GE MDS DS-NH900 MDS iNet 900 User Manual 2873A iNET IG Body

GE MDS LLC MDS iNet 900 2873A iNET IG Body

MDS iNet 900 Installation Guide

MDS 05-2873A01, Rev. A MDS i NET 900 Installation Guide 1 CONTENTS OPERATIONAL & SAFETY NOTICES ...................................2PRODUCT DESCRIPTION .....................................................4INSTALLATION PLANNING ....................................................5INSTALLATION .......................................................................5 Step 1—Mount the Transceiver ...................................................5Step 2—Install the Antenna ........................................................6Step 3—Measure & Install Primary Power ..................................6Step 4—Review the Radio’s Configuration .................................7Step 5—Connect the Data Equipment ........................................6Step 6—Check for Normal Operation .........................................9Performance Optimization .........................................................10 USING RSSI TO AIM REMOTE ANTENNAS .......................10 Method 1—For New Network Installations ................................11Method 2—Adding iNET units to an existing network ...............13 TROUBLESHOOTING ..........................................................14FUSE REPLACEMENT PROCEDURE ................................16 i NET SPECIFICATIONS .......................................................17TECHNICAL ASSISTANCE ..................................................18FACTORY SERVICE .............................................................18INSTALLATION REFERENCE CHART ............. (Center Insert) Copyright Notice This publication is protected by U.S.A. copyright law. Copyright 2002, Microwave Data Systems, Inc. All rights reserved.
2 MDS i NET 900 Installation Guide MDS 05-2873A01, Rev. A Serviceability of this Manual Every reasonable effort has been made to ensure the accuracy of this manual, however product improvements may result in minor differences between the manual and the product shipped to you. If you have additional questions or need an exact specification for a product, please contact our Customer Service Team using the information at the back of this guide. Microwave Data Systems Incorporated reserves its right to correct any errors or omissions. Updated information may also be available on our Web site at www.microwavedata.com. This manual is for the use of professionals to guide them in the installation, operation and basic system maintenance of the equipment covered. OPERATIONAL & SAFETY NOTICES The radio equipment described in this guide emits radio frequency energy. Although the power level is low, the concentrated energy from a directional antenna may pose a health hazard. Do not allow people to come closer than 20 centimeters (8 inches) to the antenna when the transmitter is operating in indoor or outdoor installations.This manual is intended to guide a professional installer in installing, operating and performing basic system maintenance on the described equipment. FM/UL/CSA Notice This product is available for use in Class 1, Division 2, Groups A, B, C & D Haz-ardous Locations. Such locations are defined in Article 500 of the National Fire Pro-tection Association (NFPA) publication NFPA 70, otherwise known as the National Electrical Code. The transceiver has been recognized for use in these hazardous locations by three independent agencies —Underwriters Laboratories (UL), Factory Mutual Research Corporation (FMRC) and the Canadian Standards Association (CSA). The UL certi-fication for the transceiver is as a Recognized Component for use in these hazardous locations, in accordance with UL Standard 1604. The FMRC Approval is in accor-dance with FMRC Standard 3611. The CSA Certification is in accordance with CSA STD C22.2 No. 213-M1987. FM/UL/CSA Conditions of Approval The transceiver is not acceptable as a stand-alone unit for use in the hazardous loca-tions described above. It must either be mounted within another piece of equipment which is certified for hazardous locations, or installed within guidelines, or conditions of approval, as set forth by the approving agencies. These conditions of approval are as follows:1. The transceiver must be mounted within a separate enclosure that is suitable for the intended application.2. The antenna feedline, DC power cable and interface cable must be routed through conduit in accordance with the National Electrical Code.3. Installation, operation and maintenance of the transceiver should be in accor-dance with the transceiver's installation manual, and the National Electrical Code.RF Exposure
MDS 05-2873A01, Rev. A MDS i NET 900 Installation Guide 3 4. Tampering or replacement with non-factory components may adversely affect the safe use of the transceiver in hazardous locations, and may void the approval. Do not disconnect equipment unless power has been switched off or the area is known to be non-hazardous.Refer to Articles 500 through 502 of the National Electrical Code (NFPA 70) for fur-ther information on hazardous locations and approved Division 2 wiring methods. FCC Notice, U.S.A. The MDS iNET 900 transceivers comply with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) this device may not cause harmful inter-ference, and (2) this device must accept any interference received, including interfer-ence that may cause undesired operation.Only install this device in accordance with the instructions outlined in this manual. Failure to comply with these instructions may also void the user’s authority to operate this device.Furthermore, this device is intended to be used only when installed in accordance with the instructions outlined in this manual. Failure to comply with these instructions may also void the user’s authority to operate this device. FCC Information This equipment has been tested and found to comply with the limits for a Class A dig-ital device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio fre-quency energy and, if not installed and used in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense. ABOUT THIS MANUAL This guide presents installation and initial operating instructions for the MDS i NET 900™ transceiver. Following installation, we suggest keeping this guide near the equipment for future reference.The scope of this manual is limited to the safe and effective installation of the unit in typical office or non-hazardous industrial settings. Users who require optimization of the equipment’s capabilities and oper-ating range should read the MDS iNET 900 Network Administrator’s Manual , P/N 05-2806A01. This manual provides more in-depth infor-mation on antenna selection and optimization, and extensive coverage on user-controllable parameters and diagnostic tools.EXPLOSIONHAZARD!
4 MDS i NET 900 Installation Guide MDS 05-2873A01, Rev. A The most essential installation information is contained on the Instal-lation Reference Chart found at the center of this manual. PRODUCT DESCRIPTION The MDS i NET 900 transceiver is designed to provide network man-agers with a easy-to-install wireless local area network (LAN) services with plug-and-play hardware.The unit can be reconfigured for any one of three standard operating arrangements; some require the use of authorization keys (alphanu-meric code) purchased from MDS. The model descriptions reflect their operating mode capabilities. Supported data interface services are one of three arrangements: 1. Ethernet, 2. Serial, and 3. Ethernet and Serial. (See Table 1 on page 4 for a summary of core interface ser-vices.)The MDS i NET 900 transceivers serve as either an “Access Point” or “Remote”. An Access Point (AP) is a wireless hub that usually pro-vides connectivity into a wired Ethernet LAN/WAN. From a radio perspective, an Access Point also serves as the radio network’s “master station” providing synchronization signaling to all associated i NET 900 Remotes (RMT) within its radio network. Table 1. i NET 900 Models and Data Interface Services Model Variation LAN Data 3 (IP/Ethernet) COM1Data COM1Local MGTCOM2Data Access Point N/A Yes Yes Yes YesRemote… Bridge 1 Yes No Yes NoSerial Gateway 1 No No Yes YesDual Gateway 1&2 Yes Yes Yes Yes NOTES 1. Alternate configurations available via authorization key.2. Able to be converted to Access Point without authorization key. (Not currently available.)3. LAN port provides access to Management System on all models and varia-tions.
MDS 05-2873A01, Rev. A MDS i NET 900 Installation Guide 5 INSTALLATION PLANNING This section provides tips for selecting an appropriate site, choosing an antenna system, and reducing the chance of harmful interference. General Requirements There are three main requirements for installing the radio—adequate and stable primary power, a good antenna system, and the correct interface between the transceiver and the data device. The center Installation Reference Chart shows a typical Remote installation. Access Point stations typically use omnidirectional antennas whereas Remotes, typically use directional antennas such as Yagis. INSTALLATION A typical transceiver product shipment consists of an i NET 900 trans-ceiver, a power connector and a manual. Check the contents against the packing list attached to the outside of the shipping box. Below are the basic steps for installing an i NET 900 transceiver. Should further information be required, see “TECHNICAL ASSIS-TANCE” on page 18 of this manual for information on contacting the MDS Customer Service Department. You will also find support infor-mation at the Microwave Data System Web site at www.microwave-data.com on the Internet.It is highly recommended that the Access Point unit be installed first. With this plan, it will be possible to quickly check the operation of each associated Remote unit as it is placed on the air. NOTE: MDS i NET 900 transceivers are shipped from the factory set to the “Remote Serial Gateway” mode unless they are marked differently. Step 1—Mount the Transceiver Mount the transceiver to a stable surface. (Fasteners/anchors/screws are not supplied unless specified on the purchase order.) Four threaded holes are located on the bottom of the radio that are suitable for con-necting mounting hardware. Use 6-32 x 1/4 inch screws to attach mounting hardware to the bottom of the radio.
6 MDS i NET 900 Installation Guide MDS 05-2873A01, Rev. A Screws used to hold the mounting brackets to the radio case should be SAE 6-32 and should not extend farther than 1/4 inch (6 mm) into case. This will prevent damage to the i NET’s internal PC board. Step 2—Install the Antenna Mount the i NET 900’s antenna at least six inches (15 cm) from metallic objects and other electrical or electronic equipment. General information on the selection and installation of antenna systems is pro-vided in the MDS iNET 900 Network Manager’s Manual . NOTE: Radio frequency energy generated by the i NET 900 can interfere with the operation of nearby low-level electronic devices and change the reported values of the data being monitored. For this reason, the antenna should be mounted at least 10 feet (> 3 meters) from connected device(s), sensors and other components of the system. Step 3—Measure & Connect Primary Power The primary power at the transceiver’s power connector must be within 10.5–30 Vdc and be capable of continuously providing up to 500 mA. The optimum voltage is 13.8 Vdc. A power connector with screw-terminals is provided with each unit. Strip the wire leads to 6 mm (0.25"). Be sure to observe proper polarity as shown in Figure 1 with the positive lead ( + ) on the left. Invisible place holder Figure 1. Power ConnectorPolarity: Left +, Right – The i NET 900 must be used only with nega-tive-ground systems. Make sure the polarity of the power source is correct. The unit is protected from reverse polarity by an internal diode and fuse.CAUTIONPOSSIBLEEQUIPMENTDAMAGEWire PortsLeadScrews (2)BindingCAUTIONPOSSIBLEEQUIPMENTDAMAGE
MDS 05-2873A01, Rev. A MDS i NET 900 Installation Guide 7 The power supply used with the transceiver should be equipped with overload protection (NEC Class 2 rating), to protect against a short cir-cuit between its output terminals and the transceiver power connector. NOTE: It typically takes about 60 seconds for the i NET 900 to power up and be ready for operation. Step 4—Review the i NET 900’s Configuration Two essential settings for i NET 900 transceivers should be known before placing the unit into service. They are:• Device Mode —Access Point, or Remote (Default)• Network Name— Unique name of the iNET 900 units asso-ciated with the network (Required)The Network Name must be programmed to enable i NET 900 Remote units to associate with the Access Point unit.Several other parameters commonly need to be reviewed and altered if necessary. They are:• IP Address —Must be a unique number to allow for IP access through the LAN Port (Ethernet).• RF Output Power Level —Check and adjust as necessary for compliance with FCC guidelines. (Default = 1 Watt/+30 dBm)• Password —Used for remote access and to use certain i NET Management System features. NOTE: The default password is admin A unique IP address in the subnet is important if the unit’s LAN port will be used to access the browser-based i NET Management System either locally or by way of a LAN/WAN. How to Review the i NET’s Configuration The following is a summary of the installation procedure. For more detailed instructions on using the HTTP ( LAN Port) and text-based ( COM1 ) Management System, please read the MDS iNET 900 Net-work Administrator’s Handbook . Key parameters are highlighted on the Management System flowchart on the Installation Reference Chart .
8 MDS i NET 900 Installation Guide MDS 05-2873A01, Rev. A a. Connect a computer’s serial communications port ( COM1 or COM2 ) to the i NET COM1 Port connector. (Data defaults: 19,200 bps/8N1)b. Launch a terminal emulator program, such as HyperTerminal, on the computer.c. Depress the ENTER key. The radio will respond with the start-up screen of the i NET Management System.A password will be required to make any changes to the radio. (Default = admin )d. Program the i NET Network Name.e. Review other settings and make changes if necessary, such as the unit password and IP address.Repeat the above steps for each transceiver in the network. (See following note) NOTE: The Management System supports the use of “configuration scripts” which can hold complex parameter arrangements. These scripts aid in uniformly configuring multiple i NET units. These are detailed in the MDS iNET 900 Network Administrator’s Handbook . Basic i NET Configuration Defaults The Basic Configuration Defaults table on the Installation Reference Chart provides a summary of selected operating parameters’ range and default values. All of these are available through the i NET’s Man-agement System accessible through a terminal emulator connected to the COM1 port or through a browser connected to the LAN Port. Step 5—Connect the Data Equipment Connect IP/Ethernet-compatible equipment data equipment to the transceiver’s LAN port (10BaseT), or one of the serial ports, depending on the capability of your i NET model. (See Table 1 on page 4.)Use only the required pins for the application—do not connect any-thing to unused pins. For Ethernet, use a straight-through Ethernet cable to connect to a hub or a crossover cable to connect directly to an
MDS 05-2873A01, Rev. A MDS i NET 900 Installation Guide 9 Ethernet station or data communication equipment. See the Installa-tion Reference Chart for pinout information. Step 6—Check for Normal Operation The first priority is to check the basic operation of data communica-tions between MDS i NET 900 units in the network. When that seems OK, connect the user data equipment and verify its proper operation through the i NET network. Below are some quick-checks that can be performed at various points in the i NET network. At All iNET Units The LEDs are a good place to look for indications of normal operation. Observe the transceiver LED panel (See the Installation Reference Chart ) for the proper indications. In a normally operating system, reli-able LED operation will usually appear within two minutes of start-up. At the i NET Access Point Unit • If the Access Point unit is the first you are installing, try sending a ping request to the i NET unit from a local or remote computer. This will verify basic LAN connectivity.• If you have already installed a Remote i NET unit, try sending a ping to that unit through the i NET Management System ping util-ity. At i NET Remote Units • Look for the LINK LED to turn on and remain on. This indicates the unit has successfully associated with the network’s Access Point unit. (The association process may take up to several min-utes.)• If the i NET network seems to be operating properly based on observation of the unit’s LEDs, connect a computer to the iNET’s data port that will be used by the local RTU/data communication equipment. Use the ping command to verify the communications link integrity with the Access Point unit. • If the ping command is successful, connect the RTU/data com-munication equipment to the iNET data port and verify normal operation.
10 MDS i NET 900 Installation Guide MDS 05-2873A01, Rev. A If all checks out OK, you are done with the installation at this site. Performance Optimization After the basic operation of the i NET network has been established, you may wish to optimize its performance using some of the sugges-tions given here. The effectiveness of these techniques will vary with the design of your system and the format of the data being sent.• Optimize Received Signal Strength —Check the received signal strength indicator (RSSI) for an adequate signal level from the radio network’s Access Point. (RSSI is available through the i NET Management System) In the absence of interference, signal levels of –80 dBm or stronger are sufficient for reliable operation.If the signal levels are lower, it may be necessary to reposition the Remote’s antenna for better reception/signal strength, or if a directional antenna is used, align it so that the signal is optimized.• Reduce Bit-Error Rate (BER) —If the bit-error rate of the data network is unacceptably high, several techniques can be used to improve the BER.These include indentifying interference and taking corrective steps such as skipping some radio frequencies from the hopping pattern, increasing the gain of the Remote unit’s antenna system, relocating the Remote’s antenna, or installing an i NET repeater system. USING RSSI TO AIM REMOTE ANTENNAS The MDS i NET 900 network integrity is depends partially on stable radio signal levels being received at each end of a data link. In general, signal levels stronger than –80 dBm will provide the basis for reliable communication. As the distance between the Access Point and Remotes increases, the influence of terrain, foliage and man-made obstructions become influential and the use of directional antennas as Remote locations becomes necessary. Directional antennas usually require some fine-tuning of their bearing to optimize the received signal strength. The MDS i NET 900 unit has a built-in received signal strength indicator (RSSI) that can be used to tell you when the antenna is in a position that provides the optimum received signal.
MDS 05-2873A01, Rev. A MDS iNET 900 Installation Guide 11There are several techniques that can be used to measure RSSI at iNET Remote units. The technique you choose to use will depend on your available manpower and the need to maintain data traffic on the iNET network. It is recommended that this process be completed before the network is placed on-line.Consider using the Method 1 procedure if the iNET Remote is receiving a weak or unstable signal. If that is not feasible, a bit-error rate measurements may prove to be the best alternative under difficult conditions.The measurement and antenna alignment process will usually take 10 or more minutes at each iNET unit.NOTE: RSSI readings are based on multiple signal samples over a period of several seconds. The average of this measurements will be displayed by the iNET Management System.Method 1—For New Network InstallationsBackgroundThe Access Point and Remote gateway units must be placed into the test mode. This requires a data connection to each location to remotely control the state of the distant unit outside of the iNET network. If this connectivity is available, the iNET Management System may be used via HTTP or Telnet and controlled by one person. The alternative is two people with telephone or radio communications between each location to coordinate the process.• Use of the Radio Test Mode:• Placing the Access Point in this mode will disrupt the entire network operation.• All iNET Remotes in the network will need to re-associate themselves with the Access Point before they can handle nor-mal data traffic.• The Test Mode has a 10 minute timer, after which it will return the iNET unit to normal operation.• The iNET Access Point and Remote units must be on the same frequency. The user can choose any frequency within the 902–928 MHz bad. Default = 915.0000• The test mode and your ability to change operating parameters will time-out after 10 minutes. You do not need to login again to continue to navigate through the Management System. You will
12 MDS iNET 900 Installation Guide MDS 05-2873A01, Rev. A be prompted for a password when you request a parameter change after your session has timed-out.NOTE: Path to menu item shown in bold text below step.Procedure1. Verify the iNET Remote is associated with an Access Point unit. Observe the condition of the LINK LED.LINK LED = On or BlinkingThis will indicate that you have an adequate signal level for the measurements and it is safe to proceed.2. Place the Access Point unit into the Radio Test Mode.Main Menu>Diagnostic Tools>Radio Test>Test Mode>Y>ONVerify the frequency is the same as that which will be used at the Remote.3. Turn on the Access Point transmitter.Main Menu>Diagnostic Tools>Radio Test>Test Mode>TxKey> EnableUser the spacebar to key and unkey the transmitter ON and OFF. (Enable/Disable)4. Place the Remote in the Radio Test Mode.Main Menu>Diagnostic Tools>Radio Test>ONVerify the frequency is the same as that used at the Access Point.5. Read the RSSI level at the Remote.Main Menu>Diagnostic Tools>Radio Test>RSSI6. Optimize RSSI (less negative) by adjusting direction of antenna.7. Turn off Radio Test Mode at the Access PointMain Menu>Diagnostic Tools>Radio Test>Test Mode>DisableEnd of procedure
MDS 05-2873A01, Rev. A MDS iNET 900 Installation Guide 13Method 2—Adding iNET units to an existing networkBackgroundThis method will not disrupt traffic through other iNET units in the network and does not require the Access Point’s operating state to be changed.If the Access Point is left on-line in an associated state with other iNET units in the network, the iNET Remote under test will not be able to differentiate the signals received from the Access Point and any other radio signal sources in the 900 MHz band. This could lead to confusion and possibly misdirecting of the antenna. Procedure1. Verify the iNET Remote is associated with an Access Point unit. Observe the condition of the LINK LED.LINK LED = On or BlinkingThis will indicate that you have an adequate signal level for the measurements and it is safe to proceed.2. View and record the bit-error rate (BER).Main Menu>Performance Information>Bit-Error RateThis information will used later.3. Read the RSSI level at the Remote.Main Menu>Performance Information>RSSI by Zone4. Optimize RSSI (less negative) by slowly adjusting direction of antenna.Watch the RSSI indication for several seconds after making each adjustment so that the RSSI accurately reflects the link signal strength.5. View and record the bit-error rate (BER) at the point of maximum RSSI level. The BER should be the same or better than the previ-ous reading. If not, the antenna may be aimed at an undesired sig-nal source.Main Menu>Performance Information>Bit-Error RateEnd of procedure
14 MDS iNET 900 Installation Guide MDS 05-2873A01, Rev. A TROUBLESHOOTINGIt is best to begin troubleshooting at the Access Point station, as the rest of the system depends on the Access Point for network synchroni-zation and configuration. If the Access Point station has problems, the operation of the entire network will be affected.All radios in the network must meet these basic requirements:• Adequate and stable primary power• An efficient and properly aligned antenna system• Secure connections (RF, data & power)• Proper programming of the radio’s operating parameters, especially Device Mode selection (Access Point/Remote), Network Name, and often IP Network Address• The correct interface between the radio and the connected data equipment (proper cable wiring, data format and timing).Table 2 on page 15 provides suggestions for resolving common system difficulties. If problems persist, review the MDS Web site’s technical support area for recent software/firmware updates, general troubleshooting help, and service information. Additional help is available through the MDS Customer Service Department. (See “TECHNICAL ASSISTANCE” on page 18.)
MDS 05-2873A01, Rev. A MDS iNET 900 Installation Guide 15Table 2. Troubleshooting TechniquesDifficulty Problem/Recommended System ChecksThe PWR LED does not turn on. a. Voltage too low.—Check for the proper supply voltage at the power connector.b. Microprocessor Locked Up—Cycle the power and wait for the unit to reboot. (≈ 30 seconds)Interference is suspected. a. If omnidirectional antennas are used, consider changing to directional antennas. This will often limit interference to and from other stations.b. The installation of a filter in the antenna feedline may be necessary. Consult the factory for further assistance.The LINK LED does not turn on. a. Network Name of Remote not identical to desired Access Point—Verify that the system has a unique Network Name. b. A nearby system (Access Point unit) with the same Network Name causing interference.a. Not yet associated with an Access Point.Check the “Status” of the unit’s process of associating with the Access Point. Use the iNET Management System.d. Loose Connection—Check for secure interface connections at the radio and the connected device.c. Poor Antenna System—Check the antenna, feedline and connectors. Reflected power should be less than 10% of the forward power reading (SWR ≈2:1 or lower). Cannot pass IP data to WAN. a. Use the PING command to test communication with iNET units in the local radio system.b. If successful with local PING, attempt to PING an IP unit attached to an iNET radio.c. If successful with the LAN PINGs, try connecting to a known unit in the WAN.
16 MDS iNET 900 Installation Guide MDS 05-2873A01, Rev. A FUSE REPLACEMENT PROCEDUREThe iNET unit is protected by an internal fuse. The fuse will be blown by a reverse polarity of the primary DC power, an over-voltage tran-sient or an internal failure. The fuse should not be replaced until you are certain you are in a safe environment1. Remove the iNET unit from service.2. Disconnect the primary power source and all other connections to the unit.3. Place the iNET unit on its back and remove the four Phillips screws at the corners of the bottom cover.4. Carefully separate the top and bottom covers. There is a flat ribbon cable between the top cover’s LEDs and the unit motherboard. You do not need to disconnect the ribbon cable.5. Locate the fuse and fuse holder between the COM1 port and the power connector. Figure 2 is a photograph of the fuse assembly.6. Loosen the fuse from the holder using a very small screwdriver. Use a small pair of needle-nose pliers to pull the fuse straight up and remove it.7. Install a new fuse by reversing the process.Littelfuse P/N: 0454002; 452 Series, 2 Amp SMF Slo-Blo(MDS P/N: 29-1784A03)8. Replace the covers, interface cables and check the iNET unit for proper operation.Invisible place holderFigure 2. Fuse Location
MDS 05-2873A01, Rev. A MDS iNET 900 Installation Guide 17INET SPECIFICATIONSGENERALTemperature Range: –30°C to +70°C (–22° F to 158° F)Humidity: 95% at +40°C (104° F); non-condensingPrimary Power: 10.5–30 Vdc (13.8 Vdc Nominal)External Power Supply Options: 48 Vdc; 110–120/210–220 VacSupply Current (typical): (@1 Watt RF Output)Transmit: 500 mA @ 13.8 VdcSize (Excluding mtg. hardware): 1.5" x 6" x 4" (H x W x D)3.8 x 15.2 x 10.2 cmWeight: 0.9 kg / 2 lbCase: Cast AluminumShock and Vibration: Meets MIL STD 202F, 810E, 202DRADIO CHARACTERISTICSGENERAL:Frequency Range: 902–928 MHz ISM BandMode: Freq. Hopping Spread-Spectrum (FHSS)TRANSMITTER:Power Output (at antenna connector): 0.1 to 1.0 watt (+20 dBm to +30 dBm) Increments of 1.0 dB, set by userDuty Cycle: ContinuousOutput Impedance: 50 OhmsRECEIVER:Type: Double conversion superheterodyneSensitivity: –92 dBm @ 512 kbps < 1x10-6 BER–100 dBm @ 256 kbps < 1x10-6 BERTime Required to Synchronizewith Access Point: < 1.4 minutes after boot (typical)
18 MDS iNET 900 Installation Guide MDS 05-2873A01, Rev. A TECHNICAL ASSISTANCETechnical assistance for MDS products is available from our Cus-tomer Support Team during business hours (8:00 A.M.–5:30 P.M. Eastern Time). When calling, please give the complete model number of the radio, along with a description of the trouble symptom(s) that you are experiencing. In many cases, problems can be resolved over the telephone, without the need for returning the unit to the factory.Telephone 1+ 585-242-8510 for product assistance or visit the tech-nical support area of the Microwave Data Systems’ Web site at www.microwavedata.com.FACTORY SERVICEIf return of the equipment is necessary, please contact the MDS Cus-tomer Support Team. You will be issued a Returned Material Autho-rization (RMA) number. The RMA number will help expedite the repair so that the equipment can be repaired and returned to you as quickly as possible. Please be sure to include the RMA number on the outside of the shipping box, and on any correspondence relating to the repair. No equipment will be accepted for repair without an RMA number.A statement should accompany the radio describing, in detail, the trouble symptom(s), and a description of any associated equipment normally connected to the radio. It is also important to include the name and telephone number of a person in your organization who can be contacted if additional information is required.The radio must be properly packed for return to the factory. The orig-inal shipping container and packaging materials should be used when-ever possible. All factory returns should be addressed to:When repairs have been completed, the equipment will be returned to you by the same shipping method used to send it to the factory. Please specify if you wish to make different shipping arrangements. Microwave Data Systems Inc.Customer Service Department(RMA No. XXXX)175 Science ParkwayRochester, NY 14620 USA
MDS 05-2873A01, Rev. A MDS iNET 900 Installation Guide 19LAN COM1 COM2 PWR LINK
20 MDS iNET 900 Installation Guide MDS 05-2873A01, Rev. A LAN COM1 COM2 PWR LINK

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