enter. The data field highlights.3. Scroll to select on or off, and press Enter.4. Press Esc to exit to the Main Menu.➧ To set the throttle level1. Set Throttle Enable to on, then select Throttle Level from the RF Conguration menu and press Enter. The data field highlights.2. Type a value from 1–100 to select the data throughput rate (where 1 = 1 x 64 kbps, 100 = 100 x 64 kbps) and press Enter. The data throughput in kbps is displayed beside the throttle level.3. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer (1-1000)mins 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable -> off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 63Setting Tx Power Automatically (Remote Station Only)Link Monitor/Output Power can be used to adjust a remote unit’s Tx power automatically. Three modes of operation are available: Normal mode is used to run Link Monitor normally. Link Monitor tests the link and collects statistical information about link operation, which can be viewed with the Link Statistics screen. Automatic Output Power runs Link Monitor through one "cycle" and automatically adjusts Tx power based on measurements taken during that cycle. Power is automatically reduced by the unit if Tx power is too high and is increased if it is too low. Dynamic Output Power runs Link Monitor in the background and periodically adjusts Tx power in response to the current radio conditions and environment. The amount of bandwidth (test overhead) required by Link Monitor is set with Link Monitor Period. (See Setting the Link Monitor Period, page 59).How Automatic Output Power Adjustment WorksLink Monitor tests a link by sending test packets and measuring the link’s performance (in terms of BER and power). The results of the test can be used to automatically adjust Tx power. Automatic power level adjustment is explained below. The maximum Tx power output (factory-set power ceiling) of a unit is set at factory and cannot be changed with configuation menus (for more information see Unit Identification, page 34). A user-specified power ceiling or limit can be set by the user using User Output Power Adjust Ceiling on the RF Station Configuration screen. The user-specified ceiling is the maximum Tx power level with which the user allows the unit to operate.The noise floor is the power level below which signal quality deteriorates rapidly due to random radio interference causing the link to not function properly. Base Tx Power level is the starting power level or "base" from which the adjustment is made. The operating Tx Power level is the sum of the base power level and the signal margin (fade margin)—the signal margin is added to the Tx base power level and moves with it. Both the base power level and the signal margin can be adjusted to reach the operating power level.When a unit adjusts the power level, it begins at the base power level and runs Link Monitor. If no bit errors occur and the power level is satisfactory, the unit automatically drops the Tx power level by one dB and runs Noise FloorFactory-set Power CeilingUser-specified Power Ceiling(Base Tx Power Level + Signal Margin)Signal Power Signal MarginPower Level Base Tx PowerLevelAutomatic power adjustment moves power level up and downOperating Tx Power Level 0
Configuration64 AWE 120-24 Installation & Configuration GuideLink Monitor again. If no bit errors occur again and power level is adequate, it once again drops the Tx power level by a dB and runs Link Monitor. This process repeats until a power level occurs where no bit errors occur and power level is satisfactory. This level is the minimum power level required for operation and is displayed numerically by Current Output Power Level Adjust on the screen. When the unit reaches this level, Tx Power (seen on the Radio Module Configuration screen) is automatically reset to the new level. (Below this level, BER and power levels are unsatisfactory for data communication). If the intitial base Tx power level is below the noise floor, a unit will automatically increment the power level by one dB until the BER and power level become satisfactory.In short, two methods of automatic power level adjustment are available: automatic and dynamic.Automatic Power Output: Power is monitored and automatically adjusted once when the unit is powered up or rebooted.Dynamic Output Power: Power is monitored and automatically adjusted periodically during regular operation. Some bandwidth for data is lost due to test packet overhead—the amount of overhead is determined by setting the Link Monitor Period (see Setting the Link Monitor Period, page 59).Note: Tx Power Adjust on the Radio Module Configuration screen is used to set the initial or base Tx power level. After the level is set automatically, this value is automatically reset by the unit. The reset value can be read by viewing Current Output Power Level Adjust on the RF Station Configuration screen, or by viewing Tx Power Level Adjust on the Radio Module Configuration screen.➧ To set the link monitor/ output power1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer (1-1000)mins 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power -> Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 652. Select Link Monitor/Output Power and press Enter. The data field highlights.3. Scroll to choose Normal, Auto Power Output or Dynamic Output Power and press Enterwhere4. Press Esc to exit to the Main Menu.Normal Tests packets are sent and received across an RF link and link statistics are displayed (view with Link Monitor Statistics screen). This mode can be used for both base and remote units.Automatic Output PowerRemote-only mode in which a remote unit’s transmit power is adjusted once after startup or reboot. While in this mode, Link Monitor statistics display "N/A". After the transmit power is determined, the unit automatically resets to Normal Mode.Dynamic Output PowerRemote-only mode in which a remote unit’s transmit power is continuously monitored and adjusted to accommodate RF link disturbances. While in this mode, Link Monitor statistics display "N/A".
Configuration66 AWE 120-24 Installation & Configuration GuideAdjusting User Output Power Ceiling (Remote Station Only)The output power ceiling is used to limit the maximum output transmit power of a remote unit. The value entered is the amount of attenuation in dB below the factory-set power ceiling.➧ To adjust the user output power ceiling1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select User Output Power Adjust Ceiling and press Enter. The data field highlights.3. Press the down arrow key to scroll through the list. Select a values from 0 db (no power attenuation)to –31 dB (maximum power attenuation) and press Enter.4. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer (1-1000)mins 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -> -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
RF Station ConfigurationJUL 2001 Rev 03 67Setting Signal Margin (Remote Station Only)The signal margin is the output transmit power (measured in dB) desired for a remote unit with respect to the base station’s receive sensitivity threshold). This value is used by Output Power Control test modes to set the transmit power.For example, if set to 10 dB, an Output Power Control test mode will attempt to adjust the output transmit power to a level at which the received signal at the base station is 10 dB greater than receiver sensitivity threshold.➧ To set the signal margin1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.2. Select Signal Margin and press Enter. The data field highlights.3. Enter the ceiling value (from 6 to 31 dB) and press Enter.4. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer (1-1000)mins 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Configuration68 AWE 120-24 Installation & Configuration GuideViewing Current Output Power Level AdjustCurrent Output Power Level Adjust is a view-only item. It displays the current Tx power level, which was initially set using Tx Power Level Adjust (see Adjusting the Tx Power Level, page 78) and which is set automatically when performing an Automatic Output Power adjustment or Dynamic Output Power adjustment (see Setting Tx Power Automatically (Remote Station Only), page 63).➧ To view the current output power1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed..2. Read the current power level.3. Press Esc to exit to the Main Menu. RF Station Configuration Operating Mode Normal Mode RF Transmit Status unblocked Link Monitor Period (0=OFF, 1-10000) 0 Test Mode Timer (1-1000)mins 5 Base Station Only Parameters Maximum Remote Distance 5 Km Link Monitor Remote Station Rank 1 Remote Station Only Parameters Throttle Enable off Throttle Level (1-100) 10 (640 kps) Link Monitor/Output Power Dynamic Output Power User Output Power Adjust Ceiling -5 dB Signal Margin (6-31) dB 6 Current Output Power Level Adjust -21
Radio Module ConfigurationJUL 2001 Rev 03 69Radio Module ConfigurationThe Radio Module Configuration menu is used to change several key parameters, including station type, station rank and security passwords. Because these settings can affect service, they are changed in three progessive stages: new, current, and flash. (New and current are for temporary storage, while flash is for long-term storage.) The general procedure for changing settings with the Radio Module Configuration menu follows.1. View the current Radio Module Configuration menu. See Viewing the Radio Module Configuration, page 69.2. Select Config Test Minutes. To begin, enter a time of 15–20 minutes. See Setting Config Test Minutes, page 71. 3. Select a parameter and, if necessary, change the value in the "New" column.4. After making changes, select Reboot New RF Configuration and press Enter. The unit reboots and the "New" settings become the "Current" settings of the unit. See Rebooting and Saving RF Module Configurations, page 86. 5. If the unit operates as expected, you can save the current settings to "Flash". See Rebooting and Saving RF Module Configurations, page 86. If current settings do not operate as expected, do not save them to "Flash". Change the current settings or wait for the Config Test Minutes time period to expire. At expiry, the unit will automatically reboot and revert to the last-saved flash memory settings. See Rebooting and Saving RF Module Configurations, page 86.Viewing the Radio Module Configuration➧ To view the current radio module configuration1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration70 AWE 120-24 Installation & Configuration Guide2. Press Esc to exit to the Main Menu.Station Type Defines unit as either a base station or a remote stationStation Rank For a base station, the number of remotes that the base pollsFor a remote, the polling ID # of the remoteCenter Frequency Defines the channel the unit uses to transmit and receiveSecurity Password nPassword(s) for the unitScrambling Code Code used to scramble messagesAcquisition Code Code used to reduce system-induced interferance in a multi-sector systemConfig Test Minutes Amount of time before unit returns to its pre-configuration stateTx Power Level Adjust Reduces the power below maximum Tx power by the specified amount in dB. This parameter determines the initial Tx power level. The value resets automatically when automatic power level adjustment is made. See Setting Tx Power Automatically (Remote Station Only), page 63.Repeater Mode Sets up a base station to pass data to and from remotes rather than function as a control unitSystem Symmetry Type Defines the amount of priority the base unit has when polling the remotesDynamic Polling Level Number of polling cycles that inactive remote units are ignored by the base stationRemote Unit RF Group Identifies the goup number of the remote unitRemote units with same RF group number can communicate directly with each otherReboot new RF configurationReboots unit to save New settings as Current settingsSave Current Configto FlashStores current settings in flash memory
Radio Module ConfigurationJUL 2001 Rev 03 71Setting Config Test MinutesWhen changing Radio Module Configuration settings, you may enter settings that cause a unit or system to not function as expected. If this happens, you can return to the last-saved settings if you first set the Config Test Minutes test period. When this test period expires, the unit automatically reboots and returns to its last-saved flash memory settings. The time period can be fixed from 1 to 120 minutes. Tip: To begin, enter a time period of 30 minutes. If the time period is too short, you will not have enough time to make configuration changes and save them to flash ROM. If the time period is long, you will have to wait a long time before the unit automatically reboots and restores the settings to the original flash ROM state.➧ To set the config test timeout period1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Config Test Minutes and press Enter. The data field highlights.3. Type the number of minutes (1-120) and press Enter. The number of minutes is stored in the New state.4. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit will now use the current settings to operate, for the length of time specified by the Current Test Minutes. 5. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 6. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration72 AWE 120-24 Installation & Configuration GuideSetting the Station TypeEach unit must be set up as either a base station or a remote station. In a given system there is only one base station, but there can be numerous remote stations. (A base station can also be set up as a repeater base.) You define the unit as a base station or remote unit by setting the Station Type.➧ To set the station type1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Station Type and press Enter. The data field highlights.3. Scroll to select the Station Type (base station or remote unit).4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" station type for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 73Setting the Station RankStation Rank is defined two different ways, which depend on the station type: For a base station, rank is the total number of remotes that a base will poll. For a remote unit, rank is a unique polling ID number that identifies a remote to a base station.When it polls remotes, the base station begins polling at the remote with rank number 1, then proceeds to the remote with rank number 2, then goes to the remote with rank number 3, and so on. The base continues polling remotes until it reaches the remote with the highest rank number. The base then repeats the polling cycle.Note: Dynamic polling gives you some control over the polling process. See Setting Dynamic Polling Level (Base Station Only), page 82. ➧ To set the station rank1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Station Rank (1-1000).3. Type the rank (a number from 1–1000) of the station.4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" rank for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration74 AWE 120-24 Installation & Configuration GuideSetting the Center FrequencyThe center frequency defines the channel a unit uses to transmit and receive. To ensure communication between units, all units in a system must have the same center frequency value.➧ To set the center frequency1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Center Frequency and press Enter. The data field highlights.3. Scroll to select the RF center frequency to apply to all units in the network.4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" center frequency for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 75Setting Security PasswordsPasswords are always exchanged between units when they communicate with each other. A set of five security passwords is assigned to each unit. The set of passwords must be exactly the same for all units in a system. (A convenient, but non-secure option is to set all passwords to "0".) The more password levels you use, the greater the security of your system. For example, using a set of five different passwords will result in a highly secure system. All units in the same network must use the same set of security passwords.➧ To set security passwords1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Security Password 1 and press Enter. The data field highlights.3. Enter a password in Hex code and press Enter. The password is stored in the New state.4. Select Security Password 2 and press Enter. The data field highlights.5. Enter a different password in Hex code and press Enter. The password is stored in the New state.6. Repeat this process until you complete all five password levels.7. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" set of passwords for the amount of time specified by the Current Test Minutes.8. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 9. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration76 AWE 120-24 Installation & Configuration GuideSetting the Scrambling CodeTo protect the privacy of a wireless link, units can scramble messages—the message content is rearranged so that messages are difficult to read by unintended receivers. The scrambling code determines how messages are scrambled by a unit. Only units with the same scrambling code as the originating unit can de-scramble and read the message. The scrambling code can be 0-32 bits long. All units in the same wireless network must have this setting set to the same value.➧ To set scrambling codes1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Scrambling Code and press Enter. The data field highlights.3. Type the code.4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" scrambling code for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 77Setting the Acquisition CodeAn acquisition code is a unique code contained within the preamble of a transmitted message. Units search the air for messages that begin with a particular acquisition code. Messages without the correct code are treated as interference and are rejected by a unit. Messages with the correct code are accepted and processed. Acquisition codes serve to isolate units from each other, especially when several units operate in close proximity or at the same frequency in a multiple-sector or multi-cell environment. All units in the same network must have the same acquisition code in order to communicate with each other.➧ To set the acquisition code1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Acquisition Code and press Enter. The data field highlights.3. Type the Acquisition code (0-15).4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" acquisition code for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration78 AWE 120-24 Installation & Configuration GuideAdjusting the Tx Power LevelTx Power Level Adjust enables you to reduce the transmit power output level by up to 31 dB. For example, selecting a value of 0 sets the transmit power to maximum power, while selecting a value of –31 sets the transmit power to 31 dB below maximum power. The value is the intial Tx power level and is reset automatically when automatic power level adjustment is performed. See Setting Tx Power Automatically (Remote Station Only), page 63.➧ To adjust the Tx power output level1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Tx Power Level Adjust and press Enter. The data field highlights.3. Scroll through the list and press Enter to select a power attenuation level. Choose a value between 0 and –31, where 0 means no Tx power attenuation and –31 means Tx power is attenuated by 31 dB.4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-58 Login menu is displayed. The unit now runs using the "Current" acquisition code for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 79Setting a Base to Repeater Mode (Base Station Only)When repeater mode is enabled at a base station, the base acts as a repeater in addition to performing its normal base station functions. As a repeater, the base station receives incoming messages from remotes, stores them and broadcasts them to all remotes within RF range. Remotes belonging to the same RF group (with the same RF Group number) can communicate via the repeater. (See Setting Remote Unit RF Group, page 83 for information about RF groups.) The following diagram expains the process.Repeater ModeWhen repeater mode is disabled (Repeater Mode = off), the base station functions normally (it polls remotes and links the various segments of the network). By definition, Repeater Mode does not apply to units of RF Group = 0.Wired NetworkWired NetworkRemoteWired NetworkRemoteRF Group nWired NetworkMessage is sent fromoriginating remoteRank = 4Message is storedand broadcastto all remotes inMessage isreceived bydestination remote123n = 1– 63RF Group nn = 1–63RF Group nn = 1– 63RF Group nn = 1– 63BaseRemoteRemoteRank = 1Rank = 2 Rank = 4Rank = 3(number of remote units)RF Group nRepeater Mode = on(ID # of remote)(ID # of remote) (ID # of remote)(ID # of remote)
Configuration80 AWE 120-24 Installation & Configuration Guide➧ To set base to repeater mode1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Repeater Mode and press Enter. The data field highlights.3. Scroll to select the desired setting where:4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" repeater mode for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu.off Base unit does not re-transmit messages—default settingon Base unit re-transmits messages received from one remote to other remotes in same RF group Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 81Setting System Symmetry Type (Base Station Only)System symmetry type fixes the priority of the base unit when it polls remotes. The default "asymmetric" setting alots the base one time slot for each time a remote is polled—this setting is useful when the base is the access point to a large network. The "symmetric" setting alots the base one time slot per polling cycle. A symmetric system gives the base station the same polling priority as a remote unit.➧ To set system symmetry type1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select System Symmetry Type and press Enter. The data field highlights.3. Scroll to the desired setting where:4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" symmetry type for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu.asymmetric Base unit has higher priority than remotes: the base unit has one time slot after every remote time slot. Default settingsymmetric Base unit has the same priority as all remotes: the base unit has one time slot for every polling cycle Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration82 AWE 120-24 Installation & Configuration GuideSetting Dynamic Polling Level (Base Station Only)Dynamic polling improves system performance by reducing overhead due to idle remote units. A base station automatically learns which remote stations are active and which are idle. The base station waits a brief time period for a remote to respond to a poll. If the remote doesn’t respond within the time period, the base considers the remote to be idle. (This process is called dynamic time allocation or DTA.) Idle remote units are ignored by the base station for the number of polling rounds entered in the Dynamic Polling Level field. The higher the dynamic polling level, the more efficient the throughput and the longer it takes to move a subscriber from an inactive state to an active state. Dynamic Polling improves system performance whenever there is more than one remote. When there are a large number of remotes system performance improves significantly.Note: Polling level is set only at the base station.➧ To set the dynamic polling level1. From the Main Menu, select RF Station Configuration and press Enter. The RF Station Configuration menu is displayed.1. Select Dynamic Polling Level and press Enter. The data field highlights.2. Type the desired polling level (1-60).3. Press Enter. The new setting is displayed in the "New" column.4. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" dynamic polling level for the amount of time specified by the Current Test Minutes.5. To save the current setting(s) to flash memory, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 6. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 83Setting Remote Unit RF GroupThe RF Group setting enables you to determine which units in a system can communicate with each other. For example, in a system consisting of a base station and associated remotes, you can: 1) assign units to different groups so that only members of the same group can communicate with each other and the base (an open system); 2) isolate remotes so they cannot talk to other remotes, but can talk only to the base (a closed system); 3) assign remote units to groups and configure the base station as a repeater (a closed system); and 4) combine closed units with open units in the same system. These configurations are explained below.Remote units with the same RF group number (RF Group = 1– 63) can communicate directly with each other and with the base station (if there is a line-of-sight RF path between units and base station Repeater Mode = off.) An example is a company where the Human Resources department needs direct access to the Payroll department, but the two departments must be isolated from other departments. Since HR and Payroll are in the same RF group 14, they can talk directly to each other, but they cannot talk directly to other groups such as R&D, which belongs to RF Group 20.Example 1: Open SystemRemote units configured as RF Group = 0 are independent, closed units. Closed units cannot talk directly to each other, they can only talk directly to the base station. This setup acts to isolate remote units and the associated LANs from each other. Example 2 shows a situation where independent companies are connected wirelessly to a single base station and communication between the companies is prevented.Example 2: Closed SystemRF Group = 14BaseRemoteRF Group = 14RemoteRepeaterMode = offRF Group = 20RemoteRF Group = nn = 1 – 63Human ResourcesPayrollR&DRemoteRF Group = 0RF Group = 0RemoteBaseRepeaterMode = offRemoteRF Group = 0RF Group = 0Company 3Company 2Company 1
Configuration84 AWE 120-24 Installation & Configuration GuideA repeater is used to bypass obstacles that block the RF path (for example, a mountain). When a base station is set to repeater mode (Repeater Mode = on), it can pass data from remotes in an RF group to other remotes in the same group. A system with a repeater is a closed system. Example 3 shows a repeater with four remotes. All the remotes are in the same RF Group 4, so they can talk to each other via the repeater base.Example 3: Repeater Configuration (Closed System)Closed remote units (RF Group = 0) can be combined with open remote units (RF Group = non-zero) within the same system. In this case each group in the system behaves according to its RF Group characteristics: closed remotes could communicate only with the base, remotes with the same (non-zero) group number could communicate with each other, and remotes with different (non-zero) group numbers could not communicate with each other. A base or repeater would not pass packets originating from a closed remote.The following table summarizes the first three situations.Repeater Mode (Base only)RF Group(Remote only)SystemType System CharacteristicsRepeater Mode = off1–63 Open Remotes can communicate directly with the base and each other if remotes that have the same non-zero RF group number (if a LOS RF path can be established)Repeater Mode = off0 Closed Remotes can communicate only with the base station—they cannot talk to each otherRepeater Mode = on1–63 Closed Remotes cannot communicate directly with each other, they can only communicate via the repeater base with other remotes that have the same RF group numberClosedRemote RemoteBaseSystemRepeaterMode = onRF Group = 4RF Group = 4RemoteRF Group = 4RemoteRF Group = 4 n = 1 – 63 n = 1 – 63 n = 1 – 63 n = 1 – 63MountainNo direct communcation possible due to obstacle
Radio Module ConfigurationJUL 2001 Rev 03 85In a mixed system, each RF group behaves according to the RF Group charactersitics assigned to it (0 = closed , 1–63 = open; same non-zero group number = communication, different non-zero group number = no communication).➧ To set remote unit RF group1. From the Main Menu, select RF Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Remote Unit RF Group and press Enter. The data field highlights.3. In the Remote Unit RF Group entry field, type the RF group number, using the following table as a guide.4. Press Enter. The new setting is displayed in the "New" column.5. Select Reboot New RF Configuration and press Enter. The unit reboots and the AWE 120-24 Login menu is displayed. The unit now runs using the "Current" remote unit RF group for the amount of time specified by the Current Test Minutes.6. To save the current setting(s) to FLASH, log in, go to the Main Menu, and select Radio Module Configuration, Save Current Config to Flash. See Rebooting and Saving RF Module Configurations, page 86. 7. Press Esc to exit to the Main Menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration86 AWE 120-24 Installation & Configuration GuideRebooting and Saving RF Module ConfigurationsBecause changes to Radio Module Configuration settings can affect service in a wireless system, changes are made in three progessive stages: new, current, and flash.A reboot of a unit is required to save New settings as Current settings. If Current settings are valid (and do not disrupt the system), they can be saved to Flash memory. If the changes disrupt the system, the original configuration will be restored automatically when the Config Test Minutes period expires.➧ To reboot a unit1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Reboot New RF configuration and press Enter. The unit reboots with the with new settings and with the Config Test Minutes timeout period in effect. The new settings can be viewed in the "Current" column of the Radio Module Configuration menu. The old, last-saved configuration remains in Flash memory. If the configuration is the one you want and the unit operates as intended, you can save the current changes to "permanent" flash memory by selecting Save Current Config to Flash from the Radio Module Configuration menu. When you save the current settings to "Flash" the new settings overwrite the old flash memory settings.New Intended configuration changes. Temporary memory storage.Current Configuration actually running on the unit. Temporary memory storage.Flash Configuration stored in FLASH memory. Long-term memory storage. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Radio Module ConfigurationJUL 2001 Rev 03 87➧ To save current configuration to FLASH1. From the Main Menu, select Radio Module Configuration and press Enter. The Radio Module Configuration menu is displayed.2. Select Save Current Config to Flash.3. Press Enter. The current configuration is saved to flash memory. A reboot is not required. The new flash memory values are displayed in the "Flash" column of the Radio Module Configuration menu. Radio Module Configuration New Current FlashStation Type Remote Unit Remote Unit Remote UnitStation Rank (1-1000) 1 1 1Center Frequency 2.4400 GHz 2.4400 GHz 2.4400 GHzSecurity Password 1 (Hex) 1 1 1Security Password 2 (Hex) 10 10 10Security Password 3 (Hex) 100 100 100Security Password 4 (Hex) 1000 1000 1000Security Password 5 (Hex) 10000 10000 10000Scrambling Code (Hex) 0 0 0Acquisition Code (0-15) 0 0 0Config Test Minutes (1-120) 30 30 30Tx Power Level Adjust -> 0 dB 0 dB 0 dBBase Station Only ParametersRepeater Mode off off offSystem Symmetry Type Asymmetric Asymmetric AsymmetricDynamic Polling Level (1-100) 1 1 1Remote Station Only ParametersRemote Unit RF Group (0-63) 0 0 0Reboot New RF configuration Press Enter to ExecuteSave Current Config to Flash Press Enter to Execute
Configuration88 AWE 120-24 Installation & Configuration GuideRF/Ethernet StatisticsEthernet and RF statistics are useful for troubleshooting, monitoring link performance, and measuring throughput. Ethernet and RF statistics are cumulative and increment until reset. The window is view only. See Resetting Radio and Ethernet Statistics, page 102 for information about resetting RF/Ethernet statistics.Viewing RF/Ethernet Statistics➧ To view RF and Ethernet statistics1. From the Main Menu, select RF/Ethernet Statistics and press Enter. The RF/Ethernet Statistics window is displayed. The window is view only. RF/Ethernet StatisticsEthernet Receive Statistics Ethernet Transmit StatisticsTotal Packets Received 0 Total Packets Transmitted 0Packets For Local Host 0 Packets From Local Host 0Receive Errors 0 Packets Dropped 0Packets Dropped 0 Total KBytes Transmitted 0Packets Discarded 0 Broadcast KBytes Transmitted 0Total KBytes Received 0Broadcast KBytes Received 0RF Receive Statistics RF Transmit StatisticsTotal Packets Received 0 Total Packets Transmitted 0Packets For Local Host 0 Frames From Local Host 0Packets Dropped 0 Packets Dropped 0Packets Discarded 0RF Super Frame Rx Statistics RF Super Frame Tx StatisticsSuper Frames Received 0 Super Frames Transmitted 0Receive Overrun Errors 0Frame Control Word Errors 0Header Checksum Errors 0 Throughput StatisticsPacket Control Word Errors 0 Ethernet-to-RF Throughput 0Super Frame Length Errors 0 RF-to-Ethernet Throughput 0
RF/Ethernet StatisticsJUL 2001 Rev 03 89.Ethernet ReceiveTotal Packets Received Number of Ethernet packets from Ethernet connectionPackets For Local Host Number of Ethernet packets received from the Ethernet connection which were destined for the AWE 120-24 unit’s TCP/IP stackReceive Errors Number of Ethernet packets received with errors, for example, runt (smaller than 64 bytes), jabber (larger than 1518 bytes) or overflow errorPackets Dropped Number of Ethernet packets dropped because the wireless link is at capacityPackets Discarded Number of Ethernet packets discarded as the result of filteringTotal KBytes Received Total number of kbytes received from the Ethernet port (broadcast and non-broadcast packets)Broadcast KBytes ReceivedNumber of kbytes received from the Ethernet port (broadcast packets only)RF ReceiveTotal Packets Received Number of Ethernet packets received over RFPackets For Local Host Number of Ethernet packets received over RF and destined for the local hostPackets Dropped Number of Ethernet packets dropped because the wireless link is at capacityPackets Discarded Number of Ethernet packets discarded as the result of filteringRF Super Frame RxSuper Frames Received Number of super frames receivedReceive Overrun Errors Number of errors caused by receive buffer overrunFrame Control Word ErrorsNumber of errors caused by frame control word problemsHeader Checksum Word ErrorsNumber of errors caused by receiving an invalid header checksumPacket Control Word ErrorsNumber of errors caused by packet control word problemsSuper Frame Length ErrorsNumber of errors caused by receiving an invalid super frame length
Configuration90 AWE 120-24 Installation & Configuration Guide2. Press Esc to exit to the Main Menu.Ethernet TransmitTotal Packets TransmittedNumber of Ethernet packets transmitted onto theEthernet connectionPackets From Local Host Number of Ethernet packets transmitted onto the Ethernet connection which originated from the AWE 120-24 unit’s TCP/IP stackPackets Dropped Number of Ethernet packets not transmitted due to some error, for example, unable to transmit within 15 retries or underflow errorTotal KBytes Transmitted Total number of kbytes transmitted from the Ethernet port (broadcast and non-broadcast packets)Broadcast KBytes TransmittedNumber of kbytes transmitted from the Ethernet port (broadcast packets only)RF TransmitTotal Packets TransmittedNumber of Ethernet packets transmitted over RFFrames From Local Host Number of Ethernet packets transmitted to RF from the local hostPackets Dropped Number of packets dropped because of RF problemsRF S. F. TxSuper Frames Transmitted Number of super frames transmittedThroughputEthernet-to-RF ThroughputCurrent data rate measured from wire to airResolution = 1 secondRF-to-Ethernet ThroughputCurrent data rate measured from air to wireResolution = 1 second
System SecurityJUL 2001 Rev 03 91System SecurityThe System Security menu is used to control access to a AWE 120-24 unit, including the following.• Restrict access to a unit’s Main Menu with passwords• Restrict SNMP read and write access with SNMP Community Name• Enable or disable remote access via Ethernet• Enable or disable remote access via a wireless link• Determine the amount of time that a unit remains idle before it automatically logs outViewing System Security➧ To view system security settings1. From the Main Menu, select System Security and press Enter. The System Security menu is displayed.SNMP Community Name 1 Controls SNMP access to the AWERead access onlySNMP Community Name 2 Controls SNMP access to the AWERead and write accessChange User Password Changes user password to enable access to main menuRead access onlyChange Supervisor PasswordChanges supervisor password to enable access to main menu. Read and write accessEthernet Access to Local HostAllows remote access to unit to change configuration settings via wire link with telnet or SNMP System SecuritySNMP Community Name 1 -> publicSNMP Community Name 2 netmanChange User Password Press Enter to change passwordConfirm User Password Press Enter to confirm passwordChange Supervisor Password Press Enter to change passwordConfirm Supervisor Password Press Enter to confirm passwordEthernet Access to Local Host onWireless Access to Local Host onAuto Logout Minutes (1-120) 10
Configuration92 AWE 120-24 Installation & Configuration Guide2. Press Esc to exit to the Main Menu.Wireless Access to Local HostAllows remote access to unit to change configuration settings via RF link with telnet or SNMPAuto Logout Minutes Maximum time the system can remain idle before the configuration menus close and the Login menu reappears
System SecurityJUL 2001 Rev 03 93Assigning Community NamesCommunity names can be used to control SNMP access to the AWE unit. Community Name 1 has read only access, and Community Name 2 has both read and write access. An SNMP manager can access and configure any AWE unit on the network as long as the unit has the correct community names and remote access is enabled (see Allowing Remote Access and Configuration, page 96).➧ To assign community names1. From the Main Menu, select System Security and press Enter. The System Security menu is displayed.2. Select SNMP Community Name 1.3. Type in name. (Valid community names are assigned using SNMP software.)4. Press Enter. The new name appears in the entry field.5. Select SNMP Community Name 2.6. Type in name. (Valid community names are assigned using SNMP software.)7. Press Enter. The new name appears in the entry field.8. Press Esc to exit to the Main Menu.CAUTIONDefault community names are presented in all Installation and Configuration guides distributed by Wi-LAN. It is the responsibility of the customer to ensure that default community names are changed to unique names at installation. Record all community name changes.Community name Privileges Default valueSNMP Community Name 1 Read publicSNMP Community Name 2 Read and Write netman System SecuritySNMP Community Name 1 -> publicSNMP Community Name 2 netmanChange User Password Press Enter to change passwordConfirm User Password Press Enter to confirm passwordChange Supervisor Password Press Enter to change passwordConfirm Supervisor Password Press Enter to confirm passwordEthernet Access to Local Host onWireless Access to Local Host onAuto Logout Minutes (1-120) 10
Configuration94 AWE 120-24 Installation & Configuration GuideSetting Menu PasswordsYou can use passwords to control access to the Main Menu. The default passwords are user, which allows you to read configuration settings and supervisor, which allows you to change configuration settings.➧ To change the user password1. From the Main Menu, select System Security and press Enter. The System Security menu is displayed.2. Select Change User Password and press Enter. The data field highlights.3. Type the new password and press Enter.4. Select Confirm User Password and press Enter. The data field highlights.5. Re-type the new password and press Enter. The change is saved when appears beside the confirmation field.6. Press Esc to exit to the Main Menu.CAUTIONThe default passwords are printed in all customer documents distributed by Wi-LAN. It is the responsibility of the customer to change the default passwords to unique passwords during installation. Record all password changes. When you restore factory configurations, the login passwords revert to the defaults. System SecuritySNMP Community Name 1 publicSNMP Community Name 2 netmanChange User Password -> Press Enter to change passwordConfirm User Password Press Enter to confirm passwordChange Supervisor Password Press Enter to change passwordConfirm Supervisor Password Press Enter to confirm passwordEthernet Access to Local Host onWireless Access to Local Host onAuto Logout Minutes (1-120) 10Success
System SecurityJUL 2001 Rev 03 95➧ To change the supervisor password1. From the Main Menu, select System Security and press Enter. The System Security menu is displayed.2. Select Change Supervisor Password and press Enter. The data field highlights.3. Type the new password and press Enter.4. Select Confirm Supervisor Password entry field and press Enter.5. Re-type the new password and press Enter. The change is saved when appears beside the confirmation field.6. Press Esc to exit to the Main Menu. System SecuritySNMP Community Name 1 publicSNMP Community Name 2 netmanChange User Password -> Press Enter to change passwordConfirm User Password Press Enter to confirm passwordChange Supervisor Password Press Enter to change passwordConfirm Supervisor Password Press Enter to confirm passwordEthernet Access to Local Host onWireless Access to Local Host onAuto Logout Minutes (1-120) 10Success
Configuration96 AWE 120-24 Installation & Configuration GuideAllowing Remote Access and ConfigurationOne way to control remote access to a unit’s configuration menu is by restricting the type of link that can be used to make remote configuration changes. The default setting is to allow remote configuration changes with both wired and wireless links using telnet or SNMP. However, you can enable or disable the type of link independently with two settings: Ethernet Access to Local Host and Wireless Access to Local Host.Note: Data will pass as usual between both units. These two settings restrict remote access to the unit’s depending on the type of link that exists between the remote terminal and the unit–wired or wireless. Also, you cannot "ping" a unit if the link is disabled.➧ To enable Ethernet and wireless access1. From the Main Menu, select System Security and press Enter. The System Security menu is displayed.2. Select Ethernet Access to Local Host and press Enter. The data field highlights.3. Select the desired setting, where:4. Press Enter. The new value appears in the field.5. Select Wireless Access to Local Hostand press Enter. The data field highlights.6. Select the desired setting where:7. Press Enter. The new value appears in the field.8. Press Esc to exit to the Main Menu.on Enable configuration changes to the unit via the Ethernetoff Disable configuration changes to the unit via the Etherneton Enable configuration changes to the unit via the airoff Disable configuration changes to the unit via the air System SecuritySNMP Community Name 1 publicSNMP Community Name 2 netmanChange User Password Press Enter to change passwordConfirm User Password Press Enter to confirm passwordChange Supervisor Password Press Enter to change passwordConfirm Supervisor Password Press Enter to confirm passwordEthernet Access to Local Host -> onWireless Access to Local Host onAuto Logout Minutes (1-120) 10
System SecurityJUL 2001 Rev 03 97Setting the Auto Logout MinutesYou can specify the maximum time the system can remain idle before the configuration menus close and the Login menu reappears. This feature ensures that the configuration menus close if a user forgets to exit.Note: When the menus automatically timeout, the system may appear to be frozen. Press Enter to view the Login menu, where you can login to the Main Menu.➧ To set the automatic logout timeout period1. From the Main Menu, select System Security and press Enter. The System Security menu is displayed.2. Select Auto Logout Minutes and press Enter. The data field highlights.3. Type the maximum idle time period in minutes that can pass before the configuration menus close.4. Press Enter. The new value appears in the field.5. Press Esc to exit to the Main Menu. System SecuritySNMP Community Name 1 publicSNMP Community Name 2 netmanChange User Password Press Enter to change passwordConfirm User Password Press Enter to confirm passwordChange Supervisor Password Press Enter to change passwordConfirm Supervisor Password Press Enter to confirm passwordEthernet Access to Local Host onWireless Access to Local Host onAuto Logout Minutes (1-120) -> 10
Configuration98 AWE 120-24 Installation & Configuration GuideSystem CommandsSystem image files contain the software that runs the unit. When you first power up the AWE unit, it runs from the factory-image. With the System Commands menu you can choose the image file that a unit uses to power up and the image file that a unit uses when rebooted.Viewing System Command Menu➧ To view system security settings1. From the Main Menu, select System Commands and press Enter. The System Commands menu is displayed. 2. Press Esc to exit to the Main Menu.Default System Image Default image file used at power upReboot a System Image Choose the image from which to rebootReboot Current Image Reboot unit from the current imageRestore Factory Config and RebootRestore unit to default factory configuration and reboots unitReset Radio Statistics Reset RF statisticsReset Ethernet Statistics Reset Ethernet statistics System Commands Default System Image -> FACTORY-IMAGE Reboot a System Image FACTORY-IMAGE Reboot Current Image Press Enter to Execute Restore Factory Config and Reboot Press Enter to Execute Reset Radio Statistics Press Enter to Execute Reset Ethernet Statistics Press Enter to Execute
System CommandsJUL 2001 Rev 03 99Setting Default System ImageThe default image is the image file that a unit uses when it powers up. If you have more than one image saved on a unit, you can choose the default power up file.➧ To set the default image1. From the Main Menu, select System Commands and press Enter. The System Commands menu is displayed.2. Select Default System Image and press Enter. The data field highlights.3. Scroll to select the image to use as the default.4. Press Enter. The name of the new image file appears in the field. The image will be used the next time the AWE is powered up.5. Press Esc to exit to the Main Menu. System Commands Default System Image -> FACTORY-IMAGE Reboot a System Image FACTORY-IMAGE Reboot Current Image Press Enter to Execute Restore Factory Config and Reboot Press Enter to Execute Reset Radio Statistics Press Enter to Execute Reset Ethernet Statistics Press Enter to Execute
Configuration100 AWE 120-24 Installation & Configuration GuideSetting the Reboot System ImageYou can choose the system image that a unit uses when it is rebooted.➧ To choose the reboot image1. From the Main Menu, select System Commands and press Enter. The System Commands menu is displayed.2. Select Reboot a System Image and press Enter. The data field highlights.3. Scroll to select the image to use when rebooting.4. Press Enter. The name of the image file appears in the field. This image will be used the next time the AWE is rebooted.5. Press Esc to exit to the Main Menu.Rebooting the Current ImageThe Reboot Current Image command can be used when the IP address is changed. See Setting the Internet IP Address, page 40.➧ To reboot the current image1. From the Main Menu, select System Commands and press Enter. The System Commands menu is displayed.2. Select Reboot Current Image and press Enter. The AWE reboots using the current image. System Commands Default System Image FACTORY-IMAGE Reboot a System Image -> FACTORY-IMAGE Reboot Current Image Press Enter to Execute Restore Factory Config and Reboot Press Enter to Execute Reset Radio Statistics Press Enter to Execute Reset Ethernet Statistics Press Enter to Execute System Commands Default System Image FACTORY-IMAGE Reboot a System Image FACTORY-IMAGE Reboot Current Image -> Press Enter to Execute Restore Factory Config and Reboot Press Enter to Execute Reset Radio Statistics Press Enter to Execute Reset Ethernet Statistics Press Enter to Execute
System CommandsJUL 2001 Rev 03 101Restoring Factory ConfigurationsIf necessary, you can restore the unit to its original factory configuration. This command puts the unit into a known state, which can help you when troubleshooting, and also provides an easy way to remove custom configuration settings when you deinstall a unit. ➧ To restore the factory configuration1. From the Main Menu, select System Commands and press Enter. The System Commands menu is displayed.2. Select Restore Factory Configuration and Reboot and press Enter. The unit’s configuration is restored to the original factory settings when the unit reboots.! ImportantWhen you restore factory configurations, the login passwords reset automatically to default values (user and supervisor). System Commands Default System Image FACTORY-IMAGE Reboot a System Image FACTORY-IMAGE Reboot Current Image Press Enter to Execute Restore Factory Config and Reboot -> Press Enter to Execute Reset Radio Statistics Press Enter to Execute Reset Ethernet Statistics Press Enter to Execute
Configuration102 AWE 120-24 Installation & Configuration GuideResetting Radio and Ethernet StatisticsThe statistics displayed in the RF/Ethernet Statistics window are cumulative, but can be reset to track specific events and for troubleshooting. (See Viewing RF/Ethernet Statistics, page 88 for information about viewing the statistics). For example, a suspected RF problem can be diagnosed by resetting the radio statistics and simulating the situation suspected of causing the problem.➧ To reset radio statistics1. From the Main Menu, select System Commands.The System Commands menu is displayed.2. Select Reset Radio Statistics and press Enter. The radio statistics in the RF/Ethernet Statistics window reset to 0 when appears beside the enter field.3. Press Esc to exit to the Main Menu.➧ To reset Ethernet statistics1. From the Main Menu, select System Commands. The System Commands menu is displayed.2. Select Reset Ethernet Statistics and press Enter. The Ethernet statistics in the RF/Ethernet Statistics window are reset to 0 when appears beside the enter field.3. Press Esc to exit to the Main Menu. System Commands Default System Image FACTORY-IMAGE Reboot a System Image FACTORY-IMAGE Reboot Current Image Press Enter to Execute Restore Factory Config and Reboot Press Enter to Execute Reset Radio Statistics -> Press Enter to Execute Reset Ethernet Statistics Press Enter to ExecuteSuccess System Commands Default System Image FACTORY-IMAGE Reboot a System Image FACTORY-IMAGE Reboot Current Image Press Enter to Execute Restore Factory Config and Reboot Press Enter to Execute Reset Radio Statistics Press Enter to Execute Reset Ethernet Statistics -> Press Enter to ExecuteSuccess
Link Monitor DisplayJUL 2001 Rev 03 103Link Monitor DisplayViewing Link Monitor StatisticsLink performance statistics such as envelope power, correlation power and bit error rate can be viewed while the link monitor is running. Statistics are only available on the unit running the link monitor test. The window is view only.➧ To view link monitor statistics1. From the Main Menu, select Link Monitor Display. The RF Link Monitor Statistics window is displayed. The window is view only.Link Monitor Rank When run from on the base unit, it is the rank number of the remote unit whose link is being tested.When run from the remote unit, this field is zero, the rank number of the baseBase to Remote BER Bit error rate from the base to the remoteDisplays “N/A” when the link monitor is not runningRemote to Base BER Bit error rate from the remote to the baseDisplays “N/A” when the link monitor is not runningMissed Packet Count Number of missed packetsBase to Remote Env Power Envelope power received at the remote (including noise, measured in dB)Base to Remote Corr Power Correlation power received at the remote (excluding noise, measured in dB)Remote to Base Env Power Envelope power received at the base (including noise, measured in dB)Remote to Base Corr Power Correlation power received at the base (excluding noise, measured in dB) RF Link Monitor Statistics Link Monitor Rank 0 Base to Remote BER N/A Remote to Base BER N/A Missed Packet Count 0 Base to Remote Env Power 0 Base to Remote Corr Power 0 Remote to Base Env Power 0 Remote to Base Corr Power 0
Configuration104 AWE 120-24 Installation & Configuration GuideLogoutLogging OutThere are two ways to log out of the main menu.➧ To log out of the Main MenuFrom the Main Menu, select Logout and press Enter.or1. Press the Esc key on the keyboard until you reach the wilan command line.2. Type logout at the wilan> prompt.3. Press Enter to log out.Setting Operating Mode with the Mode ButtonThe operating mode of a unit is usually selected from the RF Station Configuration menu (see Setting the Operating Mode, page 49). However, operating mode can also be set using the Mode button located on the back panel of the AWE 120-24. When you select an operating mode, the color of the Mode LED indicates the operating mode and the color of the Air LED indicates whether a unit is transmitting, receiving, or listening.The AWE starts up in Normal operating mode and the Mode LED is OFF. The following modes are available.Mode Function Mode LEDNormal Mode Transmit and receive in both directions—normal operating mode See Performing Link Monitor Test (Normal Mode), page 52OFFTransmit Test Transmit onlySee Performing Transmit and Receive Tests, page 55RedReceive Test Receive onlySee Performing Transmit and Receive Tests, page 55GreenRSSI Test Received Signal Strength Indicator. Indicates fade margin data on the Air LEDSee Performing the RSSI Test, page 57OrangeEnter ESC to return to Main Menuwilan> logout
Setting Operating Mode with the Mode ButtonJUL 2001 Rev 03 105Selecting RF Tests with the Mode ButtonYou can use the Mode button at the back of the unit to select and run RF tests. (The other method of running RF tests is with the RF Station Configuration menu. See Setting the Operating Mode, page 49 for more information about running tests from a menu.)➧ To select the operating mode with the mode button1. Press the Mode button once and release it quickly. The unit goes to Transmit Test mode. Mode LED = Red.2. Press the Mode button once and the unit goes to Receive Test mode.Mode LED = Green.3. Press the Mode button once and the unit goes to RSSI Test mode. Mode LED = Orange.4. Press the Mode button once and the unit returns to Transmit Test mode. Mode LED = Red.5. To return to Normal Mode, press the Mode button and release it after at least two seconds. The Air LED and Mode LED both turn orange when the button has been held long enough, and the Mode LED turns OFF.Mode Button OperationNote: If you do not manually return the unit to Normal Mode, the unit will automatically reboot and return to Normal Mode when the end of the test time period time is reached. The test time period cannot be set with the Mode button—you must use the RF Station Configuration menu to set the test mode timer minutes (see Setting Config Test Minutes, page 71).NormalModepressoncepressonceTx Test Rx Testpressoncepressonce RSSITestMode LED =OFF Air and Mode LED turn orangeMode LED =orangepress and holdfor two secondsMode LED =greenMode LED = redpress and holdfor two secondspress and holdfor two seconds
Configuration106 AWE 120-24 Installation & Configuration GuideCommand Line InterfaceYou can perform some basic commands with the command line interface. Type the commands from the prompt.➧ To use the command line interface1. Log in to the AWE unit. The Main Menu is displayed.2. Press Esc. The wilan> prompt appears.3. Type a command after the prompt and press Enter.The following are some commands you can run with the command line interface.Command Action Examplehelp show the following command summary list:menu cls dir del pinglogout exit quitwilan>help menumenu return to the configuration menus wilan>menucls clear the terminal screen wilan>clsdir show a file directory wilan>dirdel delete a file wilan>del sample.txtping ping a remote IP address wilan>ping 198.168.200.5logout log out of the command line interfaceorterminate a remote telnet sessionwilan>logoutexit log out of the command line interfaceorterminate a remote telnet sessionwilan>exitquit log out of the command line interfaceorterminate a remote telnet sessionwilan>quitwilan>
JUL 2001 Rev 03 107TroubleshootingAdministrative Best PracticesBy performing some administrative best practices and preventative maintenance, you can prevent many problems with your system, or become aware of minor problems before they become serious ones. Wi-LAN recommends the following practices.• Maintain the integrity of the system design when adding or changing a system. The introduction of new elements to a system can cause problems unless the network plan is revised to take into account the changes. For example, improper installation of a co-located antenna can add unwanted system interference.• Measure and document system performance at the time of the original installation.• Monitor system performance regularly. Environmental change as well as normal wear and tear on components can affect system performance.• Perform preventative maintenance every 6 months. See Preventative Maintenance and Monitoring, page 28 for information.• After periods of extreme weather, perform link monitor tests to verify the system; inspect towers, antennas, cables and connectors for damage.• Change menu passwords so that only key personnel can reconfigure the system. See Setting Menu Passwords, page 94.• Keep records of recent changes. Especially document the addition of units, hardware and software changes and changes to configuration settings. Configuration errors often cause other problems. Current records can be compared with original installation records and function as a benchmark to help you troubleshoot.• Keep a log of past and present problems and solutions. Store the log on-site, if possible. The log identifies common failure points and fixes.• Before contacting Wi-LAN for customer support, document the symptoms of the problem and the steps taken to diagnose and fix the problem. Record the current configuration of the system.
Troubleshooting108 AWE 120-24 Installation & Configuration GuideTroubleshooting AreasThere are five key areas to be aware of when troubleshooting.Network Integrity: Continued performance and reliability of a network depends upon maintaining the integrity of the network. If you change a network’s design, you will affect its operation. Be aware of recent changes to your network.Quality of RF link: Data communication depends first on the quality of the RF link. If you can establish and maintain a high-quality RF link, then you can be sure the link will carry high-speed data. If the quality of the RF link is degraded for some reason, the quality of the transmitted data will also degrade.Radio Hardware:There are three basic parts to a AWE: radio unit, antenna feed (cable, connectors, surge suppressors, patch cables etc.) and antenna. You can isolate faulty hardware using measurement and/or replacement methods.• Verify the radio unit with diagnostic tests (such as RSSI and link monitor tests), bench test a unit, or replace a unit.• Verify the antenna feed with a Site Master test set. Sweep cables, connectors and lightning suppressors, or exchange these parts for known good parts. • To verify the antenna you can sweep the antenna with the Site Master test set or exchange the antenna.Correct Unit Configuration: Units must be configured correctly, according to the network plan. Configuration errors can cause an inability to communicate or poor performance. The addition of units or changes to your system may require you to change configuration settings.Embedded Software: Operate with a proven software image. Download new software if you suspect that a unit’s software is corrupted.The following chart provides answers to some of the more common problems that can occur when installing and using a AWE wireless ethernet bridge.
Troubleshooting AreasJUL 2001 Rev 03 109Troubleshooting ChartIndication Possible Cause Suggested Corrective ActionsHigh BER Signal strength is too low Perform RSSI test to determine fade marginAlign or change antennas or cablesEnsure LOS between antennasSignal strength is too high Adjust antennasIncrease distance between unitsInterference Change center frequencyIncrease RF powerChange polarization of antennasPhysically isolate antenna from source of interference or change physical location of antennaBad radio (Tx/Rx) Bench test radioExchange radioBad antenna Visually inspect antenna for damageSweep antennaReplace antennaBad cable Visually inspect cableReplace cableBad connectors Visually inspect connectorsReplace cable/connectorsNoisy power supply Replace power supply unitTemperature Determine ambient operating temperature is too high or lowIncrease or reduce ambient temperature.Low signal strength/fade marginBad radio Bench test radioReplace radioBad antenna Visually inspect antenna for damageSweep antennaReplace antennaPoor antenna alignment Use RF diagnostics to re-align antennaBad cable Visually inspect cables/connectorsReplace cable/connectorsBad surge suppressor Use voltmeter to check for open circuitReplace surge suppresso.Incorrect radio configuration Bench test radio to confirm configurationReconfigure radio
Troubleshooting110 AWE 120-24 Installation & Configuration GuideIndication Possible Cause Suggested Corrective ActionsNo Fresnel zone clearance Increase antenna height to obtain clearanceRelocate antennaRemove obstacles to LOS (line of sight)Use repeater base configurationPower supply problems Try a different AC circuitMeasure the power at the AC outletMeasure the output from the power supply unitReplace the power supply unitHigh packet loss Signal strength too low Check for LOS between antennasCheck for obstacles in RF pathCheck for interferenceRealign antennasReplace antennaInterference Change center frequencyIncrease RF powerChange polarization of antennasPhysically isolate antenna from source of interference or change physical location of antennaMultipath interference Realign antennasRelocate radio/antennaTemperature Determine if ambient operating temperature is too high or lowIncrease or reduce ambient temperatureNo communication between unitsConfiguration problems Check the following configuration settings:Rank number–Each unit must have a unique rank number. Base station rank or remote rank may be incorrectAccess code–Only units with same access code can communicateScrambling code–Base station and remote units must use same scrambling codes to decode messagesAcquisition code–All units must have same acquisition code to communicateCenter frequency–Units must have same center frequency to communicate
Troubleshooting AreasJUL 2001 Rev 03 111Indication Possible Cause Suggested Corrective ActionsIP address/subnet mask–Incorrectly configured IP addresses will result in units being unable to communicateCheck that IP addresses are unique for each unit within a subnet and the correct subnet mask is being usedAntenna or cable failure or damageVisually inspect antenna and cables for damageSweep antenna and cablesReplace antenna or cablesPoor link performancePolling sequence Check polling round number. Higher polling round number increase the delay between polls for less active unitsDistance Check the maximum remote distance configuration settingNo LOS Check LOS between antennasExcessive Bit errors and processing errorsMultipath interference–align or relocate antennas or radioSignal absorption Check LOS for obstacles such as treesThrottling level Check if throttling is correctly configured(Control throttling by enabling or disabling throttling and by modifying the throttling index)Center frequency Set units from different systems in the same geographic area to different center frequencies–overlapping wavelengths from other systems will degrade performanceOverpowering co-located unitOutput power from one unit can overpower another co-located radio, even if units operate on different channels—lower unit powerSNMP can’t be activatedIP filtering configured incorrectly for SNMPChange IP filtering to enable SNMPNew configuration will not takeIncorrectly upgraded softwareReload the software image using ftp or install new EPROMsUnable to access main configuration menuInvalid passwords Contact Wi-LAN for information about how to re-enter your systemUnits will need to be reset
Troubleshooting112 AWE 120-24 Installation & Configuration GuideIndication Possible Cause Suggested Corrective ActionsUnit will not operate Faulty unit Bench test unitCorrupt unit software Reload unit softwarePoint-point link is too slowThrottling level Check if throttling is correctly configuredCenter frequency Set units from different systems in the same geographic area to different center frequencies—overlapping wavelengths from other systems will degrade performanceOverpowering co-located unitOutput power from one unit can overpower another co-located radio, even if units operate on different channelsLower the power of the unit
JUL 2001 Rev 03 113Appendix A: Planning Your Wireless LinkTo ensure an effective and reliable wireless link, you first need to perform some network planning. This section provides some general guidelines for planning a wireless link, including the following:• Planning the physical layout of your system• Determining antenna and cable requirements• Determining configuration settings for units• Calculating a link budgetPlanning the Physical LayoutYou need to plan the physical layout of your wireless system.• Determine the number of remotes• Ensure LOS (line-of-sight) exists between units and determine coverage areas• Measure the distance between the base station and each remote unit• Consider the need for equipment shelters, electrical power and environmental requirementsDetermine the Number of RemotesSince the 12 Mbps data rate is shared between all units, the fewer the number of remote units, the faster each wireless link. Although a maximum of 1000 remotes is supported per base station, this number would result in low data rates. Instead, to ensure high data rates, Wi-LAN suggests a standard where 75 remotes can maintain constant 128 kbps communication with a base station. Since it is unlikely that all units will be active at the same time, the total number of remotes for planning purposes can be increased by a factor of three, so that a maximum of 225 (3 x 75) remotes per base station is recommended. This should enable all users to easily achieve 128 kbps performance.Ensure LOS and Determine Coverage AreaEnsure the availability of a clear, LOS (line-of-sight) radio path between base station and all its remotes. Plot the coverage area of each base station on a map, and determine which base station will service which remote unit. Plan some alternate links in case base station coverage areas overlap or if physical obstacles block the radio path to some remotes.
Appendix A: Planning Your Wireless Link114 AWE 120-24 Installation & Configuration GuideMeasure the Distance Between UnitsUse a mapping method or GPS (global positioning system) to measure the distance between the base station and each remote, and check the radio path to identify any obstructions in the site path between the two antennas. Due to the high frequency and low output power permitted in the ISM bands, no obstructions can exist between the base station antenna and the remote unit antennas.Determine Shelter, Power and Environmental Requirements AWE units must be located in a weatherproof environment (a room, EMS cabinet or shelter) with an ambient temperature between 0º and 40º Celsius, and humidity from 0 to 95% non-condensing. Consider building, electrical power, heating and air conditioning requirements.Determining Antennaand Cable RequirementsIf you plan to install a unit indoors, on-site testing is advised because all interiors are unique. You need to consider several factors.• Ensure a clear line-of-sight radio path is available between each remote and its base station.• Ensure that Fresnel zone clearances are met. Identify obstructions that could degrade link performance now and in the future.• Obtain permission from building owners if you intend to install the antenna on a rooftop• Obtain 24-hour access to antennas, cables and equipment• Determine antenna mounting positions: the final position should be selected to enable physical shielding of the antenna at the back and sides from radio interference in the ISM band.• Consider potential wind load and ice loading impact on the antenna• Be aware of possible multipath effects: installing an antenna too close to reflective surfaces can cause signal problems.• Check local regulatory restrictions, such as height, on antenna mast usage in the identified location• Ensure that your antenna is properly grounded and installed according to local electrical codes.• Determine transmission cable lengths and plan cable routes. Minimize the length of the coaxial cable because the longer the cable, the greater the cable losses.• Calculate the fade margin—a minimum 15 dB fade margin is required to ensure the reliability of your wireless link.• Determine Ethernet cable lengths and plan cable routes.More information about antennas is provided in Antenna Basics, page 120.WARNINGCorrect antenna installation is critical to the safe operation and performance of your system. Antennas should always be professionally installed.!
Determining Unit Configuration SettingsJUL 2001 Rev 03 115Determining Unit Configuration SettingsConfiguration settings of units should be determined before installation to ensure easy installation and to reduce installation costs. An information sheet should be prepared for each unit that specifies the basic configuration settings of that unit. • Unit Name• IP Address• Subnet Mask• Station Type• Station Rank• Center Frequency• Security passwords• Scrambling Code• Acquisition Code• Remote Unit RF GroupYou may also specify other settings such as remote distance, IP filtering and throttling.Calculating a Link BudgetProper path planning ensures that each end of the RF link receives sufficient signal power to maintain the desired Bit Error Rate (BER). The effectiveness and reliability of your RF link depends on several factors.• Antenna gain and other characteristics• Distance between antennas and obstructions in the RF path• Location and height of antennas• Length and type of coaxial cable connecting the unit to the antennaThese factors are considered when you calculate your link budget. The calculation indicates, on paper, if your radio link is feasible over a given distance and path and if your RF link meets regulatory requirements. Link budgets are typically expressed in decibels (dB).The following variables are used to calculate the link budget.Variable DescriptionSystem Gain Maximum path loss that the system can support for usable data transmissionEIRP (Effective Isotropically Radiated Power)Power radiating from an antenna taking into account the output power from the transmitter, connector losses, cable losses and antenna gainAntenna Gain Gain of the antenna over a dipole (dBd) or theoretical (dBi)Propagation Loss Signal loss experienced as it travels through the air, expressed in dB
Appendix A: Planning Your Wireless Link116 AWE 120-24 Installation & Configuration GuideEach variable is described below.System GainThe system gain of a radio system is the difference between the transmitted power and a receiver’s sensitivity threshold. The system gain of the AWE 120-24 is calculated as follows.To ensure reliable communications, the system gain plus all antenna gains must be greater than the sum of all losses. For a reliable link, Wi-LAN recommends that the system gain plus all antenna gains be greater than the sum of all losses by 15 dB. This amount is the fade margin.EIRP (Effective Isotropically Radiated Power)EIRP is the power that radiates from an antenna, taking into account the output power from the transmitter, the connector and cable losses, and the antenna gain. Unlike the Tx output power of the devices, EIRP takes account of antenna gain and cable losses. Antennas use directional gain to increase the effective radiated power. Losses such as cable losses reduce the effective radiated power. You calculate the EIRP as follows.Fresnel Radius Distance around line-of-sight that must be clear of obstaclesCable Loss Signal loss experienced as it passes through the coaxial cable, expressed in dBPath Loss Total loss from one end of the path to the other. Includes propagation losses, cable losses and any other losses that impact the system performanceFormula: System Gain = Transmission Power - Receiver Sensitivity @ 10-6 BERVariables: Tx Power = 20 dBmReceiver Sensitivity = –81 dBm (receiver sensitivity @ 10-6 BER)Calculation: 20dBm – (–81) dBm = 101 dBFormula: EIRP = Tx Power (dBm) - Cable Losses (dB) - Connector Losses (dB) + Antenna Gain (dBi)Note: The FCC regulatory body has set the EIRP limit to +36 dBm for point-to-multipoint applications per FCC 15.247(b)(3)(i). For point-to-point applications, the FCC EIRP can be 3 dB higher than +36 dBm for every 1 dB less Tx power below 30 dBm.Industry Canada specifies the EIRP limit to ≤+36 dBm for point-to-multipoint as per RSS-139 Annex B.In accordance with ETS 300-328 for 2.4 GHz RLANs, the maximum EIRP shall not exceed +20 dBm, with a maximum SPD (Spectral Power Density) not exceeding +10 dBm/MHz. Confirmation is required with the relevant European national radio communications local authority for deviations from this specification.Variable Description
Calculating a Link BudgetJUL 2001 Rev 03 117Antenna GainTo ensure the best range and interference suppression, the external antenna should be directional, focusing the radio energy in one direction (toward the other end of the link) rather than onmi-directional. Use of a directional antenna also reduces interference from other systems operating at the same frequency.Note: In some situations, you may want to use an omni-directional antenna in your system design. For example, you would use an omni-directional antenna for a base station with remote sites situated in a 360º path around it.When you select an antenna from the list, pay particular attention to the gain specification. When you select an antenna for a remote station, select an antenna with a gain that provides at least 15 dB fade margin.Antenna gain is specified in either dBi or dBd. When an antenna is specified in dBd, add 2.14 dB to the value to convert it to dBi.Propagation LossPropagation loss is the attenuation (reduction) in RF signal energy as it travels through space. In most wireless systems, losses through space are the major contributor to signal attenuation. When you know the intended installation locations of the base and remote stations, determine the physical line of sight distance and then calculate the RF attenuation as follows:Fresnel ZoneIt is essential that you locate your antennas at maximum above-ground height to ensure that all ground-based obstructions are cleared from the Line of Sight path and the Fresnel Zone.The Fresnel Zone is the expansion of the RF signal radio angles in the vertical plane near the middle of the RF path.Fresnel ZoneFormula: Attenuation (dB) for 2.4 GHz band = 100 dB + 20log(dkm)where:dkm = Distance in Kilometers100 dB = Pathloss Constant in the 2.4 GHz bandFirst Fresnel ZoneLine of SightFresnel RadiusGroundThe maximum Fresnel Radius indicates that this path must be kept clear of obstructions.
Appendix A: Planning Your Wireless Link118 AWE 120-24 Installation & Configuration GuideFor the 2.4 GHz band, the approximate is Fresnel Radius calculated as follows.Cable LossCable and connector losses affect the operation of the wireless link and therefore should be kept to a minimum by minimizing cable lengths and carefully selecting the type of cable. The two primary coaxial cable specifications for the AWE 120-24 are:• Cable must be 50 ohms nominal impedance• Cable must be of a low loss typeThe following is an example of cable loss ratings at 2.4 GHz.Note: When you calculate path loss, you will add 1dB at each end of the link to compensate for connector losses in addition to the cable loss value.Path LossPath loss describes the total RF attenuation throughout the system from Tx antenna to Rx antenna. This includes the losses as the RF signal travels through space plus Tx and Rx cable loss, and Tx and Rx connector loss. Use the following formula to calculate path loss.Once you know the path loss, you can compare the value to the system gain value. If the system gain value is greater than the path loss, the link is feasible. See System Gain, page 116 for more information about system gain.Fade MarginFade margin is the amount by which the system gain plus the total antenna gain exceeds the path loss. As calculated, the fade margin is the number of dB that the received signal strength exceeds the minimum receiver sensitivity. You require some level of fade margin for any wireless system to compensate for RF path fading due to weather conditions or multipath interference.The Wi-LAN recommended fade margin for the AWE 120-24 is a minimum of 15 dB. The sum of the cable losses, connector losses, propagation losses, and the 15 dB required fade margin should be less than the sum of the system gain and antenna gain.Formula: Fresnel Radius (meters) = Cable Type LMR400 LMR600 LDF2-50 LDF4-50A LDF5-50A LDF6-50Loss (dB/meter) 0.22 0.144 0.190 0.128 0.073 0.053Formula: Path Loss = Tx and Rx Cable Loss + Tx and Rx Connector Loss + Propagation LossFormula: Total antenna gain = Tx Antenna Gain + Rx Antenna Gain3.4 dkm dkm 8.12⁄()2+
Link Budget ExampleJUL 2001 Rev 03 119Link Budget ExampleThe values for cable and connector losses in this example are only for illustration. You will need to work these out for your specific installations.Formulas: System Gain + Antenna Gain ≥ Propagation Loss + Desired Fade Margin + Cable Losses + Connector LossesorActual Fade Margin ≥ System Gain + Antenna Gain – Propagation Loss – Cable Losses – Connector LossesandActual Fade Margin ≥ Desired Fade Marginwhere:System Gain = Tx Power – Rx SensitivityAntenna Gains = Tx Antenna Gain + Rx Antenna GainCable Losses = Base Cable Losses + Remote Cable LossesConnector Losses = Base System Connector Losses + Remote System Connector LossesVariables: Desired Fade Margin = 15 dBTx Power = 20 dBmRx Sensitivity = –81 dBmTx Antenna Gain = 21 dBiRx Antenna Gain = 21 dBiPropagation Loss for desired range of 10km = 100 + 20 x log(10) = 120 dBTx Cable Losses (5m LMR400) = 5 * 0.22 = 1.1 dBRx Cable Losses (5m LMR 400)= 5 * 0.22 = 1.1 dBTx Connector Losses = 1 dBRx Connector Losses = 1 dBVariable Calculations:System Gain = 20 - (-81) = 101 dBAntenna Gains = 21 + 21 = 42 dBiCable Losses = 1.1 + 1.1 = 2.2 dBConnector Losses = 1 + 1 = 2 dBActual Fade Margin Calculation:Actual Fade Margin = 101 + 42 – 120 – 2.2 – 2 = 18.8 dBAnalysis: A goal of Actual Fade Margin ≥ 15 dB is achieved.
Appendix A: Planning Your Wireless Link120 AWE 120-24 Installation & Configuration GuideAntenna BasicsAntennas focus and absorb radio energy in specific directions, depending on their design. AWE 120-24 antennas must be tuned to 2.40000 – 2.48350 GHz.This section contains basic information about antenna parameters and how to select and install antennas for use in your wireless system. Antenna characteristics, mounting location, and correct operation of antennas are critical to a wireless link.Antenna ParametersParameter DescriptionGain • Antennas have a gain associated with them, which is a measure of their ability to amplify signals in their tuned band• Antenna gain is achieved by focusing the signal. A higher gain antenna has a more compressed signaldBd vs. dBi • Antenna gain must be measured over a known reference and is often expressed as either dBd or dBi• dBd is antenna gain referenced over a half-wave dipole which is an antenna that has a donut shaped radiation pattern• dBi is antenna gain referenced over an isotropic radiator which is a theoretical antenna that radiates equally in all directions (e.g. the sun)• Wi-LAN references antenna gain in dBi. The conversion factor is 0 dBd = 2.14 dBiBeamwidth • Describes how a signal spreads out from the antenna, and the range of the reception area• Beamwidth is measured between the points on the beam pattern at which the power density is half of the maximum power. This is often referred to as the –3 dB points• A high gain antenna has a very narrow beamwidth and may be more difficult to alignDowntilt or uptilt• Some antennas have either an associated downtilt or an uptilt. The tilt further focuses the signal downward or upward with respect to the horizon• Tilt may be either electrically built into the antenna or achieved mechanically with the mounting gear• Downtilt or uptilt may be required when there is a significant deviation between the elevation of the remote site(s) and the base siteF/B • Front-to-back ratio• Directional antennas focus the signal in a forward path. Achieved by directing the signal in one direction that reduces the signal in the opposite direction• A higher gain antenna typically has a greater F/B ratio
Antenna BasicsJUL 2001 Rev 03 121Implementation ConsiderationsSome key items to consider when selecting and installing antennas for your wireless network follow.XPD • Polarity and Cross-Polarization Discrimination (XPD)• Antennas have an associated polarity, which is the orientation of the radiating element with respect to earth• Antennas are usually described as vertical, horizontal, or circularly polarized. The polarity of all antennas used in a system must be the same• Cross-Polarization Discrimination specifies the signal isolation achieved when the receiving element is perpendicular to the radiating element. Can be advantageous when co-locating radio systemsVSWR • Voltage standing wave ratio• VSWR is the voltage ratio of minimum to maximum across a transmission line• A VSWR of 2.0:1 or less in an antenna is considered effective. Most antennas have a VSWR of 1.5:1• For example, when using a radio with a 4 W output with an antenna VSWR of 1.5:1, the reflected power will be 160 mWItem DescriptionAbsorption • Antennas mounted too close to “soft” objects, such as trees, may experience a reduction in signal strength due to absorption• Absorption is most often encountered in applications installed during the fall or winter months, and the problem does not become evident until the springDiffraction • Diffraction occurs when a radio signal reflects or bounces off of a solid object.• Level of diffraction could lead to connectivity problems if the remaining signal level is too low• Two types of diffraction are shadowing and multipathShadowing • Shadowing is a form of diffraction that is typically caused when antennas are mounted too close to a structure and they lose a portion of the signal lobe due to reflection The receive antenna is in a shadowed area• To minimize shadowing, ensure that there is adequate height above structures when mounting antenna equipmentMultipath Interference• Multipath is a form of diffraction in which the reflected signal arrives at the receiver at different times which confuses the receiver• Multipath may be interpreted as interference by the receive antenna and can result in bit errors and processing delaysParameter Description
Appendix A: Planning Your Wireless Link122 AWE 120-24 Installation & Configuration GuideSelecting AntennasThere are several factors to consider when selecting the right antenna for a wireless application. The following are some initial questions you should ask before selecting an antenna.• What is the operating frequency range?• Will this be a point-to-point or point-to-multipoint application? Ensure that you consider if the application will change in the future?• What are the coverage requirements?• What is the gain requirement?• What is the elevation of the remote site(s) with respect to the base station and will additional downtilt/uptilt be necessary at either the base or remote site to compensate?• Will there be any obstructions in the path?• Will systems be co-located? What polarity will be used?• What are the regional environmental conditions? For example, is there windloading, salt air, excessive moisture, ice buildup etc.?• What is the antenna lifetime expectation?• What are the site and mounting options?• What are the restrictions in the locale regarding the effective radiated power permitted from the antenna?• Will antenna appearance be a factor?Wi-LAN’s Antenna SelectionAntennas should be selected from the following list of Wi-LAN approved antennas.Antenna Description Number Gain (dBi)Rubber Duck 1200-010X XMobileMark Omni 1200-0209 3MobileMark Omni 1200-0203 6MobileMark Omni 1200-0204 9MobileMark Omni 1200-0206 12 Tiltek Omni (Vertical Polarization) 1200-0211 10Tiltek Directional 1200-0310 19Tiltek Directional 1200-0311 21Tiltek Directional 1200-0312 24.5Tiltek Directional 1200-0313 27Tiltek Planar 1200-0314 17
Antenna BasicsJUL 2001 Rev 03 123 The following list of minimum cable lengths required to comply with the EIRP limit set out in FCC part 15, and RSS139 when using antennas of greater gain than 16 dBi, and up to the highest gain of 18.5 dBi (point to multi-point application). These lengths result in at least 3.5 dB of loss at 2.4 GHz.Tiltek Planar 1200-0315 20Tiltek Sectoral 1200-0318 10Tiltek Sectoral 1200-0325 12.5Tiltek Sectoral 1200-0316 10–15Tiltek Sectoral 1200-0317 16Tiltek Sectoral 1200-0319 13–17.5 Tiltek Sectoral 1200-0324 18.5Tiltek HSectoral 1200-0326 11.5Tiltek HSectoral 1200-0327 14Tiltek Shrouded Yagi 1200-0330 11.5Conifer Directional 1200-0304 13Conifer Directional 1200-0307 16Conifer Directional 1200-0308 18Conifer Directional 1200-0309 24 Cable Type Minimum Length (m) LMR 400 16 LMR 600 25LMR 900 37LMR 1200 48 LMR 1700 63 LDF2-50 3/8" 19 LDF4-50A 1/2" 28 LDF5-50A 7/8" 48 LDF6-50 1 1/4" 66 RG58 A/U 3.5 Antenna Description Number Gain (dBi)
Appendix A: Planning Your Wireless Link124 AWE 120-24 Installation & Configuration GuideAntenna Installation FactorsSome factors you should consider when installing antennas into your wireless system are listed below.Factor DescriptionMaximizing the AWE 120-24’s Capabilities• Minimize obstructions in the radio path• Line Of Sight (LOS) is crucial for reliability• Ensure that equipment is installed correctly• Ensure proper grounding, testing, and alignment of antennas• Install in environmental conditions that are suitable for the AWE unit• Select proper antennas and cable for the application• Ensure sufficient gain for the intended applicationSafety • Proper grounding of antenna apparatus in accordance with respective Electrical Code(s) is crucial• Wi-LAN recommends using a surge arrestor where the antenna cable enters the building• All installations should be completed by a qualified and competent RF technicialEIRP • Effective Isotropically Radiated Power (EIRP)• EIRP is the amount of power that is transmitted to the air from the antenna• EIRP levels depend on the power of the radio transmitter, the size of the antenna, and the losses incurred in the antenna cable• To remain license-exempt the EIRP must remain under 4 W or 36 dBm in Canada and the United States for point-to-multipoint applications. In Europe, this value is reduced to 100 mW or 20 dBm.Note: EIRP = Power out of unit – Power lost in cable + Gain in power from AntennaFade Margin See Calculating a Link Budget, page 115LOS • Line of Sight (LOS)• LOS is a football shaped pattern known as the Fresnel Zone, which must be kept clear of obstructions. See Fresnel Zone, page 117 for more information• Visual line of sight must be achieved. When standing at the antenna position, you must be able to see the remote antenna
Antenna BasicsJUL 2001 Rev 03 125Minimal Clearance Above ObstructionsFor the AWE 120-24, the absolute minimum clearance above obstructions requirements are as follows (in meters): @ 2.4 GHzSome example clearance requirements for 2.4 GHz links follow. Note: There is also a correction factor to compensate for curvature of the earth. This correction factor is not required when the correction value is negligible < 10 km.Installing AntennasEnsure the following conditions.• Dipole antennas are oriented vertically (point up).• Antennas for the system have the same polarity (vertical, horizontal or circular).• Connectors attaching the coaxial cable to the antenna are properly weatherproofed.• A drip loop is formed at the building entrance to prevent water flowing down the coaxial cable and entering the installation building.• The coaxial cable is secured to the supporting structure at one meter intervals to prevent wind damage and frost loading problems.• The antenna is firmly attached to the mast to prevent it from falling, yet has some flexibility so you can move the antenna to fine-tune its position.Distance(km)Clearance (m)Distance(miles)Clearance (ft)0.5 2.4 0.5 10.01 3.4 1 14.32 4.9 2 20.53 6.0 3 25.75 8.0 5 34.98 10.6 8 48.310 12.3 10 57.615 16.6 15 83.8WARNINGAntennas must be installed professionally to ensure that the antenna operates properly and follows accepted safety, electrical, grounding and civil engineering standards.3.4mdkm×!
Appendix A: Planning Your Wireless Link126 AWE 120-24 Installation & Configuration Guide• The coaxial cable is connected to the antenna and to the Antenna port on both sides of the link (base and remote stations).• Antennas are grounded properly.Fine-tuning AntennasYou can fine-tune the antennas by physically moving the antenna. When the remote antenna is correctly aligned, the Air LED is orange, indicating communication with the base station. You can use the Receive and Transmit Tests to test the link while adjusting the antennas to minimize BER and lost packets and maximize received power. You can use the RSSI Test to maximize RSSI.Once antennas are adjusted to maximize performance, secure them properly to the support structures.Co-locating UnitsWhen AWE antennas are located on the same mast, you must take care to ensure the output power from one radio does not overpower another co-located bridge, even if the units are operating on different channels. You may need to install a signal attenuator to lower transmit power, use antenna polarity to your advantage, or adjust antenna uptilit or downtilt. Contact Wi-LAN Technical Assistance Center for antenna and installation assistance when co-locating units.
JUL 2001 Rev 03 127Appendix B: Using HyperTerminalThe Windows 95/98 operating system includes a terminal emulation program called HyperTerminal®. You can use this program to access the AWE 120-24 configuration menus through the Serial port on the front of the unit.Note: Users of the Asian version of Windows can use Tera Term shareware (available on the Internet) to configure the AWE 120-24.Starting HyperTerminal®To start HyperTerminal1. In Windows 95 or 98, from the Start menu, select Programs, Accessories, Communications, HyperTerminal. The Connection Description window is displayed.2. Select an icon for the HyperTerminal session and type a connection name.3. Click OK. The Connect To window is displayed.4. In the Connect using field, select the appropriate COM port.5. Click OK. The COM Properties window is displayed.6. Enter the following settings.7. Click OK. The HyperTerminal window is displayed.8. From the File menu, select Properties. The Properties window is displayed.9. Click the Settings tab and then click ASCII Setup. The ASCII Setup window is displayed.Bits per second 9600Data bits 8Parity NoneStop bits 1Flow control None
Appendix B: Using HyperTerminal128 AWE 120-24 Installation & Configuration Guide10. In the ASCII Sending area, choose the following settings.11. In the ASCII Receiving area, do the following.12. Click OK. The ASCII Setup window closes.13. Click OK. The Properties window closes.14. Use a straight through RS-232 serial cable to connect the communications port of the PC to the DB9 connector on the AWE unit.15. Power up the unit.16. Press Enter. The Configuration menu is displayed in the HyperTerminal window.Determining the Communications PortTo set the communications port in the HyperTerminal session, you need to know which communications port you are using on your computer. Most laptops are connected through COM 1, but PCs can use COM 1 through 3. To determine the communications port1. Right-click the My Computer icon on your desktop and from the shortcut menu, select Properties. The System Properties window is displayed.2. Click the Device Manager tab and click Ports (COM & LPT). A list of the available communications ports appears.3. Select the appropriate port for your HyperTerminal session.Note: A connection to the Configuration menus will not be established if the wrong port is selected. If this occurs, reconfigure the HyperTerminal to connect using another available communications port.Send line ends with line feeds Clear the checkboxEcho typed characters locally Clear the checkboxLine delay Type 0Character delay Type 0Append line feeds to incoming line ends Click to select the checkboxForce incoming data to 7-bit ASCII Clear the checkboxWrap lines that exceed terminal width Click to select the checkbox
JUL 2001 Rev 03 129Appendix C: Configuring a Simple Data NetworkThis section describes how to set up a simple network to perform file transfers between two computers. You need to perform the following tasks.• Check the Network Adaptor Installation• Configure the Network• Enable the Sharing Feature on the Hard Disk DriveChecking Network Adaptor InstallationTo check the network adaptor installation1. From Windows® choose the Start menu, select Settings, Control Panel. The Control Panel window is displayed.2. Double-click the System icon. The System Properties window is displayed.3. Click the Device Manager tab.4. Double-click Network Adapters. A list of installed devices is displayed.5. Check for trouble indicators with the previously installed network adaptor(s).6. Click OK. The Control Panel window is displayed.
Appendix C: Configuring a Simple Data Network130 AWE 120-24 Installation & Configuration GuideConfiguring the NetworkTo configure the network1. In the Control Panel window, double-click the Network icon. The Network window is displayed.
Configuring the NetworkJUL 2001 Rev 03 1312. In the list of network components area, double-click Client for Microsoft Networks. The Client for Microsoft Networks Properties window is displayed.Note: If Client for Microsoft Networks is not listed, click Add and select Client, Add, Microsoft, Client for Microsoft Networks, and then click OK.3. In the Client for Microsoft Networks Properties window, do the following tasks.4. Click OK. The Client for Microsoft Networks Properties window closes.Log on to Windows NT domain Clear the checkboxWindows NT domain Clear the fieldLogon and restore network connections Click the button
Appendix C: Configuring a Simple Data Network132 AWE 120-24 Installation & Configuration Guide5. In the Network window, double-click TCP/IP. The TCP/IP Properties window is displayed.Note: If TCP/IP is not listed in the Network window, click Add and select Protocol, Add, Microsoft, TCP/IP, and then click OK.6. Click the IP Address tab.7. Click Specify an IP Address, and type the following.8. Click OK.9. Click File and Print Sharing. The File and Print Sharing window is displayed.10. Click to select the I want to be able to give others access to my files checkbox.11. Click OK.IP Address 196.2.2.1Note: Increment the last digit by 1 (i.e. type 196.2.2.2) when configuring the second computerSubnet Mask 255.255.255.0Note: This number is the same for both computers
Enabling the Sharing Feature on the Hard Disk DriveJUL 2001 Rev 03 13312. In the Network window, click the Identification tab and type the following.13. In the Network window, click the Access Control tab. 14. Click Share Level Access Control.15. Click OK.16. You are prompted to restart your computer.17. Click Ye s . Wait for your computer to restart, then proceed with Enabling the Sharing Feature on the Hard Disk Drive.Enabling the Sharing Featureon the Hard Disk DriveTo enable the sharing feature on the hard disk drive1. On the desktop, double-click My Computer. The My Computer window is displayed.Computer Name Unique name for each computer. For example, computer 1and computer 2Workgroup Workgroup name. For example, TestNote: All computers in the network must have the same workgroup nameComputer Description Description of the type of computer used. For example, laptop or desktop
Appendix C: Configuring a Simple Data Network134 AWE 120-24 Installation & Configuration Guide2. Right-click the hard disk drive icon (typically drive C:), and select Open. The Properties window is displayed.3. Click the Sharing tab, and choose the following:4. Click OK.5. Repeat this procedure for all PCs in the network.Once all PCs in the network have been shared, you can view the network by double clicking the Network Neighborhood icon that appears on each PC desktop.Shared As Click the radio buttonShare Name Type CComment Leave this field blankAccess Type Click to select FullPasswords Leave these fields blank
JUL 2001 Rev 03 135Appendix D: SNMPAbout SNMP MIBThree elements are required to use SNMP: agent software, management software and a MIB file. SNMP agent software is contained in every AWE unit. Agent software enables a unit to interpret SNMP (Simple Network Management Protocol) MIB (Management Information Block) commands. SNMP management software is installed on a networked PC or workstation and enables a network administrator to remotely manage AWE units. If you have SNMP manager software installed on a networked PC or workstation, you can configure, monitor and control AWE units via the Ethernet or air. SNMP network management software is available commercially and as shareware (for example, you can download a free evaluation copy from www.mg-soft.com). MIB is simply a list of objects that SNMP can monitor. You can download a proprietary Wi-LAN MIB file from www.wi-lan.com or obtain a copy through the Wi-LAN Technical Assistance Center. The AWE 120-24 is MIB version 2 compliant. After you download the MIB file, you must compile the file with the SNMP management software compiler.SNMP ElementsSNMP Element DescriptionManager Software installed on the network’s host computer and operated by the network administrator. From the host, the Manager configures Agents or polls Agents for informationAgent Software that runs on each unit. An Agent accepts configuration commands from the Manager and collects network and terminal information specified in the MIBManagement Information Block (MIB) A database that is accessed by a specific set of commands and executed using the SNMP manager. There is a standard MIB and a Wi-LAN customized MIB that stores information relevant to the operation of a wireless network
Appendix D: SNMP136 AWE 120-24 Installation & Configuration GuideWi-LAN Object Identifier NodesThe AWE 120-24 uses SNMP version 1, which is MIB 2 compliant. All OID (Object Identifier) nodes in the 120-24 private Wi-LAN MIB are numbered 1.3.6.1.4.1.2686.2.n where n is a private Wi-LAN MIB node number or branch of nodes.All nodes containing statistical information are cleared on power up and reset.Values in all writeable nodes are stored in Flash memory and are retained until overwritten by the administrator, even following power down or reset. Using SNMPRefer to the documentation provided with your SNMP application software for instructions about using SNMP. The procedure for changing a unit’s configuration with SNMP is described below.To change a configuration setting with SNMP1. Change the parameter to a new value using the appropriate SNMP command.2. Reboot the unit with the new configuration using the rebootNewRfConfig node command. See System Commands, page 148.3. Save the new configuration to the unit’s flash memory using the saveConfToFlash node command. See System Commands, page 148.From To Classification1.3.6.1.4.1.2686.2.1.1 1.3.6.1.4.1.2686.2.1.104 Configuration1.3.6.1.4.1.2686.2.1.100.1 1.3.6.1.4.1.2686.2.1.100.7 Configuration:System Image List1.3.6.1.4.1.2686.2.2.1 1.3.6.1.4.1.2686.2.2.7 System Status1.3.6.1.4.1.2686.2.3.1 1.3.6.1.4.1.2686.2.3.32 Statistics1.3.6.1.4.1.2686.2.4.1 1.3.6.1.4.1.2686.2.4.7 System Commands
Using Object Identifier NodesJUL 2001 Rev 03 137Using Object Identifier NodesThe following are descriptions of parameters and node addresses in the AWE 120-24 MIB.Group Parameter Address/Node Syntax Access DescriptionConfiguration serialNumber 1.3.6.1.4.1.2686.2.1.1 DisplayString(0..15)Read Only Unit Serial Number productionDate 1.3.6.1.4.1.2686.2.1.2 DisplayString(0..15)Read Only Unit Date of Manufacture macAddress 1.3.6.1.4.1.2686.2.1.3 PhysAddress Read Only Ethernet MAC Address systemName 1.3.6.1.4.1.2686.2.1.4 DisplayString(0..31)Read/Write Unit System Name unitLocation 1.3.6.1.4.1.2686.2.1.5 DisplayString(0..31)Read/Write User configurable Unit Location contactName 1.3.6.1.4.1.2686.2.1.6 DisplayString(0..31)Read/Write User configurable Contact Name config7 1.3.6.1.4.1.2686.2.1.7 INTEGER Read/Write Spare config8 1.3.6.1.4.1.2686.2.1.8 INTEGER Read/Write Spare config9 1.3.6.1.4.1.2686.2.1.9 INTEGER Read/Write Spare ipAddress 1.3.6.1.4.1.2686.2.1.10 IpAddress Read Only Internet IP Address: default = 192.168.1.100 ipNewAddress 1.3.6.1.4.1.2686.2.1.11 IpAddress Read/Write New Internet IP Address ipSubnetMask 1.3.6.1.4.1.2686.2.1.12 IpAddress Read/Write IP Subnet Mask: default = 255.255.255.0 ipGatewayAddr 1.3.6.1.4.1.2686.2.1.13 IpAddress Read/Write IP default gateway address (currently not used) ipNetmanAddr 1.3.6.1.4.1.2686.2.1.14 IpAddress Read/Write SNMP network management station IP address ipPacketFiltering 1.3.6.1.4.1.2686.2.1.15 INTEGER) Read/Write IP packet filtering:0 = disabled, 1 = enabled
Appendix D: SNMP138 AWE 120-24 Installation & Configuration Guide ipAddressFiltering 1.3.6.1.4.1.2686.2.1.16 INTEGER Read/Write IP address filtering: 0 = disabled, 1 = enabledipDefaultFiltering 1.3.6.1.4.1.2686.2.1.17 INTEGER Read/Write IP default filtering:1 = pass, 2 = blockipConfig 1.3.6.1.4.1.2686.2.1.18ipFilter1Range 1.3.6.1.4.1.2686.2.1.18.1 INTEGER Read/Write IP address filter 1 range: 0-255ipFilter1Base 1.3.6.1.4.1.2686.2.1.18.2 IpAddress Read/Write IP address filter 1 base addressipFilter1State 1.3.6.1.4.1.2686.2.1.18.3 INTEGER Read/Write IP filter 1 state0 = disabled, 1 = pass, 2 = blockipFilter2Range 1.3.6.1.4.1.2686.2.1.18.4 INTEGER Read/Write IP address filter 2 range: 0-255ipFilter2Base 1.3.6.1.4.1.2686.2.1.18.5 IpAddress Read/Write IP address filter 2 base addressipFilter2State 1.3.6.1.4.1.2686.2.1.18.6 INTEGER Read/Write IP filter 2 state0 = disabled, 1 = pass, 2 = blockipFilter3Range 1.3.6.1.4.1.2686.2.1.18.7 INTEGER Read/Write IP address filter 3 range: 0-255ipFilter3Base 1.3.6.1.4.1.2686.2.1.18.8 IpAddress Read/Write IP address filter 3 base addressipFilter3State 1.3.6.1.4.1.2686.2.1.18.9 INTEGER Read/Write IP filter 3 state0 = disabled, 1 = pass, 2 = blockipFilter4Range 1.3.6.1.4.1.2686.2.1.18.10 INTEGER Read/Write IP address filter 4 range: 0-255ipFilter4Base 1.3.6.1.4.1.2686.2.1.18.11 IpAddress Read/Write IP address filter 4 base addressipFilter4State 1.3.6.1.4.1.2686.2.1.18.12 INTEGER Read/Write IP filter 4 state0 = disabled, 1 = pass, 2 = blockipFilter5Range 1.3.6.1.4.1.2686.2.1.18.13 INTEGER Read/Write IP address filter 5 range: 0-255ipFilter5Base 1.3.6.1.4.1.2686.2.1.18.14 IpAddress Read/Write IP address filter 5 base addressipFilter5State 1.3.6.1.4.1.2686.2.1.18.15 INTEGER Read/Write IP filter 5 state0 = disabled, 1 = pass, 2 = blockGroup Parameter Address/Node Syntax Access Description
Using Object Identifier NodesJUL 2001 Rev 03 139ipFilter6Range 1.3.6.1.4.1.2686.2.1.18.16 INTEGER Read/Write IP address filter 6 range: 0-255ipFilter6Base 1.3.6.1.4.1.2686.2.1.18.17 IpAddress Read/Write IP address filter 6 base addressipFilter6State 1.3.6.1.4.1.2686.2.1.18.18 INTEGER Read/Write IP filter 6 state0 = disabled, 1 = pass, 2 = blockipFilter7Range 1.3.6.1.4.1.2686.2.1.18.19 INTEGER Read/Write IP address filter 7 range: 0-255ipFilter7Base 1.3.6.1.4.1.2686.2.1.18.20 IpAddress Read/Write IP address filter 7 base addressipFilter7State 1.3.6.1.4.1.2686.2.1.18.21 INTEGER Read/Write IP filter 7 state0 = disabled, 1 = pass, 2 = blockipFilter8Range 1.3.6.1.4.1.2686.2.1.18.22 INTEGER Read/Write IP address filter 8 range: 0-255ipFilter8Base 1.3.6.1.4.1.2686.2.1.18.23 IpAddress Read/Write IP address filter 8 base addressipFilter8State 1.3.6.1.4.1.2686.2.1.18.24 INTEGER Read/Write IP filter 8 state0 = disabled, 1 = pass, 2 = blockconfig19 1.3.6.1.4.1.2686.2.1.19 INTEGER N/A Spareconfig20 1.3.6.1.4.1.2686.2.1.20 INTEGER N/A Spareconfig21 1.3.6.1.4.1.2686.2.1.21 INTEGER N/A Spareconfig22 1.3.6.1.4.1.2686.2.1.22 INTEGER N/A Spareconfig23 1.3.6.1.4.1.2686.2.1.23 INTEGER N/A Spareconfig24 1.3.6.1.4.1.2686.2.1.24 INTEGER N/A Spareconfig25 1.3.6.1.4.1.2686.2.1.25 INTEGER N/A Spareconfig26 1.3.6.1.4.1.2686.2.1.26 INTEGER N/A SparemacFilterEntryAge 1.3.6.1.4.1.2686.2.1.27 INTEGER Read/Write MAC Filter Entry Age Time Minutes: 1-60outputPowerControl 1.3.6.1.4.1.2686.2.1.28 Nodes 28 to 28.4 are not available on units with S/W release 0.0.0linkMonitorMode 1.3.6.1.4.1.2686.2.1.28.1 INTEGER Read/Write Link Monitor Mode0 = normal, 1 = dynamic, 2 = autoGroup Parameter Address/Node Syntax Access Description
Appendix D: SNMP140 AWE 120-24 Installation & Configuration Guide signalMargin 1.3.6.1.4.1.2686.2.1.28.2 INTEGER Read/Write Signal margin (dB)userOutputPowerAdjustCeiling1.3.6.1.4.1.2686.2.1.28.3 INTEGER(0 to -31)Read/Write User output power upper limit adjust (dB)currentTxPowerLevel 1.3.6.1.4.1.2686.2.1.28.4 INTEGER Read Only Data Transmit Output Power (dBm)config29 1.3.6.1.4.1.2686.2.1.29 INTEGER Read/Write SparestationType 1.3.6.1.4.1.2686.2.1.30 INTEGER Read Only Current station type: 0 = remote, 1 = basestationRank 1.3.6.1.4.1.2686.2.1.31 INTEGER Read Only Current station RF rank: 1 to 1000centerFreq 1.3.6.1.4.1.2686.2.1.32 INTEGER Read Only Current RF center frequencysecurityWord1 1.3.6.1.4.1.2686.2.1.33 INTEGER Read Only Current RF security password 1securityWord2 1.3.6.1.4.1.2686.2.1.34 INTEGER Read Only Current RF security password 2securityWord3 1.3.6.1.4.1.2686.2.1.35 INTEGER Read Only Current RF security password 3securityWord4 1.3.6.1.4.1.2686.2.1.36 INTEGER Read Only Current RF security password 4securityWord5 1.3.6.1.4.1.2686.2.1.37 INTEGER Read Only Current RF security password 5scramblingCode 1.3.6.1.4.1.2686.2.1.38 INTEGER Read Only Current RF scrambling code wordacquisitionCode 1.3.6.1.4.1.2686.2.1.39 INTEGER Read Only Current RF acquisition code (0-15)configMinutes 1.3.6.1.4.1.2686.2.1.40 INTEGER Read Only Current RF configuration test minutes(1-120)Group Parameter Address/Node Syntax Access DescriptionFrequency(GHz) Integer Frequency(GHz) Integer2.4258 24258 2.4455 244552.4302 24302 2.4498 244982.4345 24345 2.4542 245422.4400 24400
Using Object Identifier NodesJUL 2001 Rev 03 141repeaterMode 1.3.6.1.4.1.2686.2.1.41 INTEGER Read Only Current base station repeater mode:0 = disabled, 1 = enabledsystemType 1.3.6.1.4.1.2686.2.1.42 INTEGER Read Only Current base station symmetry: 0 = asymmetric, 1 = symmetricremoteGroup 1.3.6.1.4.1.2686.2.1.43 INTEGER Read Only Current RF group identifier: 0 = closed, 1 - 63 = special groupnumOfPollRounds 1.3.6.1.4.1.2686.2.1.44 INTEGER Read Only Current Number of Polling Rounds (1-60)txPwrLevelAdj 1.3.6.1.4.1.2686.2.1.45 INTEGER Read Only Current RF Tx Power Level Adjust (-31 to 0 dB)defStationType 1.3.6.1.4.1.2686.2.1.46 INTEGER Read Only Default Station type: 0 = remote, 1 = basedefStationRank 1.3.6.1.4.1.2686.2.1.47 INTEGER Read Only Default Station RF RankdefCenterFreq 1.3.6.1.4.1.2686.2.1.48 INTEGER Read Only FLASH RF center frequencydefSecurityWord1 1.3.6.1.4.1.2686.2.1.49 INTEGER Read Only Default RF security password 1defSecurityWord2 1.3.6.1.4.1.2686.2.1.50 INTEGER Read Only Default RF security password 2defSecurityWord3 1.3.6.1.4.1.2686.2.1.51 INTEGER Read Only Default RF security password 3defSecurityWord4 1.3.6.1.4.1.2686.2.1.52 INTEGER Read Only Default RF security password 4defSecurityWord5 1.3.6.1.4.1.2686.2.1.53 INTEGER Read Only Default RF security password 5defScramblingCode 1.3.6.1.4.1.2686.2.1.54 INTEGER Read Only Default RF scrambling code worddefAcquisitionCode 1.3.6.1.4.1.2686.2.1.55 INTEGER Read Only Default RF acquisition code (0-15)Group Parameter Address/Node Syntax Access DescriptionFrequency(GHz) Integer Frequency(GHz) Integer2.4258 24258 2.4455 244552.4302 24302 2.4498 244982.4345 24345 2.4542 245422.4400 24400
Appendix D: SNMP142 AWE 120-24 Installation & Configuration Guide defConfigMinutes 1.3.6.1.4.1.2686.2.1.56 INTEGER Read Only Default RF configuration test minutes (1-120)deRepeaterMode 1.3.6.1.4.1.2686.2.1.57 INTEGER Read Only Default base station repeater mode: 0 = disabled, 1 = enableddefSystemType 1.3.6.1.4.1.2686.2.1.58 INTEGER Read Only Default base station symmetry type:0 = asymmetric, 1 = symmetricdefRemoteGroup 1.3.6.1.4.1.2686.2.1.59 INTEGER Read Only Default RF group identifier: 0 = closed, 1 - 63 = special groupdefNumOfPollRounds 1.3.6.1.4.1.2686.2.1.60 INTEGER Read Only Default Number of Polling Rounds (1-60)config61j 1.3.6.1.4.1.2686.2.1.61 INTEGER N/A SparenewStationType 1.3.6.1.4.1.2686.2.1.62 INTEGER Read/Write New station type: 0 = remote, 1 = basenewStationRank 1.3.6.1.4.1.2686.2.1.63 INTEGER Read/Write New station RF rank (1-1000)newCenterFreq 1.3.6.1.4.1.2686.2.1.64 INTEGER Read/Write New RF center frequencynewSecurityWord1 1.3.6.1.4.1.2686.2.1.65 INTEGER Read/Write New RF security password 1newSecurityWord2 1.3.6.1.4.1.2686.2.1.66 INTEGER Read/Write New RF security password 2newSecurityWord3 1.3.6.1.4.1.2686.2.1.67 INTEGER Read/Write New RF security password 3newSecurityWord4 1.3.6.1.4.1.2686.2.1.68 INTEGER Read/Write New RF security password 4newSecurityWord5 1.3.6.1.4.1.2686.2.1.69 INTEGER Read/Write New RF security password 5newScramblingCode 1.3.6.1.4.1.2686.2.1.70 INTEGER Read/Write New RF scrambling code wordGroup Parameter Address/Node Syntax Access DescriptionFrequency(GHz) Integer Frequency(GHz) Integer2.4258 24258 2.4455 244552.4302 24302 2.4498 244982.4345 24345 2.4542 245422.4400 24400
Using Object Identifier NodesJUL 2001 Rev 03 143newAcquisitionCode 1.3.6.1.4.1.2686.2.1.71 INTEGER Read/Write New RF acquisition code (0-15)newConfigMinutes 1.3.6.1.4.1.2686.2.1.72 INTEGER Read/Write New RF configuration test minutes (1-120)newRepeaterMode 1.3.6.1.4.1.2686.2.1.73 INTEGER Read/Write New base station repeater mode: 0 = disabled, 1 = enablednewSystemType 1.3.6.1.4.1.2686.2.1.74 INTEGER Read/Write New base station symmetry type: 0 = asymmetric, 1 = symmetricnewRemoteGroup 1.3.6.1.4.1.2686.2.1.75 INTEGER Read/Write New RF group identifier: 0 = closed, 1 - 63 = special groupnewNumOfPollRounds 1.3.6.1.4.1.2686.2.1.76 INTEGER Read/Write New Number of Polling Rounds (1-60)newTxPwrLevelAdj 1.3.6.1.4.1.2686.2.1.77 INTEGER Read/Write New RF Tx Power Level Adjust (-31 to 0 dB) stationMode 1.3.6.1.4.1.2686.2.1.78 INTEGER Read/Write Operating mode: 0 = normal, 1 = Rx Test, 2 = Tx Test, 3 = RSSI TestrfTransmitStatus 1.3.6.1.4.1.2686.2.1.79 INTEGER Read/Write RF transmit status: 0 = blocked, 1 = unblockedlinkMonitorPeriod 1.3.6.1.4.1.2686.2.1.80 INTEGER Read/Write Link monitor period (0-10000): 0 = disabled, 1 - 10,000 = number of data superframes per single test superframetestModeTimer 1.3.6.1.4.1.2686.2.1.81 INTEGER Read/Write Test mode timer minutes (1-1000)Group Parameter Address/Node Syntax Access Description
Appendix D: SNMP144 AWE 120-24 Installation & Configuration Guide remoteDistance 1.3.6.1.4.1.2686.2.1.82 INTEGER Read/Write Maximum remote unit distance (km)linkMonitorRank 1.3.6.1.4.1.2686.2.1.83 INTEGER Read/Write Link monitor remote station rank (1-1000)throttleEnable 1.3.6.1.4.1.2686.2.1.84 INTEGER Read/Write Throttling enable: 0 = disabled, 1 = enabledthrottleLevel 1.3.6.1.4.1.2686.2.1.85 INTEGER Read/Write RF throttle level (1-50)config86 1.3.6.1.4.1.2686.2.1.86 INTEGER Read/Write Spareconfig87 1.3.6.1.4.1.2686.2.1.87 INTEGER Read/Write Spareconfig88 1.3.6.1.4.1.2686.2.1.88 INTEGER Read/Write Spareconfig89 1.3.6.1.4.1.2686.2.1.89 INTEGER Read/Write SparecommunityName1 1.3.6.1.4.1.2686.2.1.90 DisplayString(0..15)Read/Write Read-only access community namecommunityName2 1.3.6.1.4.1.2686.2.1.91 DisplayString(0..15)Read/Write Read-Write access community nameethernetAccess 1.3.6.1.4.1.2686.2.1.92 INTEGER Read Only Ethernet access to local host: 0 = disabled, 1 = enabledGroup Parameter Address/Node Syntax Access DescriptionInteger Distance (km) Integer Distance (km)157352108 403159 45420105052511506301260
Using Object Identifier NodesJUL 2001 Rev 03 145wirelessAccess 1.3.6.1.4.1.2686.2.1.93 INTEGER Read Only Wireless access to local host: 0 = disabled, 1 = enabledconfig94 1.3.6.1.4.1.2686.2.1.94 INTEGER Read/Write SparecurrentImage 1.3.6.1.4.1.2686.2.1.95 DisplayString(0..15)Read Only Current system image file namedefaultImage 1.3.6.1.4.1.2686.2.1.96 DisplayString(0..15)Read/Write Selects specified system image file as defaultprevDefaultImage 1.3.6.1.4.1.2686.2.1.97 DisplayString(0..15)Read Only Previous default system image file nameconfig98 1.3.6.1.4.1.2686.2.1.98 INTEGER Read/Write Spareconfig99 1.3.6.1.4.1.2686.2.1.99 INTEGER Read/Write SpareSystem Image ListsystemImageList 1.3.6.1.4.1.2686.2.1.100 SEQUENCE OF SystemImageEntrynot accessibleSystem Image List BranchsystemImageNumber 1.3.6.1.4.1.2686.2.1.100.1 INTEGER Read Only System image numbersystemImageName 1.3.6.1.4.1.2686.2.1.100.2 DisplayString(0..15)Read Only System image file namesystemImageRevn 1.3.6.1.4.1.2686.2.1.100.3 DisplayString(0..15)Read Only System image revision identifiersystemImageDate 1.3.6.1.4.1.2686.2.1.100.4 DisplayString(0..15)Read Only System image file datesystemImageTime 1.3.6.1.4.1.2686.2.1.100.5 DisplayString(0..15)Read Only Time system image file was last changedsystemImageSize 1.3.6.1.4.1.2686.2.1.100.6 INTEGER Read Only System image file sizesystemImageText 1.3.6.1.4.1.2686.2.1.100.7 DisplayString(0..15)Read Only System image descriptive textGroup Parameter Address/Node Syntax Access Description
Appendix D: SNMP146 AWE 120-24 Installation & Configuration Guide config101 1.3.6.1.4.1.2686.2.1.101 INTEGER Read/Write Spareconfig102 1.3.6.1.4.1.2686.2.1.102 INTEGER Read/Write Spareconfig103 1.3.6.1.4.1.2686.2.1.103 INTEGER Read/Write Spareconfig104 1.3.6.1.4.1.2686.2.1.104 INTEGER Read/Write SpareSystem Status totalHours 1.3.6.1.4.1.2686.2.2.1 Counter Read Only Cumulative run-time hourssystemHours 1.3.6.1.4.1.2686.2.2.2 Counter Read Only Current run-time hours since poweruploginOkays 1.3.6.1.4.1.2686.2.2.3 Counter Read Only Number of successful loginsloginFails 1.3.6.1.4.1.2686.2.2.4 Counter Read Only Number of unsuccessful login attemptslocalUser 1.3.6.1.4.1.2686.2.2.5 INTEGER Read Only Local user login status: 0 = none, 1 = user, 2 = supervisortelnetUser 1.3.6.1.4.1.2686.2.2.6 INTEGER Read Only Telnet user login status:0 = none, 1 = user, 2 = supervisorftpUser 1.3.6.1.4.1.2686.2.2.7 INTEGER Read Only FTP user login status: 0 = none, 1 = user, 2 = supervisorStatistics etherRxTotalPkts 1.3.6.1.4.1.2686.2.3.1 Counter Read Only Total Ethernet packets receivedetherRxLocalPkts 1.3.6.1.4.1.2686.2.3.2 Counter Read Only Ethernet packets received for local hostetherRxErrorPkts 1.3.6.1.4.1.2686.2.3.3 Counter Read Only Ethernet packets received in erroretherRxDroppedPkts 1.3.6.1.4.1.2686.2.3.4 Counter Read Only Number of received Ethernet packets droppedetherRxDiscardPkts 1.3.6.1.4.1.2686.2.3.5 Counter Read Only Number of received Ethernet packets DiscardedetherRxTotalKbytes 1.3.6.1.4.1.2686.2.3.6 Counter Read Only Total Ethernet KBytes received since last resetetherRxBcastKbytes 1.3.6.1.4.1.2686.2.3.7 Counter Read Only Ethernet KBytes received since last resetetherTxBTotalPkts 1.3.6.1.4.1.2686.2.3.8 Counter Read Only Total Ethernet packets transmittedetherTxDroppedPkts 1.3.6.1.4.1.2686.2.3.9 Counter Read Only Ethernet transmit packets droppedetherTxTotalKbytes 1.3.6.1.4.1.2686.2.3.10 Counter Read Only Total Ethernet KBytes transmitted since last resetGroup Parameter Address/Node Syntax Access Description
Using Object Identifier NodesJUL 2001 Rev 03 147etherTxBcastKbytes 1.3.6.1.4.1.2686.2.3.11 Counter Read Only Ethernet broadcast KBytes transmitted since last resetrfRxTotalPkts 1.3.6.1.4.1.2686.2.3.12 Counter Read Only Total received RF packetsrfRxLocalPkts 1.3.6.1.4.1.2686.2.3.13 Counter Read Only Total received RF packets for local hostrfRxDroppedPkts 1.3.6.1.4.1.2686.2.3.14 Counter Read Only Number of received RF packets droppedrfRxDiscardedPkts 1.3.6.1.4.1.2686.2.3.15 Counter Read Only Number of received RF packets discardedrfTxTotalPkts 1.3.6.1.4.1.2686.2.3.16 Counter Read Only Total transmitted RF packetsrfTxLocalPkts 1.3.6.1.4.1.2686.2.3.17 Counter Read Only Number of transmitted local RF packetsrfTxDroppedPkts 1.3.6.1.4.1.2686.2.3.18 Counter Read Only Number of transmitted RF packets droppedrfRxSframeCount 1.3.6.1.4.1.2686.2.3.19 Counter Read Only Total RF super frames receivedrfRxOverrunErrors 1.3.6.1.4.1.2686.2.3.20 Counter Read Only Number of RF overrun errorsrfRxSFrameErrors 1.3.6.1.4.1.2686.2.3.21 Counter Read Only Number of RF super frame control word errorsrfRxChecksumErrors 1.3.6.1.4.1.2686.2.3.22 Counter Read Only Number of RF super frame header checksum errorsrfRxPacketErrors 1.3.6.1.4.1.2686.2.3.23 Counter Read Only Number of RF packet control work errorsrfRxLengthErrors 1.3.6.1.4.1.2686.2.3.24 Counter Read Only Number of RF super frame length errorsrfTxSuperFrameCnt 1.3.6.1.4.1.2686.2.3.25 Counter Read Only Number of RF super frames transmittedrfEtoIThroughput 1.3.6.1.4.1.2686.2.3.26 Counter Read Only Ethernet to RF throughputrfItoEThroughput 1.3.6.1.4.1.2686.2.3.27 Counter Read Only RF to Ethernet throughputstatistics24 1.3.6.1.4.1.2686.2.3.28 Counter SparelinkMonitorRank1 1.3.6.1.4.1.2686.2.3.29 INTEGER Read Only Link monitor remote station ranklinkMonRtoBber 1.3.6.1.4.1.2686.2.3.30 DisplayString(0..8)Read Only Link monitor remote to base bit error rateGroup Parameter Address/Node Syntax Access Description
Appendix D: SNMP148 AWE 120-24 Installation & Configuration Guide linkMonBtoRber 1.3.6.1.4.1.2686.2.3.31 DisplayString(0..8)Read Only Link monitor base to remote bit error ratelinkMonMissPktCnt 1.3.6.1.4.1.2686.2.3.32 Counter Read Only Link monitor missed packet countlinMonEnvPBtoR 1.3.6.1.4.1.2686.2.3.33 INTEGER Read Only Link monitor base to remote envelope powerlinkMonEnvPRtoB 1.3.6.1.4.1.2686.2.3.34 INTEGER Read Only Link monitor remote to base envelope powerlinkMonCorrPBtoR 1.3.6.1.4.1.2686.2.3.35 INTEGER Read Only Link monitor base to remote correlation powerlinkMonCorrPRtoB 1.3.6.1.4.1.2686.2.3.36 INTEGER Read Only Link monitor remote to base correlation powerSystem CommandsrebootCurrent 1.3.6.1.4.1.2686.2.4.1 INTEGER Read/Write Reboot current system image: 1 = rebootrebootImage 1.3.6.1.4.1.2686.2.4.2 DisplayString(0..15)Read/Write Reboot specified system image: system image file namerebootNewRfConfig 1.3.6.1.4.1.2686.2.4.3 INTEGER Read/Write Reboot new RF configuration:1 = rebootrestFactConfReboot 1.3.6.1.4.1.2686.2.4.4 INTEGER Read/Write Restore factory configuration and reboot:1 = restoresaveConfToFlash 1.3.6.1.4.1.2686.2.4.5 INTEGER Read/Write Save current configuration to flash:1 = saveresetRadioStats 1.3.6.1.4.1.2686.2.4.6 INTEGER Read/Write Reset radio statistics: 1 = resetresetEthernetStats 1.3.6.1.4.1.2686.2.4.7 INTEGER Read/Write Reset Ethernet statistics:1 = resetGroup Parameter Address/Node Syntax Access Description
JUL 2001 Rev 03 149Appendix E: Technical Reference InformationFront Panel LEDs.Note: The Air LED and the WIRE LED are bi-color LEDs: red and green. The displayed color depends on the proportion of received data to transmitted data. The LEDs are mostly green when more data is received than transmitted, and mostly red when more data is transmitted than received. When approximately equal amounts of data are received and transmitted at the same time, the LEDs is orange, which is the color that results from combining equal amounts of red and green.LED Type Color StatusAir (in Normal Mode)Orange Transmitting and receiving approximately equal amounts of data over the airGreen Receiving data from the airRed Transmitting data to the airOff Listening to the airMode Green Receive test mode - RS-232 displays statisticsRed Continuous Transmit test modeOrange RSSI test mode - measures fade margin, which is indicated by the color of the Air LEDOff Normal transceiver modeWIRE Green Receiving data from the wireRed Transmitting data to the wireOrange Transmitting and receiving data on the wireOff Listening to the wire or no wire connnectedPower Green Power is connected to the transceiverOff No power is connected to the transceiver
Appendix E: Technical Reference Information150 AWE 120-24 Installation & Configuration GuideDC Power Plug PinoutPin 1 +12 VDCPin 2 GNDPin 3 N/C DC Power Plug213Power Supply Unit AC Power CordDetail
JUL 2001 Rev 03 151Appendix F: Menu MapWi-LAN AWE 120-24 Main MenuUnit IdentificationHardware/Software RevisionSystem Software ROM ImagesCurrent System StatusNetwork ConfigurationIP Filter ConfigurationRF Station ConfigurationRadio Module ConfigurationRF/Ethernet StatisticsSystem SecuritySystem CommandsLink Monitor DisplayLogoutUnit IdentificationSerial Number Production Date Ethernet MAC AddressUnit Name/DescriptionUnit LocationContact NameSystem Revision InformationHardwareROM SizeRAM SizeSoftwareFile NameSystem Software ROM Images System Current StatusCumulative Run-TimeCurrent Run-TimeSuccessful LoginsUnsuccessful LoginsLocal User Logged InTelnet User Logged InFTP User Logged InNetwork ConfigurationInternet IP AddressNew IP Address (Reboot Reqd)Internet IP Subnet MaskDefault Gateway IP AddressSNMP NMS Trap IP AddressMAC Filter Entry Age Time MinutesIP Filter ConfigurationIP Packet FilteringIP Address Filtering Default IP Address FilteringRF Station ConfigurationOperating ModeRF Transmit StatusLink Monitor PeriodTest Mode Timer MinutesBase Station Only ParametersMaximum Remote DistanceLink Monitor Remote Station RankRemote Station Only ParametersThrottle EnableThrottle Level(view only)System SecuritySNMP Community Name 1SNMP Community Name 2Change User PasswordConfirm User PasswordChange Supervisor PasswordConfirm Supervisor PasswordEthernet Access to Local HostWireless Access to Local HostAuto Logout Minutes System CommandsDefault System ImageReboot a System ImageReboot Current ImageRestore Factory Config and RebootReset Radio StatisticsReset Ethernet StatisticsRF Link Monitor Statistics RF Ethernet Statistics (view only)(view only)Radio Module ConfigurationStation Type Station RankCenter FrequencySecurity Password 1 Security Password 2 Security Password 3 Security Password 4 Security Password 5 Scrambling Code Acquisition Code Config Test MinutesBase Station Only ParametersRepeater ModeSystem Symmetry TypeDynamic Polling Level Remote Station Only ParametersRemote Unit RF Group Reboot New RF configurationSave Current Config to FlashTx Power Level Adjust Link Monitor/Output PowerUser Output Power Adjust CeilingSignal MarginCurrent Output Power Level AdjustFactory Output Power AdjustCeiling
Appendix F: Menu Map152 AWE 120-24 Installation & Configuration Guide
JUL 2001 Rev 03 153Appendix G: Upgrading SoftwareIf necessary, you can upgrade the software of a AWE 120-24. This section explains how to use FTP to download a new software image to a AWE unit.Before you can download a new software image you need the following items.• A copy of the software image file• A PC connected to the AWE unit via the network• Basic network software installed on your PC, including ftp, ping, telnet, SNMP manager (optional)Obtaining New Software ImagesContact the Wi-LAN Technical Assistance Center (TAC) to acquire new image files. TAC can help determine what files you require and the most convenient way to deliver it to you. See Customer Support Contacts, page x.Downloading Image Software1. Obtain the new image files. (Image files may be delivered on floppy diskette, CD-ROM or another delivery method may be used.)2. Open a DOS session on your PC. From Windows®, choose Start, Programs, MS-DOS Prompt.3. Copy the new image files to a known directory, for example c:\wilan\images. (Create a new directory if a suitable directory does not already exist.)4. Go to the directory by typing cd c:\wilan\images and press Enter.5. List the contents of the directory. Type dir and press Enter. The names of image files should be listed in the directory.C:> copy <image filename> c:\wilan\imagesThis directory is an example only.
Appendix G: Upgrading Software154 AWE 120-24 Installation & Configuration Guide6. Type ftp <IP address> and press Enter where the IP address is the address of the AWE unit. The PC connects to the AWE unit.Note: ftp must be installed on your PC.7. Type "awe" or "hopper" and press Enter. The password prompt appears.8. Type the supervisor password for the unit and press Enter. (Supervisor access is required to change AWE unit settings–see Setting Menu Passwords, page 94). The ftp> prompt appears. 9. After the ftp prompt, type the following "put" command.Note: Leave a single space after "put."where.Current directory that contains the image file (for example, c:\wilan\images)<image filename> Name of the image filec:\wilan\images>ftp 192.168.3.85Connected to 192.168.3.85220 Wi-LAN AWE 120-24 Ethernet Bridge FTP ServerUser (192.168.3.85(none)):This IP address is an example only. Enter the IP address of your AWE unit.c:\wilan\images>ftp 192.168.3.85Connected to 192.168.3.85220 Wi-LAN AWE 120-24 Ethernet Bridge FTP ServerUser (192.168.3.85(none)):awe331 Password requiredPassword:ftp> put .\<image filename>
Activating New Software ImagesJUL 2001 Rev 03 15510. Press Enter. The image file transfers from the PC to the AWE unit. The status of the transfer, the file size and the transfer time are displayed.Tip: If you type ftp> help, online instructions for using ftp are displayed.11. Type bye and press Enter to exit ftp and return to the DOS window.12. Activate the new software image. See Activating New Software Images, below.Activating New Software ImagesAfter you download new image files to a unit, you need to configure the unit to operate from the new image rather than from the current image. If you are on-site, you can use the Main Menu to select the default image. See Setting Default System Image, page 99.If you are at a remote location from the unit, you can use telnet to access the unit’s configuration menu or use SNMP manager software (SNMP parameter = defaultImage) to choose the default image file. See Appendix D: SNMP, page 135.Removing Old Software ImagesTo delete old software images from a AWE unit, you must use ftp to connect to the unit, log in as a "supervisor" and delete images using the "ftp delete" command. Images The amount of flash memory available to store images is limited. To see the amount of memory available, see Viewing System Revision Information, page 36.ftp>put .\<image filename>200 Port set okay150 Opening binary mode connection226 Transfer complete10484 bytes sent in 0.11 seconds (95.31 Kbytes/sec)ftp>bye
Appendix G: Upgrading Software156 AWE 120-24 Installation & Configuration Guide
JUL 2001 Rev 03 157GlossaryAabsorptionAntennas mounted too close to “soft” objects, such as trees, may experience a reduction in signal strength due to absorption. Absorption is most often encountered in applications installed during the fall or winter months. The problem does not become evident until the spring when leaves appear.acquisition codeTo minimize the effects of interference, all units in a system use the same acquisition code so the receivers can distinguish the desired signal from other interfering signals.agentIn an SNMP context, the agent runs on each unit. An agent accepts configuration commands from the manager and collects network and terminal information specified in the MIB.antennaA device which accepts electromagnetic energy from a circuit or wire and radiates it into space rather than confining it.antenna gainGain of the antenna over a dipole (dBd) or isotropic (dBi).• Antennas have a gain associated with them, which is a measure of their ability to amplify signals in their tuned band.• Antenna gain is achieved by focusing the signal. A higher gain antenna has more compressed signal.ARPAddress Resolution Protocol. A low-level protocol that maps IP addresses to Ethernet addresses. An ARP request is sent out to the network along with an IP address. The node with the address responds to the request with a hardware address so the transmission can take place.attenuationAny loss in signal strength, due to resistance, absorption, capacitance or any characteristic of the medium or design of the system.
Glossary158 AWE 120-24 Installation & Configuration GuideBbase stationThe central control unit of the wireless network. A base station polls remote units and controls how traffic is routed to remotes. The base usually connects to a major access point of main wired network.beamwidthThe beamwidth of an antenna describes how a signal spreads out from the antenna as well as the range of the reception area. Beamwidth is measured between the points on the beam pattern at which the power density is half of the maximum power. This is often referred to as the -3 dB points. A high gain antenna has a very narrow beamwidth and may be more difficult to align.BERBit Error Rate. A percentage of bits per million, showing the number of bits in error compared to the data bits actually sent.blockingBlocking is an operating mode where the radio receives only. Unblocked is the normal operating mode.Ccable lossThe signal loss experienced as it passes through the coax cable. Expressed in dB.channelThe part of the spectrum band occupied by a radio signal, usually measured in kilohertz (kHz).closed systemA system where remotes cannot communicate directly with each other. They can only communicate with each other via a base station.coaxial cableA type of wire where the inner conductor is surrounded by an outer conductor. The outer conductor serves as an electrical shield.co-locationRefers to placing base stations or units in the same location. In this situation, base stations or units can interfer with each other unless steps are taken to isolate the systems from one another (such as aligning antennas or using different channels).collisionThe situation that exists when two users try to send a signal over the same medium at the same time and the signal uses the same frequencies.configuration menusMenus that allow the viewing and setting of unit parameters.
JUL 2001 Rev 03 159contentionless pollingA form of dynamic polling that ignores idle remote stations. The number of polls that an idle remote is ignored can be set to maximize polling to active stations.Cross-Polarization DiscriminationSee XPD.DdBDecibel. A relative measure of power used to specify power gains and losses. The difference in power P1 and P2 expressed in dB is DB9A D-shaped connector with 9 pins.dBddBd is antenna gain referenced over a half-wave dipole which is an antenna that has a donut shaped radiation pattern. Gain of a Standard Dipole = 2.14 dBi.dBidBi is antenna gain referenced over an isotropic radiator which is a theoretical antenna that radiates equally in all directions (e.g. the sun). Wi-LAN references antenna gain in dBi. The conversion factor is: 0 dBd = 2.14 dBi.dBmA power measurement referenced to one milliwatt. This is an absolute measure of gain.diffractionDiffraction occurs when a radio signal reflects or bounces off of a solid object. The level of diffraction could lead to connectivity problems if the remaining signal level is too low. Two types of diffraction are shadowing and multipath.downtiltSome antennas have either an associated downtilt or an uptilt. The tilt further focuses the signal either downward or upward with respect to the horizon. A tilt may be either electrically built into the antenna or achieved mechanically with the mounting gear. An downtilt or uptilt may be required when there is a significant deviation between the elevation of the remote site(s) and the base site.DSSSDirect sequence spread spectrum. A method of expanding the radio signal over a broad portion of the radio band. dynamic polling (DP)A polling protocol in which idle units are not polled as frequently as active units. Since less time is spent polling idle remotes, there are more available resources for active units and overhead is reduced.dB 10 P1P2⁄()log×=
Glossary160 AWE 120-24 Installation & Configuration Guidedynamic time allocation (DTA)A process for determining how active a remote unit is. A unit is allowed a brief time to respond to a poll before the remote is considered idle.EEEPROMElectrically Erasable, Programable Read Only Memory: non-volatile memory.EIRPEffective Isotropically Radiated Power. EIRP is the amount of power that is transmitted to the air from the antenna. EIRP levels depend on the power of the radio transmitter, the size of the antenna and the losses incurred in the antenna cable. To remain license exempt, the EIRP must remain under 4 watts or 36 dBm in Canada and the United States for point-to-multipoint applications. In Europe, this value is reduced to 100 mW or to 20 dBm.Note: EIRP = Power out of unit – Power lost in cable + Gain in power from antennaERPEffective Radiated Power. The power radiating from an antenna, taking into account the output power from the transmitter, connector losses, cable losses and the antenna gain.ETSIEuropean Telecommunications Standards Institute.Ffade marginThe amount that the system gain plus the total antenna gain exceeds the path loss is called the fade margin. The fade margin is calculated as the number of dB that the received signal strength exceeds the minimum receiver sensitivity. filteringFiltering limits certain data packets or IP addresses from being passed by a unit.FHSSFrequency hopping spread spectrum. A method of spreading a narrowband signal across a wide radio band by "hopping" the signal as a function of time.Flash memoryA type of electrically erasable non-volatile memory that can easily be erased without removal from a unit.fresnel zoneThe zone around the line of sight between two antennas. It consists of one of a (theoretically infinite) number of a concentric ellipsoids of revolution that define volumes in the radiation pattern of a (usually) circular aperture.
JUL 2001 Rev 03 161front to back ratio (F/B)Directional antennas focus the signal in a forward path. This is achieved by directing the signal in one direction that reduces the signal in the opposite direction. A higher gain antenna typically has a greater F/B ratio.ftpFile transfer protocol. A network utility program for moving files between nodes.GgainThe ability of a device to amplify a signal. Gain is the ratio of output power divided by input power, usually expressed in decibels (dB). Gain can also be measured as an absolute value, referenced to an input signal of 1 mW (dBm). For antennas, gain measures the ability of an antenna to focus a signal and is expressed in dBd (half-wave dipole reference) or dBi (isotrophic raditator reference).gatewayThe access point between one LAN and another LAN that would otherwise be incompatible with each other. It is usually a hardware device that steers communication between networks while performing code and protocol conversions.IIEEEInstitute of Electrical and Electronics Engineers.imageAn image is a collection of configurations or settings for a particular device. The System Image File contains a collection of configurations that are used when the unit is rebooted.interferenceAny signal that tends to hamper the normal reception of a desired signal. Equivalent to jamming except considered non-hostile in origin.IP AddressA number assigned to a network node, domain or subdivision. The number consists of four numbers—the first two numbers identify the network and subnetwork and the last two numbers identify unique nodes in the network. ISMIndustrial, Scientific, and Medical. It consists of three license-exempt radio bands in North America and some European countries. It is also referred to as part 15.247 in the FCC regulation that defines the parameters for use of the ISM band in the U.S., including power outputs, spread-spectrum, and noninterference.
Glossary162 AWE 120-24 Installation & Configuration GuideLlink monitorA utility that sends known data over an active system to test the reliability of the RF link. The link monitor information is overhead, that is, it reduces the amount of available payload for message data.LOS (Line of Sight)A clear, visual line of sight between antennas. When standing at the antenna position, you must be able to see the remote antenna. An elliptical pattern around the line of site, known as the Fresnel Zone, must be kept free of obstructionsMMAC addressMedia Access Control address. Alphanumeric characters that uniquely identify a network-connected device. To prevent unneccesary traffic over a radio channel, units automatically learn the MAC addresses of equipment connected to the local Ethernet segment and do not transmit over the radio channel if the destination is local. A packet entering a subscriber unit from the radio port is not sent to the Ethernet port unless the destination MAC address has been learned from packets entering the Ethernet port.managerWhen used in SNMP, this element is installed on the network’s host computer and is controlled by the network administrator. From the host, the manager configures agents or polls agents for information.MIBManagement Information Block. The MIB is a database which is accessed by a specific set of commands that you can execute using the SNMP Manager. There is a standard MIB and a Wi-LAN customized MIB that stores information relevant to the operation of a wireless network.multipath interferenceWhen a radio signal is transmitted, it can reflect off of physical objects in the environment and take various paths to the receiver. As a result, the signal can arrive at a receiver at different times, confuse the receiver, and cause bit errors and processing delays.OOID nodesObject Identifier Nodes. These are the individual nodes in a MIB. See SNMP and MIB.open systemA system where remote units can communicate directly with each other and with the base station.
JUL 2001 Rev 03 163overheadAnything that reduces the payload capacity of a system is overhead, even if it serves a useful function. The link monitor data is used to determine transmission statistics, but it reduces the message carrying capacity of a wireless link and is considered overhead. Ppath lossThe total loss from one end of the path to the other. This includes propagation losses, cable losses and any other losses that impact the system performance.PNPseudo-random noise. A code used to change a narrowband signal into a spread spectrum signal.polarizationThe orientation of the radiating element of an antenna with respect to earth. The polarizaiton of antennas is usually described as being vertical, horizontal or circular.point-to-multipointA wireless system where one base unit communicates with many remote units. The base unit polls all the remotes and data passes between units to complete the network.point-to-pointThe simplest wireless system consisting of a base and one remote. pollingThe base unit in a point-to-multipoint system handles multiple remotes by polling each one sequentially. When a base polls a remote, data exchange between that remote and the base takes place. The remote cannot exchange information with the base until it is polled again.propagation lossThe signal loss experienced as it travels through the air. Expressed in dB.RRFRadio Frequency. A system of communication using electromagnetic waves propagated through space. Because of varying characteristics, radio waves of different lengths are used for different purposes and are usually identified by their frequency.remote unitA unit that can communicate with a base station or other remote units. A remote unit forms a wireless link between a network segment and a base station.repeater baseA repeater base rebroadcasts packets received from a remote unit to other remote units. Remote units that cannot see each other (do not have LOS) can communicate through a repeater base.
Glossary164 AWE 120-24 Installation & Configuration GuideRS-232Standards for serial communications, which define the voltages, currents, data rates and other factors about the signals to be used, as well as single-ended, differential, multi-drop operation.RSSIReceived Signal Strength Indicator. Strength of received signal expressed in dB. The unit measures RSSI as a fade margin value.Sscrambling codeA code used to scramble messages, so that only units with the same scrambling can read the messages.sensitivityThe minimum signal strength required for usable performance by a unit. Expressed in dBm.shadowingShadowing is a form of diffraction that is typically caused when antennas are mounted too close to a structure and lose a portion of the signal lobe due to reflection. The receive antenna is in a shadowed area. To minimize shadowing, ensure that there is adequate height above when mounting antenna equipment to a structure.SNMPSimple Network Management Protocol. A protocol you can use to remotely manage a network element by polling, setting terminal values, and monitoring network statistics and events. It is the de facto internet work management standard, designed to provide a mechanism for the exchange of management information in a TCP/IP-based Internet environment.spread spectrum (SS)Any of a group of modulation formats in which an RF bandwidth much wider than signal bandwidth is used to transmit information, resulting in a greater immunity to noise interference.system gainThe maximum path loss that the system can support for usable data transmission.system image fileA unit uses system image files to store system configuration settings. The default system image file is called “factory-image” and is used when the unit is first powered up.TtelnetAn Internet communications protocol that enables a computer to function as a terminal working on a remote computer. A computer with a network connection to a unit can use telnet to access its configuration menus.
JUL 2001 Rev 03 165throttlingThrottling limits the amount of data that a remote station passes. This feature is used to improve overall system performance by adjusting the throughput of a unit to match the throughput of other devices in the network.UuptiltSee downtilt.VVSWR (Voltage Standing Wave Ratio)VSWR is the voltage ratio of minimum to maximum across a transmission line. A VSWR of 2.0:1 or less in an antenna is considered effective. Most antennas have a VSWR of 1.5:1. For example, when using a radio with a 4 watt output with an antenna VSWR of 1.5:1, the reflected power will be 160 milliwatts.WW-OFDMWide-band orthoganal frequency division multiplexing. A method patented by Wi-LAN that divides a channel into several sub-channels, spreading the signal over the subchannels and correcting errors without having to retransmit. W-OFDM permits several independent channels to operate within the same band, enabling multipoint networks and point-to-point systems to be overlaid in the same frequency band.XXPD (Cross-Polarization Discrimination)Antennas have an associated polarity, which is the orientation of the radiating element with respect to earth. Antennas are usually described as being vertically, horizontally or circularly polarized. The polarity of all antennas used in a system must be the same. XPD specifies the amount of signal isolation achieved when the receiving element is perpendicular to the radiating element. This can be advantageous when co-locating radio systems.
Glossary166 AWE 120-24 Installation & Configuration Guide
JUL 2001 Rev 03 167IndexNumerics10/100 BaseT connector 8Aabsorptionand antennas 121defined 157accessingconfiguration menus 30–31acquisition code 77configuring 77, 78defined 157adding to your network 27addressSNMP NMS trap IP address 41adjusting Tx power level 78adminstrative best practices 107agentdefined 157agentsSNMP 135air ventfan air vent 8antennas 120–126absorption 121beamwidth 120clearance requirements 125connector 8cross-polarization discrimination 121dBd vs. dBi 120defined 157diffraction 121downtilt 120EIRP 124fade margin 124fine-tuning 126front to back ratio 120gain 115, 117, 120, 157installation factors 124list of approved 122LOS 124maximizing capabilities 124minimal clearance 125multipath interference 121pre-installation 114safety 124selecting 122shadowing 121uptilt 120voltage standing wave ratio 121arrow keyssetting in telnet sessions 31asymmetricbase station system type 81attenuationand antennas 117defined 157auto logout minutes 97automatic logout timeout 97automatic output power 63automatic output power, explanation of 63automatic Tx power adjust 63Bback panel 8LED 8base stationdefined 158pre-configuration steps 15repeater mode 80setting 72system symmetry typeasymmetric 81symmetric 81basic RF link 20testing 22
Index 168 AWE 120-24 Installation & Configuration Guidebasic test setup 21beamwidthand antennas 120defined 158bench test 20bench test kitpart number 12best practices 107bit error ratedefined 158display in link monitor 103blockingdefined 158Ccable lossand link budget variables 116defined 158calculatingEIRP 116Fresnel radius 118propagation loss 117ceiling, user-specified power 63center frequenciesconfiguring 74, 75center frequency 74change user password 94, 95changing configuration with SNMP 136clearance requirementsantennas 125closed system 83coaxial cable 158collisiondefined 158co-located base stations, installing 27command line 106command line interface 106community names 93setting 34config test timeout period 71configuration menusaccessing 30navigating 30configuration settingsrestoring factory configuration 101configuringacquisition code 77, 78base stationmaximum remote distance 60repeater mode 80system symmetry type 81center frequencies 74, 75community names 34default gateway IP address 41default system image file 99Ethernet access 96IP settings 41network configuring 134networks 130, 133operating mode 49passwordslogin 94radios 69–87rank 73remote access 96remote stationRF group 85throttling 62scrambling code 76SNMP NMS trap IP address 41station type 72test mode timer 51timeoutlogin 97unitidentification 34name 32, 35configuring with the Main Menu 32connecting antenna and power 14connecting PC to management port 15connectors10/100 BaseT 8antenna 8power supply 8contact name 34contentionless polling 1defined 159copyright notice ixCorr Power 103correlation power 103and the link monitor display 103cross-polarization discriminationand antennas 121defined 165cumulative run-time 38current imagerebooting 100current output power 68current run-time 38
JUL 2001 Rev 03 169DdBdefined 159DB9 159dBddefined 159vs. dBi 120dBidefined 159defaultIP gateway address 41system image file 99default image 99descriptions of unitsbase station 2remote unit 2repeater 2diffractionand antennas 121defined 159distancesetting maximum remote distance 60downtiltantennas 120defined 159DSSSdefined 159DTA 82dual unit repeater 6dyamic time allocation 82dynamic output power 63dynamic pollingdefined 159dynamic polling level 82dynamic time allocationdefined 160EEEPROM 160EIRPand link budget variables 115antennas 124calculating 116defined 160enablingsharing on hard disk 134throttling 62Env Power 103envelope power 103and the link monitor display 103ERP 160establishing a basic RF link 20Ethernetconfiguring access via 96resetting statistics 102viewing statistics 88Ethernet statistics 88ETSI 160Ffactory configuration 101restoring 101factory output power 34factory-set power ceiling 34fade margins 160and antennas 124measuring with RSSI mode 57features 1FHSSdefined 160field installation 26filtering 160filtersenabling IP address filtering 45setting IP address filter range 46fine-tuningantennas 126Fresnel zonedefined 160illustration 117radius calculation 117front panel 7front to back ratioand antennas 120defined 161ftp 27upgrading software with 153ftp user logged in 38ftp, using 25Ggaindefined 161gatewaydefined 161gateway IP addresssetting default 41general equipment setup for RF tests 50getting help x
Index 170 AWE 120-24 Installation & Configuration Guideguidelines for field installation 26Hhyperterminalaccessing menu with 30starting 127IIEEE 161image filesrebooting current 100setting default 99viewing 37installationblock diagram 11description of block diagram 11overview 11installation guidelines 26installingantennas 124weatherproofing 114installing units in the field 26interferencedefined 161multipath 121internet IPSNMP NMS trap address 41internet IP address 40IP address filtering 45IP filters 42IP packet filtering 45IP subnet addresssetting default 40ISM 161Llink budgetsantenna gain 115cable loss 116EIRP 115path loss 116propagation loss 115system gain 115variables 115link monitorconfiguring for remote station 62performing link monitor test 52, 53setting link monitor period 59setting link monitor remote station rank 61statistics example 56viewing link statistics when testing RF link 23viewing statistics 103local user logged in 38log out of the Main Menu 104logging in to menususing management port 31logging out 104login timeoutconfiguring 97logging in after 97LOS 162antennas 124MMAC address 34, 162main menu 29manager 162SNMP 135maximum remote distance 60MC-DSSS technology 1menu map 151menu passwords 94menusaccessing 30navigating 30MIBdefined 162SNMP 135Wi-LAN nodes 136minimal clearanceabove obstructions 125missed packet count 103mode button 105location on unit 8monitorRS-232 link monitor 51monitoring network 28multipath interference 121defined 162Nnamescommunity 34navigatingmenus 30network adaptor installationchecking 129network configuring 134network monitoring 28network plan
JUL 2001 Rev 03 171obtaining the 13network testing with ftp 27new software imagesactivating 155noise floor 63normal operating mode 52, 53noticescopyright ixOobject identifier nodesconfiguration 137statistics 146system image list 145system status 146using 137OID nodesdefined 162Wi-LAN 136–148open system 83operating mode 49configuring using menus 49, 51original factory configuration 101output power ceiling 66output power, automatic 63output power, dynamic 63output power, viewing current 68Ppanelback 8front 7passwords 94path lossand link budget variables 116defined 163physical layoutplanning 113ping, using 25point-to-multipoint installation 27point-to-multipoint systemdefined 163point-to-multipoint wireless network 3point-to-pointdefined 163point-to-point wireless bridge 3polarizationdefined 163pollingdefined 163powerelectricalsupply connector 8power ceiling 66power level adjustment 78power plug pinout 150pre-configurepre-congifiguring units during installation 15steps 15prerequisitesantenna installation 114network planning 113preventative maintenance 28product overview 1production data 34propagation lossand link budget variables 115calculating 117defined 163put commanddownloading new image files to unit 154Rradioconfiguring 69–87resetting statistics 102setting station type 72specifications 9viewing statistics 88radio module configuration 69rankconfiguring 73rear panel 8reboot a unit 86reboot current image 100reboot image 100rebooting 86current image 100new RF configuration 86receive test 55regulatory compliance ixremote accessallowing 96configuring 96remote stationsetting link monitor from 62remote to base corr power 103remote to base env power 103remote unitconfiguring 72
Index 172 AWE 120-24 Installation & Configuration Guidedefined 163pre-configuration steps 18remote unit RF group 85remote-to-remote communication 4repeater 6repeater base 79repeater mode 79repeater mode and RF group setting 84repeater unitdefined 163resettingethernet statistics 102radio/RF statistics 102restoringfactory configuration settings 101restoring factory configuration 101RFdefined 163groups 85resetting statistics 102viewing statistics 88RF group 85RF network planningoverview 113, 153physical layout 113prerequisites 113RF Station Configurationnormal mode 47receive test 47RSSI test 47transmit test 47RF Statistics 88RF statistics 88RF test equipment setup 50RF transmit status 58ROMviewing images 37ROM images 37RS-232defined 164RSSIdefined 164RSSI LED indicatormode button 57RSSI modeconfiguringwith menus 51with mode button 33, 47, 56, 91, 98RSSI mode 57RSSI test 57Ssafetyantennas 124save current configuration to FLASH 87scrambling codeconfiguring 76scrambling codes 76sectors 5, 27security 91community names 34remote access 96setting login timeouts 97system 34, 91security passwords 75selectingantennas 122selecting operating mode with mode button 105sensitivity 164serial number 34set the operating mode 49setting internet IP address 40setting VT100 arrows 31shadowing 121, 164shipping package contents 12signal margin 63signal margin, setting 67simple network test 23simple network test setup 24site master test set 26SNMPagents 135defined 164manager 135MIB 135setting community names for 34setting NMS trap IP address 41SNMP application software 136SNMP NMS trap address 41setting 41software upgrade 153specifications 9configuration 10environment 10general 9network support 9radio 9security 10wireless network protocols 10spread spectrum
JUL 2001 Rev 03 173defined 164spread spectrum, MCDSS 9station rank 73station type 72statistics 88resetting statistics 102viewing Ethernet 88viewing RF 88successful logins 38supervisor password 95default 30sweeping antennas 26symmetricbase station system type 81systemphysical layout 113security 91system gaindefined 164system image files 98setting the default 99system symmetry type 81Ttelnetaccessing units with 31setting arrow keys in sessions 31telnet user logged in 38test time minutes 51testing with a simple wireless network 23throttle enable 62throttle level 62throttle level, setting 62throttling 62configuring 62defined 165timeoutslogin 97timertest mode 51transmit or receive tests 55transmit test 55trap address 41troubleshooting x, 108troubleshooting areas 108troubleshooting chart 109Tx power level adjustment 78Tx power, automatic adjustment 63Uunitidentification 34name 32, 35unit identificationcontact name 34MAC address 34production date 34serial number 34unit location 34unit name/description 34unit location 34unit name 34unsuccessful logins 38upgrading software 153uptiltantennas 120defined 165user output power ceiling 66user password 94default 30user-specified output power ceiling 63Vvariableslink budgets 115view link monitor rank 103view missed packet count 103view remote to base BER 103viewingcurrent radio module configuration 69current system status 38Ethernet statistics 88IP addresses 39link monitor statistics 103radio/RF statistics 88subnet mask 39system revision information 36system software ROM images 37voltage standing wave ratioand antennas 121defined 165VT100 arrows 31WWANsystem configuration 30weatherproofing 114wireless
Index 174 AWE 120-24 Installation & Configuration Guideconfiguring access via 96wireless bridge 3W-OFDMdefined 165
We are interested in your comments.Please contact us by email at docfeedback@wi-lan.com if you have any comments about this user guide.Product Code: 5700-0037 Copyright© JUL 2001 Rev 03 AWE 120-24Installation & Configuration Guide 5700-0037JUL 2001 Rev 03 www.wi-lan.com

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