Electronic Systems Technology ESTEEM195EA Wireless LAN transceiver User Manual

Electronic Systems Technology Wireless LAN transceiver

User Manual

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ESTeem MODEL 195Ea
USER’S MANUAL
Manual Revision 1
July 2011
Electronic Systems Technology, Inc.
ESTeem MODEL 195Ea
USER’S MANUAL
Manual Revision 1.0
Firmware Version XXX and above
July 2011
Prepared by:
Name:
Title:
Eric P. Marske
Product Manager
Date:
Approved by:
Name:
Title:
Tom L. Kirchner
President
Date:
COPYRIGHT INFORMATION
This manual and the firmware described in it are copyrighted by EST, with all rights reserved. Under the copyright laws, this manual or the firmware
internal to the ESTeem unit may not be copied, in whole or part, without the written consent of EST. Under the law, copying includes translating into
another language.
Electronic Systems Technology (EST) cannot guarantee that you will receive notice of a revision to the firmware described in the manual, even if
you have returned a registration/warranty card received with the product. You should periodically check with your authorized EST dealer or call
factory direct.
EST and the EST logo are registered trademarks of Electronic Systems Technology, Inc. Simultaneously published in the United States and
Canada. All rights reserved.
WARRANTY INFORMATION
Electronic Systems Technology, Inc., (hereinafter EST) expressly warrants its products as free of manufacturing defects for a period of one year
from the date of sale to first user/customer.
THERE ARE NO OTHER WARRANTIES, EXPRESS OR IMPLIED AND THERE IS EXPRESSLY EXCLUDED ALL WARRANTIES OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. NO OTHER WARRANTY GIVEN BY ANY EMPLOYEE, AGENT,
DISTRIBUTOR OR OTHER PERSON WITH RESPECT TO THE PRODUCT SHALL BE BINDING ON EST.
LIMITATION OF LIABILITY:
EST's liability shall be limited to refunding of purchase price, repair or replacement of product.
IN NO EVENT SHALL EST HAVE LIABILITY FOR CONSEQUENTIAL, INCIDENTAL, SPECIAL OR EXEMPLARY DAMAGES CAUSED
DIRECTLY OR INDIRECTLY BY THE PRODUCT, INCLUDING BUT NOT LIMITED TO ANY INTERRUPTION OF SERVICES, LOSS OF
BUSINESS OR ANTICIPATORY PROFITS. IN NO EVENT SHALL EST BE LIABLE FOR ANY DAMAGES WHATSOEVER IN EXCESS OF THE
PURCHASE PRICE OF THE PRODUCT.
In the event that a unit or part requires replacement or factory servicing, the following conditions apply:
a)
b)
Customer must obtain from EST an authorized RMA (Return Materials Authorization) number (call 509-735-9092 Customer Support)
before shipment of product or parts to EST for any reason;
If the whole unit is shipped, it must be in its original carton and shipping components, or a carton and shipping components supplied by
EST, or if parts only are shipped, they must be packaged and cushioned so as to prevent damage in transit and shipped freight prepaid;
PRODUCT WILL BE CONSIDERED OUT OF WARRANTY IF:
a)
b)
c)
d)
e)
If the product is damaged due to improper or abnormal use, abuse, mishandling, accident or improper maintenance or failure to follow
operating instruction;
If the product is defective as a result of sand, dirt, or water damage;
If any factory-sealed enclosure has been opened or shows evidence of an attempt to be opened;
If defects or damage are caused by the use of unauthorized parts or unauthorized service;
If the product has had its serial numbers altered or removed.
Warranty repair form must be accompanied by proof of user's purchase of unit. Product must be shipped to the manufacturer at the following
address:
Electronic Systems Technology
Building B1
415 North Quay Street
Kennewick, Washington USA 99336
ADDITIONAL SERVICE:
If EST releases an improvement update to firmware internal to the ESTeem unit during the 90 day period after the unit was purchased by the first
user/customer, EST will update the applicable unit with the revised version at no charge other than for UPS handling and shipping to and from your
location to the EST factory. Return of any such item must be accompanied with proof of purchase.
TABLE OF CONTENTS
CHAPTER 1 – Introduction
Before You Begin
1-1
Model 195Ea Overview
1-1
Model 195Ea Configuration Modes
Access Point Modes
Access Point Repeater
Self-Healing Mesh Network
Mobile Station Modes
Serial Applications
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
1-1
1-2
1-3
1-4
1-4
1-4
CHAPTER 2 – Starting Out
2-1
Three Configuration Phases
Model 195Ea Hardware Description
Front Panel Layout
Antenna Connection Overview
-----------------------------------------------------------------------------------------
2-1
2-2
2-2
2-3
Model 195Ea Hardware Configuration
CHAPTER 3 – Example Applications
Modes of Operation Description and Examples
Ethernet Bridge Mode
Router Modes
Mobile Client Modes
Access Point Modes
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
3-1
3-1
3-3
3-4
3-5
Programming Examples
Using ESTeem Network Configuration (ENC) Utility
Example 1 – Point to Point Ethernet Bridge
Example 2 – Point to Point Ethernet Bridge with Repeater
Example 3 – Point to Multipoint with Mesh Repeater
Example 4 – Point to Multipoint Router Mode
Example 5 – Mobile Client Mode
Example 6 – Access Point Mode
Router Addressing Examples
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
3-7
3-7
3-9
3-10
3-11
3-13
3-15
3-16
3-17
CHAPTER 4 – Utilities and Features
ESTeem Network Configuration (ENC) Utility
Using ESTeem Discovery Program
Using EtherStation Status Program
Setting Local Time
Configuring Time Server
VLAN Operation
IGMP Snooping
Simple Network Management Protocol (SNMP)
Revised: 22 Aug 11
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
Page 1
4-1
4-2
4-5
4-6
4-7
4-9
4-10
4-15
EST P/N AA107A
TABLE OF CONTENTS
CHAPTER 5 – Web Configuration
Logging Into Web Configuration Manager
5-1
Web Configuration Manager
5-2
Top Menu
---------------------------------------------
5-2
Setting ModemID Field
---------------------------------------------
5-2
Status Menu
---------------------------------------------
5-3
System Log Screen
---------------------------------------------
5-5
Setup Screen
---------------------------------------------
5-5
Advanced Configuration Screen
---------------------------------------------
5-6
Backup Screen
---------------------------------------------
5-6
Restore Screen
---------------------------------------------
5-7
Software Update
---------------------------------------------
5-8
System Reboot
---------------------------------------------
5-8
CHAPTER 6 – Serial Configuration and Applications
Using RS-232 Programming Port
6-1
Using RS-232 Data Port
6-3
Serial Connections
Second Ethernet Port
---------------------------------------------
6-3
6-3
6-3
Serial Configuration
CHAPTER 7 – Repeating and Mesh Networking
ESTeem Mesh Network
Configuration
---------------------------------------------
7-2
Rapid Spanning Tree Protocol (RSTP)
Spanning Tree Protocols (STP)
Overview
Phases
Priority and Path Cost
Root Bridge
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
7-3
7-3
7-4
7-4
7-4
7-5
Redundant Backup
Revised: 22 Aug 11
7-1
7-1
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TABLE OF CONTENTS
CHAPTER 8 – Antenna Setups
Antenna and Cable Configurations (Pole Mount)
8-1
Antenna and Cable Configurations (Cabinet Mount)
8-2
Coaxial Cable Attenuation
8-2
Weatherproofing Coaxial Cable Connections
8-3
Antenna Diversity
8-3
Antenna Port Selection
8-4
Assembling the AA195PM Outdoor Pole Mounting Kit
8-6
195E Grounding Procedure
8-11
Fresnel Zone
8-12
Model 195Ea Antenna Configurations
8-13
APPENDIX A – FCC INFORMATION
APPENDIX B – SPECIFICATIONS
195Ea Specifications
Case Diagram
Antenna Specifications
APPENDIX C – INTERFACE PORTS
Ethernet Interface
Configuring DHCP Server
RS-232 Programming Port Pin-Out
RS-232 Data Port Pin-Out
APPENDIX D – RADIO CONFIGURATION
Frequency of Operation
Setting Data Rates
Setting RF Power Level
Average RF Output Power
-------------------------------------------------------------------------------------------------------------------------------------
B-1
B-2
B-3
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
C-1
C-1
C-2
C-2
---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
D-1
D-1
D-3
D-4
-----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
F-1
F-2
F-3
F-4
F-5
APPENDIX E – SECURITY
APPENDIX F – TROUBLESHOOTING
Testing Communication Link
Viewing RF Data Rates
Signal Strength vs Data Rates
Setting Maximum Distance Value
Troubleshooting Tips
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CHAPTER 1
INTRODUCTION
BEFORE YOU BEGIN
Thank you and congratulations on your purchase of the
ESTeem Model 195Ea Wireless Ethernet Radio Modem!
This manual was written to help both the first time and
advanced user of the 195Ea configure the radio modem for
your application. If this is your first time configuring the
195Ea and you would like to get going as soon as possible,
we recommend using the ESTeem Resource CD provided
with the modem. The Resource CD will provide the software
utilities and guide you through the configuration of the Figure 1: ESTeem Model 195Ea
wireless modem for your application.
The ESTeem 195Ea is a very versatile wireless Ethernet networking device. To keep the manual usably short,
many of the application descriptions and programming details assume the user has a good working knowledge of
the following network concepts:







Throughout this User’s Manual are
General Ethernet networking and the configuration of LAN topologies
“Technical Tips” in boxes like this that
Common Ethernet terminology and acronyms
have been added to help answer the
TCP/IP network protocol structure and how to configure TCP/IP
most commonly asked questions.
networks and subnets
How to identify and set the TCP/IP address on your computer
Have administrator privileges to the computer and network you are configuring
If using routing protocols, you must be able to identify and configure the network routers, gateways and firewalls
You must be familiar with using web browser software such as Internet Explorer, Netscape or Mozilla
If you are unfamiliar with any of the above networking concepts, you may need to contact your network administrator for
assistance.
MODEL 195Ea OVERVIEW
The ESTeem Model 195Ea is a wireless
LAN transceiver that can be used to build a
Wireless Local Area Network (WLAN) for
line-of-sight distances to 15 miles for fixed
base and 5 miles for mobile applications.
The 195Ea can provide RF data rates up to
54 Mbps and can have a serial port for
legacy RS-232 devices. The Model 195Ea is
a very sophisticated networking device that
can be configured for multiple modes of
operation depending upon the needs of the
wireless and wired LAN system. The
following configuration modes are provided
as an overview of the basic network types,
as all possible network configurations can
not be listed. For further help in selecting the
correct network type, please contact
Customer Support at 509-735-9092.
Figure 2: Access Point Bridge Diagram
Revised: 22 Aug 11
1-1
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CHAPTER 1
INTRODUCTION
MODEL 195Ea
MODES
CONFIGURATION
The Model 195Ea can be configured for
multiple modes of operation without any
changes to the hardware. The following
are brief descriptions of the configuration
modes.
For detailed descriptions and
suggested applications for each mode,
please refer to Chapter 4 – Example
Applications:
Access Point Modes
When the Model 195Ea is configured as an
Access Point it will provide a wireless
bridge from a hardwired Local Area
Network (LAN) to other Model 195Ea
modems in client modes. Multiple Access
Point Bridge modems can be physically
Figure 3: Repeater Mode Diagram
connected to the same network (LAN) or
through a radio link using the Access Point
Repeater mode to provide overlapping, seamless Ethernet communication for mobile devices. The ESTeem Model
195Ea in Access Point Bridge mode will pass all network traffic between connected devices including global network
broadcasts.
1.
Access Point Bridge Mode
The ESTeem Model 195Ea in Access Point Bridge mode will both provide wireless access to mobile clients
(Access Point) and bridge all Ethernet data connected to the Ethernet ports. The AP Bridge mode will pass all
network traffic between connected devices including global network broadcasts. See Figure 2.
2.
Access Point Router Mode
In this mode the ESTeem Model
195Ea will function as a router
between wired Ethernet networks,
connected to the 195Ea’s Ethernet
port, and the wireless network of
mobile clients and other 195Ea’s. As
in all standard router configurations,
the wireless and wired Ethernet
networks will need to be on separate
subnets. The 195Ea in Access Point
Router mode will pass network traffic
for connected devices but will block
global network broadcasts from the
wired network.
This mode of
operation should be used instead of
the Access Point Bridge mode when
a separation between networks is
required or the ESTeem is
connected to larger LAN Networks
that will continuously send global
network broadcasts (Figure 3).
Revised: 22 Aug 11
Figure 4: Access Point Masquerade Diagram
1-2
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CHAPTER 1
INTRODUCTION
3.
Access Point Masquerade Mode
The Access Point Masquerade mode is a special use of the Access Point mode where the Model 195Ea will
connect multiple clients into a single static IP address on a wired network. Data requests from the wireless
network will be processed through the Access Point Masquerade 195Ea, but any request from the wired
Ethernet network to devices on the wireless network will be rejected similar to the operation of a “firewall”. The
195Ea will hide all the IP addresses connected on the wireless link. You should use this mode of operation if
Model 195Ea is connected directly to the Internet with a static IP address (DSL, T1, etc.) and you want the
wireless clients to access the information through the Model 195Ea (Figure 3). This mode should also be used
for attaching the Model 195Ea to a network where few IP addresses are available or a firewall for the wireless
clients is required.
4.
Access Point Repeater
The Access Point Repeater can be used with any of the above Access Point modes. With this repeater
feature enabled, the Model 195Ea Access Points do not have to be hardwired together on the same physical
LAN to provide seamless Ethernet communication for roaming clients. In addition to greatly extending the
Access Point canopy range, the Model 195Ea will also bridge any Ethernet device or Ethernet network
connected to the unit over this same wireless Ethernet network. This mode gives the user the features of a
point to multi-point bridge network but also allows Model 195Ea in the Client mode to simultaneously roam
under the network canopy.
5.
Self-Healing Mesh Network
If multiple Access Point Repeater routes are configured to the same destination ESTeem, the 195Ea will
create a “self-healing” mesh network by automatically re-routing data through alternate paths to reach its
destination if the primary path is inoperable. The routing and priority of alternate paths is completely user
configurable. See Figure 5.
Figure 5: Mesh Network Diagram
Revised: 22 Aug 11
1-3
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CHAPTER 1
INTRODUCTION
Station (Client) Modes
1. EtherStation Mode. When the 195Ea is configured in the EtherStation Mode and attached to a single Ethernet
Device, the Model 195Ea will provide wireless mobile access to that device through a canopy of Access Points.
The 195Ea will seamless roam under the radio canopy of Access Point and can provide greatly increased range for
mobile Ethernet devices such as vehicles, forklifts, cranes, etc (Figures 1-3).
2. Station Router Mode. The Station Router mode will also function as a client, similar to EtherStation, but will allow
multiple Ethernet devices to be connected to a single 195Ea (Figure 3). The 195Ea will function as a router
between the wireless client mode and the wired Ethernet devices connected to the Ethernet port. Similar in
configuration to the Access Point Router mode, the wireless and wired Ethernet networks will need to be on
separate subnets. To communicate from wireless network to devices on the wired Station Router network, a
separate router (connected to the Ethernet side of the Access Point) is required. This mode would be used where
multiple Ethernet devices will be connected to a single Model 195Ea in a mobile client application and the
connected Ethernet devices will need to be accessible from the Access Point’s LAN network.
3. Station Masquerade Mode. The Station Masquerade Mode is another mode where multiple devices will be
connected to a single ESTeem in a mobile or Client application, but unlike the Station Router mode, the Station
Masquerade will consolidate all connected Ethernet devices to a single IP address on the network. The devices
connected to the Station Masquerade 195Ea will be able to access information from both the wireless and wired
LAN, but will be inaccessible the other way similar in application to a firewall. This mode would be used where
multiple Ethernet devices will be connected to a single Model 195Ea in a mobile application and the IP addresses
for each device will be hidden from the LAN connected to the Access Point. See Figure 3.
Serial Applications. The ESTeem 195Ea
is installed with an RS-232 data port for
serial data applications run over the
broadband link (Figure 5). The serial over
broadband network can be used in a pointto-point or point-to-multi-point application
for networking serial (RS-232c) devices,
providing serial connections to legacy
hardware in a new Ethernet network or
providing for high-bandwidth devices (such
as Video or Voice over IP) in an existing
serial network. Installing the serial port
option also provides a second 10/100
Base-T Ethernet port that can be used to
connect a second Ethernet device without
requiring a HUB/Switch or can be
configured as an external Router port.
To begin setup of your wireless Ethernet
network, continue to Chapter 2 - Staring
Out of this User’s Manual.
Figure 6: Multi-point Serial Diagram
Revised: 22 Aug 11
1-4
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CHAPTER 2
STARTING OUT
OVERVIEW
There are three main phases to prepare the ESTeem 195Ea for operation in a wireless network:
Phase 1 - Determine the correct mode of operation for the ESTeem in the wireless network. The ESTeem 195Ea is a
sophisticated networking device that can be configured for multiple modes of operation. Determining the correct mode of operation
for the ESTeem 195Ea is the first step. Chapter 3 of this User’s Manual details the modes of operation and applications where each
would be used.
Phase 2 - Program the ESTeem for operation in the wireless network. Once the correct mode of operation for the ESTeem has
been determined, the 195Ea can be programmed for the wireless network. To simplify the programming of the Model 195Ea,
ESTeem has created a new software utility called the ESTeem Network Configuration (ENC) Utility which is used to graphically
configure the primary and backup communication routes between ESTeem 195Ea’s in the network. The ENC Utility can be
installed from the ESTeem Resource Disk or from the ESTeem web site (www.esteem.com). Chapter 4 (Utilities and Features) of
this User’s Manual will guide you in the installation of the software and give a brief overview of operation of the ENC Utility, but a
detailed User’s Guide is available both on the ESTeem Resource Disk and in the Help section of the program itself.
The ESTeem Model 195Ea can also be programmed through the internal Web interface. If you do not have access to the ENC
Utility you can program the 195Ea for operation directly in the modem as detailed in Chapter 5.
3. Install the ESTeem hardware and test communication. After the ESTeem Model 195Ea’s programming, install the
hardware in each remote location. Chapter 8 of this User’s Manual describes the antenna specifications, mounting options and the
configuration of the pole mounting hardware for the ESTeem. For instructions on testing and troubleshooting the wireless link,
refer to Appendix F (Troubleshooting).
MODEL 195Ea HARDWARE LAYOUT
To begin the configuration, unpack the ESTeem Model 195Ea shipping boxes and locate the items contained below for initial
configuration. Take a few minutes to inventory your equipment before you proceed. Report any missing or damaged items to
Customer Support (509-735-9092) as soon as possible. Each node in your ESTeem Model 195Ea’s network may have different
hardware components based upon the final installation location (i.e Outdoor, Indoor, Point-to-point or Muti-Point). Antenna types,
cable lengths, power supplies may be different, but the following items will be required for basic setup:
Model 195Ea
AA109 Resource Disk
Antenna
(XXX Displayed)
(2) Ethernet Cables
Power Supply
(AA175.2 Displayed)
Serial Interface Cable
(AA6021.1)
Note: Your accessory model numbers may vary from the above, but you will need to locate each of above items to continue
configuration.
Revised: 23 Aug 11
2-1
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CHAPTER 2
STARTING OUT
RS-232
Reset Switch Data Port
Status
LED
Receive
LED
Transmit
LED
Second
Ethernet
Port
RS-232
Configuration
RJ-45 10/100BaseT
Ethernet Port
Aux Power
LED
12 VDC Input
(Auxiliary
Connector )
Figure 1: 195Ea Front Panel Overview
Power over
Ethernet LED
Figure 2: 195Ea Antenna Overview
Revised: 23 Aug 11
2-2
EST P/N AA107A
CHAPTER 2
STARTING OUT
MODEL 195Ea HARDWARE CONFIGURATION
The following steps should be completed to begin configuration of the ESTeem Model 195Ea:
1.
Connect the antenna to the antenna connector on the ESTeem Model 195Ea (Figure 3). For a single antenna use Antenna Port
A and connect both if using dual antennas.
2.
Assemble the 195Ea hardware
as shown in Figure 4.
Technical Tips:
1. Configure the Model
195Ea prior to mounting.
2. Attach antenna to the
Model 195Ea before
powering up.
3. There is no On/Off
switch on the 195Ea.
Figure 3: Antenna Configuration Diagram
AA175.2
Power Supply
Figure 4: Hardware Configuration Diagram
Revised: 23 Aug 11
2-3
EST P/N AA107A
CHAPTER 3
EXAMPLE APPLICATIONS
MODES OF OPERATION
The ESTeem Model 195Ea is a sophisticated wireless networking device that can be configured for multiple modes
of operation. Determining the correct mode of operation for the ESTeem is the first step in creating a reliable
wireless network. This chapter will explain each mode of operation, provide example applications and detailed
programming information for each mode. Please review the following modes of operations. If you do not see an
example of your application, please contact ESTeem support at 509-735-9092 for help in selecting your mode of
operation.
Ethernet Bridge Mode (AP Bridge)
The most commonly used mode of operation with the ESTeem Model 195Ea is the Ethernet bridge mode. The
Ethernet bridge mode will connect two or more ESTeem 195Ea’s while passing all network traffic that arrives in both
the wireless and connected Ethernet ports; including all global network traffic (Figure 1). This mode will work in
most wireless applications of the 195Ea to wirelessly connect two or more remote Ethernet devices or networks.
The Ethernet bridge mode is also used in repeating (Figure 2) and in self-healing Mesh networks (Figure 3) for fixed
(non mobile) applications.
Example Applications






Building to building remote wireless LAN networks
Point to point wireless Ethernet communication devices
Multi-point wireless Ethernet networks
Remote Supervisory Control and Data Acquisition (SCADA) networks
Redundant, self-healing Mesh networks
Fixed locations with mobile ESTeem 195Ea’s
Applications Where Ethernet Bridge Mode Not Used
 Mobile applications (see Mobile Clients)
 Connections to large Ethernet traffic networks such as large office buildings or plant networks (see Router
modes)
Figure 1: Point to Point Example
Revised: 6 Sep 11
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CHAPTER 3
EXAMPLE APPLICATIONS
Figure 2: Ethernet Bridge with Repeater
Figure 3: Multipoint Bridge with Mesh Networking
Revised: 6 Sep 11
3-2
EST P/N AA107A
CHAPTER 3
EXAMPLE APPLICATIONS
Router Modes (AP Router and AP Masquerade)
The ESTeem 195Ea can be configured as a network router or network firewall between the Ethernet LAN
connection and the wireless network of remote locations. The router modes are used to limit the network traffic from
a busy Ethernet network connection to only those specific IP address used on the wireless network (see Figure 4).
The Ethernet router mode (AP Router) will allow bi-directional communication from the Ethernet LAN connection to
the wireless network. The Ethernet firewall mode (AP Masquerade) will allow Ethernet devices in the wireless
network to request information from the Ethernet LAN network and receive a response, but no traffic can be
generated from the Ethernet LAN side.
Example Applications
 Wireless Ethernet networks connected to large company or plant Ethernet LAN networks (AP Router)
 Wireless Ethernet networks with a requirement for network isolation from the plant or company network
(AP Router)
 Shared Ethernet connection to direct Internet service (DSL, Cable, T1, etc.) (AP Masquerade)
Applications Where Ethernet Router Mode Not Used
 Mobile applications (see Mobile Clients)
 Simple network connections only using a single IP network subnet (see Ethernet Bridge modes)
Figure 4: Router Mode Example
Revised: 6 Sep 11
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CHAPTER 3
EXAMPLE APPLICATIONS
Mobile Client Modes (EtherStation, Station Router or Station Masquerade)
The ESTeem 195Ea can also be configured to function as a mobile client. The client modes will allow the 195Ea to
seamlessly roam between other 195Ea configured as Access Points (AP). These Access Points can be ESTeem
195Ea’s configured in one of the three Access Point modes (AP Bridge, AP Router or AP Masquerade – see above).
The client modes will allow mobile Ethernet devices to connect to each other or to an Ethernet LAN through the fixed
AP (Figure 5).
The EtherStation mode is used to connect a single Ethernet device to the ESTeem 195Ea. If you are connecting the
195Ea to multiple Ethernet devices in a mobile mode, the Station Router or Station Masquerade will be required.
The Station Router will allow bi-directional communication between the Ethernet devices connected to the 195Ea
and the wireless network, while the Station Masquerade will serve as a firewall on the Ethernet side.
Example Applications
 Mobile applications where the 195Ea will change links often between fixed Access Points
 Long range mobile client networks
 Public safety applications for police, fire and EMS
Applications Where Mobile Client Mode Not Used
 Fixed locations using Ethernet Bridging or Routing
 Wireless Ethernet networks with repeaters
Figure 5: Router Mode Example
Revised: 6 Sep 11
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CHAPTER 3
EXAMPLE APPLICATIONS
PROGRAMMING EXAMPLES
Once the mode of operation for the ESTeem has been
determined, you are now ready to program the Model 195Ea for
use. ESTeem has created a simplified network programming
utility call the ESTeem Network Configuration (ENC) Utility. This
ENC Utility will be used in all the following programming
examples. For detailed instructions on installing the ENC Utility,
please refer to the User’s Guide (found in the ESTeem Resource
CD or Utility program itself) or Chapter 4 of this User’s Manual
Technical Tip: The ENC Utility calculates the
wireless link information based upon exact
ESTeem serial numbers. The serial numbers
listed in the following examples are for example
only. Enter the correct ESTeem serial numbers
for your application.
Adding ESTeems to ENC Utility and Changing Name
Each of the example applications will use the following procedure to add and rename ESTeem 195Ea’s.
1.
Consult the ENC Utility’s User Guide on how the create a new wireless network. Once you have a blank
network configuration page (Figure 6), select , select ESTeem from the menu items to display the drop down
menu, then select New>New ESTeem.
Figure 6: Adding ESTeem to Blank ENC Configuration Page
2.
Enter in the ESTeem Model 195Ea serial numbers used for
the example (for example enter E-14000 in the Set Serial
Number Box) and press the OK button (Figure 7). The ENC
Utility will look up the ESTeem 195Ea’s serial number in the
database and match the correct Wireless LAN MAC (WLAN
MAC) address to the modem. This WLAN MAC address will
be displayed above the modem symbol on the screen (Figure
8).
Revised: 6 Sep 11
3-5
Figure 7: Enter the Serial Number
EST P/N AA107A
CHAPTER 3
EXAMPLE APPLICATIONS
Figure 8: Main Office ESTeem 195Ea
3.
To change the name of the ESTeem 195Ea from the WLAN MAC address to “Main Office” (or any other
location name) to match the example configuration, Right-Mouse click on the ESTeem icon and select
Change>Change Modem ID (Figure 9). Enter “Main Office” in the pop-up window and select OK.
4.
Duplicate the above procedure for each ESTeem 195Ea added to the network.
Figure 9: Change Modem ID
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CHAPTER 3
EXAMPLE APPLICATIONS
Ethernet Bridge Mode Example 1 (Figure 1)
Point to Point Ethernet Bridge
(2) ESTeem Model 195Ea
Serial Numbers: E-14000 (Main Office) and E-14001 (Remote Office)
1.
Add the two ESTeem Model 195Eas to the network using the above procedure. Once both ESTeem 195Eas
are on the configuration page, create a
wireless link by clinking on one of the two
connection boxes and dragging a line to the
other modem (Figure 10).
5.
Verify both ESTeem modems are connected
to the same switch as the computer running
the ENC Utility and send the configuration to
both modems at the same time by selecting
ESTeem>ESTeem Configuration>Send
Configuration to All ESTeems (Figure 11).
6.
Once the ENC Utility has downloaded the
configuration for both ESTeem 195Eas, the
status box around the ESTeems will change
from yellow to blue. This indicates that the
configuration was completed successfully
and the ESTeem 195Ea’s are ready to be
installed in the application.
Figure 10: Create Wireless Link
Figure 11: Send Configuration to ESTeems
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Ethernet Bridge Mode Example 2 (Figure 2)
Point to Point with Repeater Ethernet Bridge
(3) ESTeem Model 195Ea
Serial Numbers:
E-14000 (Main Office)
E-14001 (Remote Office)
E-14002 (Repeater)
1. Using the above procedure, enter the three
ESTeem 195Ea’s into the ENC Utility. Your
layout should appear like Figure 12.
2.
3.
Move the ESTeem 195Ea icons on the
screen to simulate the layout of the
diagram. Draw connection lines between
the modems to make the wireless link in the
same order as the network layout
(Figure 13).
Figure 12: Example 2 Modems
Verify all ESTeem modems are connected to the same
switch as the computer running the ENC Utility and send Technical Tip: Although it does not matter
the configuration to both modems at the same time by where the ESTeem icons are located on the
selecting ESTeem>ESTeem Configuration>Send
screen, putting them in the same layout as the
Configuration to All ESTeems. Once the ENC Utility has application makes it easier to visually verify the
downloaded the configuration for both ESTeem 195Ea’s, network connections.
the status box around the ESTeem‘s will change from
yellow to blue. This indicates that the configuration was completed successfully and the ESTeem 195Ea’s are
ready to be installed in the application.
Figure 13: Example 2 Layout
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Ethernet Bridge Mode Example 3 (Figure 3)
Point to Multipoint with Mesh Repeater Links
(6) ESTeem Model 195Ea
Serial Numbers:
E-14000 (Main Office)
E-14001 (Remote Office)
E-14002 (Repeater)
E-14003 (Remote Site 1)
E-14004 (Remote Site 2)
E-14005 (Remote Site 3)
1.
Using the above procedure
ESTeem Model 195Eas, add the
195Eas for this example and
location.
Your layout should
Figure 14.
for adding
six ESTeem
rename by
appear like
2.
Move the ESTeem 195Ea icons on the screen Figure 14: Example 3 Modems
to simulate the layout of the diagram. Draw
connection lines between the primary wireless
links modems in the same order as the network layout (Figure 15).
Figure 15: Example 2 Layout
3.
To create the backup link between Remote 1 and Remote 2 and the other backup link from Remote 2 to the
Remote Office, draw a wireless connection as you would on the primary link. Double-click on the line created.
The Link Editor box will be displayed (Figure 16). Any Path Length greater than 1 will display as a dashed line
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Figure 16: Backup Link Configuration
indicating a backup link in the repeater Mesh configuration (Figure 17). For detailed instruction on Mesh
network configuration, refer to Chapter 7 of this User’s Manual.
4.
Verify all ESTeem modems are
connected to the same switch
as the computer running the
ENC Utility and send the
configuration to all modems at
the same time by selecting
ESTeem>ESTeem
Configuration>Send
Configuration to All ESTeems.
Once the ENC Utility has
downloaded the configuration
for both ESTeem 195Ea’s, the
status
box
around
the
ESTeem‘s will change from
yellow to blue. This indicates
that the configuration was
completed successfully and the
ESTeem 195Ea’s are ready to
be installed in the application.
Figure 17: Mesh Network Configuration
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Ethernet Router Mode Example (Figure 4)
Point to Multipoint Router Mode
(4) ESTeem Model 195Ea
Serial Numbers:
E-14000 (Router at Network)
E-14001 (Remote Site 1)
E-14002 (Remote Site 2)
E-14003 (Remote Site 3)
1.
Using the above procedure for adding
ESTeem Model 195Eas, add the four
ESTeem 195Eas for this example and
rename by location. Your layout should
appear like Figure 18.
2.
Move the ESTeem 195Ea icons on the
screen to simulate the layout of the
diagram. Draw connection lines between
the wireless links modems in the same
order as the network layout (Figure 19).
Figure 18: Router Mode Example Modems
Figure 19: Router Example Layout
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3.
By default, the ENC Utility sets all ESTeem modems in AP Bridge
mode. To change the Plant Router ESTeem to AP Router mode,
double-click on the icon to bring up the ESTeem Summary window
and press the Edit button (Figure 20).
4.
Change the Mode of Operation from AP Bridge to AP Router
(or Masquerade if desired) and press the Next button at the bottom
of the window (Figure 21).
Figure 20: ESTeem Summary Page
Figure 21: AP Router Configuration
5.
Continue through the configuration screens setting the AP
Router addressing to match the IP address ranges for your
network. For help with setting the router addressing please
refer to Router Address Examples later in this chapter. You
will end on the screen in Figure 22. Press the Finish button to
return to the configuration page.
6.
Verify all ESTeem modems are connected to the same switch
as the computer running the ENC Utility and send the
configuration to all modems at the same time by selecting
ESTeem>ESTeem Configuration>Send Configuration to All
ESTeems.
Once the ENC Utility has downloaded the
configuration for both ESTeem 195Eas, the status box around
the ESTeems will change from yellow to blue. This indicates
that the configuration was completed successfully and the
ESTeem 195Eas are ready to be installed in the application.
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Figure 22: ESTeem Summary Page
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Mobile Client Mode Example (Figure 5)
EtherStation, Station Router and Station Masquerade Modes
(3) ESTeem Model 195Ea
Serial Numbers:
E-14000 (EtherStation)
E-14001 (Station Router)
E-14002 (Station Masquerade)
Setting the ESTeem for Mobile Client (station) mode with the ENC Utility is different than
the Bridge/Router or Access Point (AP) modes. ESTeem modems configured in as a
Mobile Client will not link with a specific fixed modem; but will roam between any 802.11
Access Point with the correct Network Name (SSID) and Encryption. The ESTeem
configured as a client is also not set on a specific operating frequency (channel) but will
scan all channels looking for the AP. Use the following procedure to configure an
ESTeem 195Ea in one of the three mobile client modes:
1.
Starting a new network of ESTeem 195Eas in
Mobile Client mode is the same as any of the
Bridge modes except when you are asked for the
frequency (channel) of operation, select “Station”
(Figure 23).
2.
Add the three mobile client modems to the ENC
Utility configuration page as instructed above and
set the Modem ID to match the three modes of
operation. Your configuration will appear as in
Figure 24.
Technical Tip: The ESTeem 195Eas in Mobile
Client modes do not have a specific frequency
of operation as can be seen in Figure 24.
Figure 23: Station
Figure 24: Station Mode Example Modems
EtherStation
3.
By default, the ENC Utility sets all station mode ESTeem
modems to EtherStation mode.
The only adjustment
necessary to the EtherStation modem in our example is to
enter the connected Ethernet device’s MAC address. The
ESTeem 195Ea will “clone” the Ethernet MAC address of the
connected Ethernet device. To configure the EtherStation
modem, double-click on the icon to bring up the ESTeem
Summary window and press the Edit button (Figure 20).
4.
EtherStation mode should be selected in the Mode of
Operation. Press the Next button at the bottom of the
window to continue. Enter the connected Ethernet device’s
MAC address in the “Device MAC Address” box (Figure 25)
and press the Next button at the bottom of the window to
continue.
Figure 25: MAC Address Entry
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5.
Verify the encryption settings are correct for the 802.11
AP network in which the EtherStation modem will be
working and press the Finish button to return to the
configuration page.
Station Router and Station Masquerade
6.
To configure the two other modems, double-click on
their icons to bring up the ESTeem Summary window
and press the Edit button (Figure 20).
7.
Select Station Router for E-14001 and Station
Masquerade for E-14002 in the Mode of Operation
(Figure 26). Press the Next button at the bottom of the
window to continue.
8.
Continue through the configuration screens setting the
Station Router/Masquerade addressing to match the IP
address ranges for your network. For help with setting
the router addressing please refer to Router Address
Examples later in this chapter.
9.
Verify the encryption settings are correct for the 802.11
AP network in which the EtherStation modem will be
working and press the Finish button to return to the configuration page.
Figure 26: Mode of Operation Selection
10. Verify all ESTeem modems are connected to the same switch as the computer running the ENC Utility and
send the configuration to all modems at the same time by selecting ESTeem>ESTeem Configuration>Send
Configuration to All ESTeems. Once the ENC Utility has downloaded the configuration for both ESTeem
195Eas, the status box around the ESTeems will change from yellow to blue. This indicates that the
configuration was completed successfully and the ESTeem 195Eas are ready to be installed in the application.
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ROUTER ADDRESSING EXAMPLES
The following are examples of the IP addressing and subnets required for the ESTeem Router modes.
Point to Point Access Point Router to Station Router
Station Router
AP Router
Wireless IP Address:
Netmask:
172.16.1.6
255.255.0.0
Default Route:
172.17.1.6
Ethernet IP Address:
172.17.1.6
Netmask:
255.255.0.0
Static Route:
172.20.0.0
Wireless IP Address:
Netmask:
Default Route:
172.16.2.22
255.255.0.0
172.16.1.6
Ethernet IP Address:
172.20.2.22
Netmask:
255.255.0.0
255.255.0.0
gateway:
172.16.2.22
Device
Device
IP address:
Netmask:
Default gateway
172.17.X.X
255.255.0.0
172.17.1.6
IP address:
172.20.X.X
Netmask:
255.255.0.0
Default gateway
172.20.2.22
Figure 27: AP Router Addressing Example
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Stand-Alone Access Point Router and Single Station Router
Computer
IP Address = 172.17.1.1
Netmask = 255.255.0.0
Default Route = 172.17.1.6
ESTeem 195Ea in Access Point
Router Mode
Ethernet IP Address = 172.17.1.6
Wireless IP Address 172.16.1.6
Netmask = 255.255.0.0
Default Route = 172.17.1.6
Note: Wireless Networks and
Station Devices Must Be on
Separate Subnets
Static Routes
Routes for 172.18.0.0 network use
gateway 172.16.2.20
ESTeem 195Ea in Station
Router Mode
Netmask 255.255.0.0
Wireless IP Address
172.16.2.20
Ethernet IP Address
172.18.2.20
Gateway(Route)
172.16.1.6
Connected Ethernet Devices
IP Address 172.18.X.X
Netmask 255.255.0.0
Gateway (Route) =
172.18.2.20
Figure 28: Station Router Addressing Example
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Stand-Alone Access Point Router with Multiple Station Routers
ESTeem 195Ea in
Station Router Mode
Netmask 255.255.0.0
Wireless IP Address
172.16.2.21
Ethernet IP Address
172.19.2.20
Gateway(Route)
172.16.1.6
Connected Ethernet
Devices
IP Address 172.19.X.X
Netmask 255.255.0.0
Gateway (Route) =
172.19.2.20
ESTeem 195Ea in Access Point
Bridge Mode
Bridge IP Address = 172.16.1.7
Netmask = 255.255.0.0
Default Route = 172.16.1.6
Connected Ethernet Devices
IP Address 172.16.X.X
Netmask 255.255.0.0
Gateway (Route) = 172.16.1.6
ESTeem 195Ea in
Station Router
Mode
Netmask 255.255.0.0
Wireless IP Address
172.16.2.22
Ethernet IP Address
172.20.2.20
Gateway(Route)
172.16.1.6
ESTeem 195Ea in Station Router Mode
Netmask 255.255.0.0
Wireless IP Address 172.16.2.20
Ethernet IP Address
172.18.2.20
Gateway(Route) 172.16.1.6
Connected Ethernet
Devices
IP Address 172.18.X.X
Netmask 255.255.0.0
Gateway (Route) =
172.18.2.20
Note: Wireless Networks
and Station Devices
Must Be on Separate
Subnets
Blockage
ESTeem 195Ea in Access Point
Router Mode
Ethernet IP Address = 172.17.1.6
Wireless IP Address 172.16.1.6
Netmask = 255.255.0.0
Default Route = 172.17.1.6
Static Routes
Routes for 172.18.0.0 network use gateway 172.16.2.20
Routes for 172.19.0.0 network use gateway 172.16.2.21
Routes for 172.20.0.0 network use gateway 172.16.2.22
Routes for 172.16.0.0 network use gateway 172.16.1.6
Blockage
Connected Ethernet
Devices
IP Address
172.20.X.X
Netmask 255.255.0.0
Gateway (Route) =
172.20.2.20
Connected Ethernet Devices
IP Address 172.17.X.X
Netmask 255.255.0.0
Gateway (Route) = 172.17.1.6
Figure 29: Complete Router Addressing Example
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ESTeem Network Configuration Utility (ENC)
The ESTeem Network Configuration (ENC) Utility is a software program designed to greatly simplify the configuration of
your ESTeem Model 195E wireless Ethernet network. The ENC Utility will allow graphical, point-and-click configuration
of your network routing, then configure each ESTeem wireless modem for the network as designed (Figure 1). The
ENC Utility will eliminate the need to program or update each ESTeem wireless modem individually. The ENC Utility
can send all wireless modem configuration changes simultaneously to a new or existing network.
Figure 1: ESTeem Network Configuration Utility
The ENC Utility will be used for all wireless network programming in this User’s Manual.
For detailed instructions on the use of the ESTeem Network Configuration (ENC) Utility please refer the ENC Utility
User’s Guide available on the ESTeem Resource CD or in the application itself.
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ESTEEM DISCOVERY UTILITY
The ESTeem Discovery Utility will allow you to
configure the IP address on the Model 195Ea to
match your network regardless of its current IP
subnet. This utility will also allow you to update the
software in the 195Ea and open the web
configuration for that wireless modem.
Installation
To install the Discovery Utility on your computer,
insert the Resource Disk in your CD drive.
Note: The ESTeem Resource Disk is a standalone copy of the ESTeem Web site Figure 2: ESTeem Resource Main Page
(Figure 2). Navigation of the Resource
Disk is as simple as using your web browser. All technical documentation, User’s Manuals and the
ESTeem Utility Program are available on the disk.
1. Place the ESTeem Utility CD in your CD-ROM drive. The CD will auto load the ESTeem main page
Note: If the page does not auto load, open your web browser and set your address line to D:\index.html (Where
D: is the drive letter for your CD-ROM drive).
2. From the Main Page select ESTeem Utilities and click on ESTeem Discovery Utility (Figure 3).
Figure 3: Discovery Utility Download
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Note: This program is saved in a compressed file format. Microsoft Windows XP® will open the file directly, but
other operating systems will require a common compression program such as WinZip available for
download at http://www.winzip.com
3. Double click on the 195EDiscoverySetup.exe file listed in the window to install the program.
Figure 4: Discovery Program Main Page
4. Connect the Model 195Ea to your computer either directly to the Ethernet card or through a HUB/Switch using a
CAT-5e Ethernet cable. The Ethernet port on the 195Ea supports Auto-Negotiation, so either a patch cable or
crossover cable will work. Open the ESTeem Discovery Program and press the Discover Modems button. The
Model 195Ea will be displayed in the program by the Ethernet MAC address and Current IP Address (Figure 4).
Note:
The SSID, Mode of Operation and Modem ID will be adjusted through the ENC Utility or the Web
Configuration Manager...
5. Double-click on the 195Ea you want to program and the Configure IP Address window will be displayed (Figure 5).
Enter an IP address and Subnet Mask for the 195Ea that matches your network subnet and press the OK button to
save this to the ESTeem. You will receive notification that the Configuration was Successful and the 195Ea will
reboot.
Figure 5: Change IP Address Window
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Firmware Updates
To update firmware on any ESTeem Model 195 that is shown on the Discovery program, “right-mouse” click on the
195’s MAC address and select Update from the menu (Figure 6). Once you locate the update file, select the Open
button and the 195 will update, validate and then reboot with the updated operating system.
Figure 6: Discovery Features Menu
Opening Web Browser
To quickly open a web browser page to the IP address programmed in the 195 modem, “right-mouse” click on the
195’s MAC address and select Open Browser from the menu (Figure 6). If your computer is configured for the same IP
subnet at the ESTeem 195 wireless modem, you will be asked to sign in with the Username and Password (Figure 7).
You can now begin programming the Model 195 for your application.
Figure 7: ESTeem Web Page Log-on Screen
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ETHERSTATION STATUS PROGRAM
When configured for EtherStation mode, the Web Configuration Manger is turned off. To gather information from the
195Ea on Access Point, link status and received signal strength you will need to install the ESTeem 195E Status Utility.
The EtherStation Status Utility version 2.0.0.0 or greater provides a new feature that will automatically program the
connected ESTeem 195Ea to match up with the computer running the software. For this feature to function, this
software requires the ESTeem 195Ea to have software version 302.8.102 or greater installed.
This software program is found on the AA109 Resources Disk or available from the ESTeem web site. To install the
utility, please complete the following:
Installation
The ESTeem Discovery Utility will allow you to configure the IP address on the Model 195Ea to match your network.
Install the Discovery Utility on your computer by inserting the Resource Disk in your CD drive.
Note: The ESTeem Resource Disk is a stand-alone copy of the ESTeem Web site (Figure 1). Navigation of the
Resource Disk is as simple as using your web browser. All technical documentation, User’s Manuals and
the ESTeem Utility Program are available on the disk.
1. Place the ESTeem Utility CD in your CD-ROM drive. The CD will auto load the ESTeem main page.
Note: If the page does not auto load, open your web browser and set your address line to D:\index.html (Where
D: is the drive letter for your CD-ROM drive).
2. From the Main Page select ESTeem Utilities and click on EtherStation Status Utility
Note: This program is saved in a compressed file format. Microsoft Windows XP® will open the file directly, but
other operating systems will require a common compression program such as WinZip available for
download at http://www.winzip.com
3. Double click on the 195EStatusSetup.exe file listed in the window to install the program.
4. Connect the Model 195Ea to your computer either directly to the Ethernet card or through a Switch using a CAT-5e
Ethernet cable. The Ethernet port on the 195Ea supports Auto-Negotiation so either a patch cable or crossover
cable will work.
Open the ESTeem Status
Program. Status icons will appear in your system
tray (Figure 8). When the status menu is opened
from the system tray, the status window will be
displayed (Figure 8) to show the Access Point MAC
address and signal strength. The tray icon and
Signal Strength bar will display the colors from
Green, Yellow to Red on progressively poorer signal
or will show Grey if roaming.
Note: This Utility will only operate with an ESTeem
Model 195Ea in EtherStation mode.
Figure 8: EtherStation Status Program
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SETTING LOCAL TIME
The ESTeem Model 195Ea will be shipped from the factory with the internal real-time clock set to Pacific Time. To
change the clock settings to the local time for accurate log file entries:
1. Select Advanced from the top
Menu, then Wireless LAN
Settings>wlan0 device.
Press
the
Next
button
(Figure 9).
2. Select Global Settings>Set
System Time from the menu
and press the Next button to
continue.
3. Select the correct date and
time from the drop-down
menus (Figure 10) and press
the Set System Time button to
save the time to the real time
clock.
Figure 9: Advanced Features Screen
Figure 10: Advanced Features Screen
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CONFIGURING TIME SERVER
Enabling NTP time synchronization services on the ESTeem 195Ea will allow usage of time services from upstream
services to keep the time on the system accurate.
To allow time synchronization, the Model 195Ea must be configured with the NTP Daemon enabled and the
appropriate IP address of the upstream network NTP server.
1. Select Advanced from the menu items and Global Variables (Figure 11).
Figure 11: Advanced Settings Menu
2. Press the Next button and Figure 11 will be displayed. At the bottom of the page are the NTP server
configurations.
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3. The NTP daemon is enabled by selecting YES for NTP ENABLE (Figure 12). When enabled, the NTP
daemon will use time services from upstream services to keep the time on this system accurate.
4. Next, the NTP SERVICE ENABLE should be configured to “YES,” if you want to allow the system to provide
NTP service for clients wishing time synchronization (Figure 12).
Figure 12: NTP Settings
5. The final step in configuring NTP services is to enter the IP address or the host name of the upstream NTP
server.
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6. Once configuration is complete, press the Return to Advanced button.
7. To complete the configuration, select “Commit and Reboot.” The ESTeem 195Ea will now commit the
configuration changes and reboot. (Figure 13)
Figure 13: Advanced Settings Menu
VLAN OPERATION
Virtual LAN (VLAN) systems are rapidly becoming the desired configuration on larger Ethernet networks. The ESTeem
195Ea software will allow the Ethernet modems to transparently pass the VLAN packets for these networks. The
195Ea currently can not be used as a VLAN switch, but will pass VLAN tagged Ethernet packets through the wireless
bridge.
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IGMP SNOOPING
Internet Group Management Protocol (IGMP) Snooping allows the ESTeem 195Ea to operate more efficiently in
networks with high Multicast (UDP, etc.) traffic. IGMP Snooping will define the destination for the Multicast traffic and
send the data to the correct wireless Ethernet modem, not the entire network. This limiting of Multicast traffic to
specific destinations greatly increases the overall network efficiency.
The problem with using multicast traffic over a wireless connection is that multicast packets do not require an
Acknowledge on the protocol layer. If the wireless network misses a data packet on the RF network, that multicast
data packet is lost.
Theory of Operation
There are two types of Ethernet packets on a network, unicast and multicast. Unicast is intended for exactly one
recipient (and ignored by all others). Multicast is intended to be received by multiple recipients. Interested parties can
listen for particular multicast packets, but most nodes ignore it. In any case, the network medium is still utilized no
matter how many nodes are listening. Broadcast packets are a special type of multicast traffic which all nodes always
receive. These are particularly useful for global announcements (Hey, I'm Alice!) and queries (Hey, I'm Alice and I'm
looking for Bob!). More relevantly, it is how hosts on a network find out each other's addresses, and are absolutely
crucial to the proper functioning of a network.
As the network grows physically, it encounters some growing pains. The first is more physical, relating to the cabling
limitations. Bridges solve this problem by joining two physical networks together so they appear to be a single large
network. Through use of bridges, a network can scale to hundreds or even thousands of hosts. There is a downside,
however. Well before the physical limitations of bridging hit, you start to run into efficiency problems, as all traffic has to
travel everywhere on the network. The raw carrying capacity of this shared medium, often referred to as bandwidth, is
the second scaling problem.
Smart bridges, or switches, help alleviate the bandwidth problem by only passing traffic across the bridge if the
destination host was on the other side. This greatly increases the capacity and efficiency of the network by allowing two
pairs of hosts communicating simultaneously on each side of the switched bridge. Only when the packet needs to go
to the other side is both mediums utilized simultaneously for the same packet.
Unfortunately, broadcast and multicast traffic by its very nature must always be relayed across the bridge. While the
number of network nodes may grow linearly, the multicast traffic tends to grow exponentially. This isn't generally a
problem for wired networks, as they have a considerable amount of bandwidth to spare, but wireless networks have, at
best, an order of magnitude less bandwidth to begin with. If a wireless network is bridged with a wired network, while
the absolute numbers are the same, a much higher proportion of the wireless network’s available bandwidth is used up
by multicast traffic. This effect is further magnified if multiple wireless repeaters are in use.
The preferred way of dealing with excess multicast traffic is to put the wireless network on a different sub-network
(subnet) and use a router to join it to the wired network. This ensures that only unicast traffic intended for the wireless
network crosses over, as multicast and broadcast traffic stays within its local subnet. Normally this is fine, but there are
times where you need multicast traffic to span subnets. For IP traffic, this can be obviated by using a multicast-capable
router, but for legacy multicast protocols that were not designed to be routed, another solution must be found.
There are two primary types of communication networks used in wireless Ethernet systems; fixed points
communicating to each other through an Ethernet Bridge and mobile devices communicating to these fixed points.
The fixed point Ethernet bridge communication in the 195Ea is through Repeater Peer links, while the mobile
communication is from the Client modes (EtherStation, Station Router and Station Masquerade) to the Access Points
(Fixed Locations) in the network. Each of these networks handles Multicast traffic differently as explained below.
Ethernet Bridge Mode (Repeater Peers)
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When the ESTeem 195Ea is configured as a repeater peer, all multicast traffic is “wrapped” in a Unicast frame and
sent to all other repeater peers. (Figure 14) This operation allows the ESTeem network to receive an acknowledge
packet and retransmit the data if the packet is lost during transmission. This unicast encapsulation will work regardless
if the protocol can support IGMP or not.
Figure 14: Repeater Peer Operation
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Ethernet Bridge Mode (Repeater Peers) With IGMP Snooping
When the ESTeem 195Ea is configured as a repeater peer, IGMP Snooping is enabled and the network supports
IGMP protocol, the 195Ea will begin to identify the connected Ethernet devices using Multicast transmissions and report
this information to the network. As this process continues, all sites that have Multicast traffic on the wireless network
will only send these requests to the specific ESTeem reporting the Ethernet device (see Figure 15).
Figure 15: Repeater Peer with IGMP Enabled
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UTILITIES & FEATURES
Client Modes
When the ESTeem 195Ea is configured as a mobile client (EtherStation, Station Router or Station Masquerade), there
are two configurations that will increase the reliability of Multicast traffic. The first phase is encapsulation of the
multicast packets, as described in the Repeater Peer, and the second is IGMP Snooping if the network will support the
protocol. The encapsulation of the Multicast packets will operate regardless of the IGMP support to increase the
reliability.
Figure 16: Unicast Packet to All Clients
Figure 17: Unicast Packet to Single Client
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UTILITIES & FEATURES
Multicast Encapsulation
To enable Multicast Encapsulation, select Advanced>Wireless LAN Settings>wlan0 device and press the Next
Button (Figure 18). Select wlan0_EncapsulateMulitcast to either Multicast (for all Multicast including Broadcast) or
Broadcast (Broadcast only). Press the Accept Button and then Commit and Reboot.
Figure 18: Multicast Enable
Enabling IGMP Snooping
To enable the ESTeem 195Ea for IGMP Snooping, select Advanced>Bridge Variables and press the Next Button
(Figure 19). Select IGMP Snoop to YES, press the Accept Button and then Commit and Reboot.
Figure 19: Repeater Peer with IGMP Enabled
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UTILITIES & FEATURES
Simple Network Management Protocol (SNMP)
The ESTeem 195Ea supports SNMP Version 1 (SNMPv1) and Version 2 (SNMPv2c) protocol. This protocol enables
any SNMP server to view the status of the wireless network while the system is in operation. The following are a list of
the Management Information Base (MIB) items that are supported in the ESTeem 195Ea and their MIB location:
MIB Name
MIB Directory Location
Notes
System Temperature
in C * 1000
Uptime
ModemID
Serial Number
Model
Firmware Version
System Mode
Free Memory
Idle CPU
EST-MIB::sysInternalTemp.0
HOST-RESOURCESMIB::hrSystemUptime.0
EST-MIB::sysIdentifier.0
EST-MIB::sysSerialNumber.0
EST-MIB::sysModel.0
EST-MIB::sysFirmwareRevision.0
EST-MIB::sysMode.0
UCD-SNMP-MIB::memTotalFree.0
UCD-SNMP-MIB::ssCpuIdle.0
[[ per-interface ]]
IP Address
Port Speed
Port Status
Mac Address
IF-MIB::ifAddress
IF-MIB::ifSpeed
IF-MIB::ifOperStatus
IF-MIB::ifPhysAddress
[[ per-wlandev entry ]]
Device Name
MAC Address
Mode
Frequency
Bandwidth
SSID
BSSID
Operational Rates
Basic Rates
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System Update
User-specified “nickname” for ESTeem
ESTeem serial number
ESTeem model number
Firmware revision
AP_BRIDGE/STA_ETHERSTA, etc
Total Free Memory
Percentage of CPU Idle
In bps
EST-MIB::wirelessDevicesNumber.0
EST-MIB::wirelessDeviceTable.1.wName.1
ESTMIB::wirelessDeviceTable.1.wMacAddress.1
EST-MIB::wirelessDeviceTable.1.wMode.1
EST-MIB::wirelessDeviceTable.1.wFreq.1
ESTMIB::wirelessDeviceTable.1.wBandwidth.1
EST-MIB::wirelessDeviceTable.1.wSSID.1
EST-MIB::wirelessDeviceTable.1.wBSSID.1
ESTMIB::wirelessDeviceTable.1.wOpRates.1
ESTMIB::wirelessDeviceTable.1.wBasRates.1
4-15
Wireless Port Identification
Name of device (wlan0 standard)
MAC address of WLAN port
Current Mode ap=access point, sta=station
mode and airscope
Frequency in MHz
Bandwidth (5, 10, or 20 MHz if used)
Service Set Identification
Basic Service Set Identification
List of RF Data Rates in Rate Set
List of RF Basic Rates for status messages
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UTILITIES & FEATURES
[[ peer table entry ]]
EST-MIB::wirelessPeersNumber.0
wlan device
Peer MAC Address
isRepeater?
isAP?
isAssocSta?
isAdhoc?
Frequency
current rate set
last rx signal
last rx noise
BSSID
SSID
isValid?
EST-MIB::wirelessPeerTable.1.pDevice.1
EST-MIB::wirelessPeerTable.1.pMacAddr.1
EST-MIB::wirelessPeerTable.1.pRepeater.1
EST-MIB::wirelessPeerTable.1.pAP.1
EST-MIB::wirelessPeerTable.1.pAssoc.1
EST-MIB::wirelessPeerTable.1.pAdhoc.1
EST-MIB::wirelessPeerTable.1.pFreq.1
EST-MIB::wirelessPeerTable.1.pCurRates.1
EST-MIB::wirelessPeerTable.1.pSignal.1
EST-MIB::wirelessPeerTable.1.pNoise.1
EST-MIB::wirelessPeerTable.1.pBssid.1
EST-MIB::wirelessPeerTable.1.pSSID.1
EST-MIB::wirelessPeerTable.1.pCurrent.1
last rx
EST-MIB::wirelessPeerTable.1.pLastRxl.1
last tx
EST-MIB::wirelessPeerTable.1.pLastTx.1
ESTMIB::wirelessPeerTable.1.pCurrentRate.1
current tx rate
All entries in the Peer Table will have a
device entry index, both ESTeem and
other wireless devices
Total number of peer entries in table
index into the wirelessDeviceTable (each
entry will have a unique number
MAC address of peer
Is the peer an ESTeem repeater
Is the peer an Access Point
Is the peer an Mobile Client
Is the peer an AdHoc Station (802.11 only)
Frequency in MHz
Current Operating Rates
Receive Signal in –dBm
Background Noise in –dBm
Basic Service Set ID (In Hex)
SSID in Text
True if peer info is for a “current” peer.
seconds since last received packet from
peer
seconds since last transmitted packet to
peer
current tx rate in bps.
Downloading MIB Tables
To download the MIB items listed above and import into your SNMP server, log into any ESTeem 195Ea and select the
About page (Figure 20). Press the Download MIB Files hyperlink on the page and save the files to your computer.
Figure 20: MIB Table Download
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CHAPTER 5
WEB CONFIGURATION
The ESTeem Model 195Ea Web Configuration Manager is an internal web server that will allow setup, monitoring and
diagnostics of all operating parameters in the Model 195Ea. The 195Ea can be configured using any current web
browser software such as Internet Explorer, Mozilla, FireFox or Google Chrome®.
LOGGING ON TO THE ESTeem WEB PAGE
1. Using your Web Browser connect to the Model 195Ea
Web Page with the IP Address that you have assigned it
in Chapter 3.
2. You will now see the Log-on Menu on Figure 1. To enter
the Model 195Ea Top Menu you will need to log into the
system with a User Name and Password.
3. For the User Name enter admin and press the Enter key
(). The User Name is defined at the factory and
is not changeable.
4. Enter your Password and press the Enter key ().
If this is the first time the Model 195Ea has been Figure 1: ESTeem Web Page Log-on Screen
programmed and Password was not changed from the
factory default values, proceed with the steps below to access the Configuration Menu.
 The factory default Password is also admin. Enter admin for the Password and press the Enter key
().
 Note: All characters are lower case.
5. After Log-in the next screen displayed will be the Model 195Ea Top Menu page (Figure 2). This example screen
shows the Top Menu screen.
Note: Throughout the Configuration Manager are Help Screens that can be accessed for further information
on each item.
Figure 2: Top Menu Screen
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WEB CONFIGURATION
WEB CONFIGURATION MANAGER SECTIONS
The following sections will describe the features in each of the main and sub menu items in the web pages. For stepby-step examples of how to configure the Model 195Ea in different Modes of Operation, please refer to Chapter 5 –
Example Configurations.
Top Menu
The Top Menu will be the default web page for the Model 195Ea Web Configuration Manager (Figure 2). This section
will display the current configuration summary for the Model 195Ea and allow changing of the default password. This
page will also display the Modem ID field that can be used to easily identify the 195Ea you are programming. This
Modem ID field can be set to any text combination for example, location name, GPS coordinates or addresses.
Setting the Modem ID
1. The Modem ID field can be adjusted
under the Global Variables of the
Advanced Menu tab. Select Global
Variables and press the Next button.
Figure 3 will be displayed.
2. Scroll to the bottom of the Global
Variables window and enter the text you
would like displayed in the Modem ID
field (Figure 4). When complete, press
the Save Settings button and the
Commit Changes button on the next
screen to save the name to the 195Ea.
Figure 3: Global Variables Screen
Figure 4: Modem ID Field in Global Variables Screen
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WEB CONFIGURATION
Status Menu
The Status Menu provides a summary of the current mode of operation, system time, processor usage,
internal temperature and status of the communication links to other wireless devices. An example is shown
below in Figure 5. Most of the communication troubleshooting is done in this section of the Web
Configuration Manager.
Figure 5: Status Screen
Peer Status Table
The Peer Status submenu lists the connected wireless devices (Model 195Ea’s), their signal strength, data rate and
time of last packet sent. Press the View Peer Table link and Repeater Peer Status Table will be displayed (Figure 6).
For a detailed analysis of the information provided in this table, please review Appendix F – Troubleshooting.
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WEB CONFIGURATION
Associated Station – This section will list all the associated stations that are attached to the Access Point. These will be
other Model 195Ea’s in one of the three mobile Client modes.
Repeater Peers – This section will list all connected 195Ea repeater peers by their Wireless MAC address. For
detailed information on repeaters, see Chapter 6 – Repeating Features.
Access Points – This section will list all other 195Ea Access Points that are sharing the operating channel (frequency)
of the 195Ea. You can also note that the Repeater Peers listed above are also included in this list.
Figure 6: Peer Table Screen
Counter Details
The Counter Details submenu will summarize all transmitted and receive data packets for the Model 195Ea (Figure 5).
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WEB CONFIGURATION
System Log Screen
The Log Screen is a trouble-shooting tool that shows the current log of Model 195Ea system messages. See Figure 7.
The System Details button will display a more detailed system diagnostics that may be requested by ESTeem
technical support.
Figure 7: System Log Screen
Setup Screen
The Setup screen allows the step-by-step configuration of the Model 195Ea. Please see Chapter 5 for complete
description on System Setup menu and examples for system configurations. See Figure 8.
Figure 8: Setup Screen
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WEB CONFIGURATION
Advanced Configuration Screen
The Advanced screen allows the user to access all configuration parameters. The parameters are grouped based
upon their variable. It is recommended that only advanced users of the Model 195Ea enter this section unless
instructed by ESTeem technical support. See Figure 9.
Figure 9: Advanced Features Screen
Backup Screen
The Backup Screen saves the current configuration in the Model 195Ea to a file on the computer or network. See
Figure 10.
Pressing the Backup Button will create a configuration file that can be saved to the computer. This saved file can then
be later opened, if necessary, by the Restore menu to quickly replace a Model 195Ea with a spare modem.
Figure 10: Backup Screen
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WEB CONFIGURATION
Restore Screen
The Restore screen is used to restore the 195Ea to factory defaults, return to the last saved configuration or to access
the configuration files that were backed up to the computer. See Figure 11.
Figure 11: Restore Setting Screen
Factory Default – Returns the Model 195Ea to all factory default values.
Last Committed Changes – This button will remove any changes to the modem that have been done since the last
committed changes. The last committed changes will be read from the Flash file and reset in the Model 195Ea.
File – Pressing this button will bring up a selection of where the restore file was saved during the Backup (Figure 12).
Select “Upload via web browser” to browse for files saved on a local computer or select “Download from an http or ftp
URL” for files saved on a network or over the Internet.
Figure 12: Restore From Local File Screen
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WEB CONFIGURATION
Software Update Screen
The Software Update feature allows the user to update the latest Model 195Ea operating system software from a file
supplied by the factory or the Internet to the Model 195Ea’s flash memory. To upload from a file on your computer,
select Upload via web browser and a file selection window will be displayed. To upload directly from the Internet, select
Download from an http or ftp URL and enter the site address. See Figure 13.
Figure 13: Software Update Screen
System Reboot Screen
The Reboot screen allows the user to reset the Model 195Ea. See Figure 14.
Figure 14: System Reboot Screen
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CHAPTER 6
SERIAL APPLICATIONS
USING THE RS-232 PROGRAMMING PORT
Any terminal emulation program that can run with VT100 emulation can be used for this configuration of the ESTeem.
Most Windows users will probably use either Hyper Terminal or the Terminal Emulation in the ESTeem Utility program.
Configure your RS-232C port for a Baud Rate to 38,400, Data Bits to 8, Parity to None, Stop Bits to 1 and Handshaking
to None. Set the Emulation type to VT100. Once your ESTeem has an IP address, you can attach the ESTeem to
your network and use the Web Server for further programming.
Programming Using the RS-232 Port
1. When configuring the Model 195Ea for the first time you can use the ESTeem RS-232C Configuration Menu to
setup the basic operating parameters such as assigning the IP Address, IP Net Mask, and Gateway IP Address.
2. Connect the serial cable (EST P/N: AA0621.1) between the RS-232 connector (RJ-45) on the Model 195Ea’s
programming port to the serial port on the computer.
3. Plug the Model AA175 power supply into a wall socket and connect an Ethernet patch cable from the Model 195Ea
Ethernet port to the J1 (Data&PWR) port on the power supply. The Power over Ethernet (POE) LED on the front of
the ESTeem should be illuminated.
4. If your computer is configured properly, you will see the ESTeem Model 195Ea booting sequence on your Terminal
Emulation program. Once the ESTeem boot sequence is complete (approximately 45 seconds) you will receive this
message:
“Please press Enter to active this console.”
If you don’t see this message press the Reset button on the front panel of the Model 195Ea and/or check the
programming of your RS-232 port.
5. Press the Enter key and you will be at the Configuration Menu 195Ea login prompt. See Figure 1.
6. To enter the Model 195Ea Main Menu you will need to log into the system with a login name and password.
7. If this is not the first time configuration of the Model 195Ea, see your network systems administrator for the
password.
8. At the 195Ea login prompt type admin for the login name and press the Enter key (). The login name is
defined at the factory and is not
changeable by the user. Note
that all characters are lower
case.
9. If this is the first time the Model
195Ea has been programmed or
the Password was not changed
from the factory default values, the
factory default password is also
admin.
Enter admin for the
password and press the Enter key
().
The
ESTeem
Configuration Welcome Screen
(Figure 2) will now be displayed.
Figure 1: RS-232 Port Log-in Screen
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SERIAL APPLICATIONS
Note: All characters are lower case.
10.
To set the IP address in the ESTeem 195Ea, type the letter “A” and press the Enter key. Enter the value for the IP
address, Netmask and default route pressing the Enter key after each entry.
Figure 2: RS-232 Welcome Screen
11.
After the basic parameters have been entered into the Model 195Ea you will need to commit the changes to the
Model 195Ea (Figure 3). Press the C key and then Enter. The changes will be saved to flash memory. You can
use programming features in the ESTeem Web Configuration Manager to configure the unit for your application.
Figure 3: RS-232 Welcome Screen
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CHAPTER 6
SERIAL APPLICATIONS
USING THE RS-232 DATA PORT
The ESTeem 195Ea has a serial data port that can provide RS-232 communication between two or more serial
devices using the wireless broadband link. The serial data is encapsulated and transferred as a standard Ethernet
packet over an operating 195Ea wireless Ethernet system. The configuration for a serial 195Ea network will be the
same as an Ethernet or a serial (RS-232) based communication network.
The serial interface option can be used to link two or more serial devices in a new or existing system. The serial data
has very little impact on the network bandwidth and will allow for both Ethernet and serial applications simultaneously.
A possible application would be installation of the 195Ea in an existing serial based network that was looking for future
upgrade to an Ethernet based system. Another would be using the high-bandwidth Ethernet connections to provide a
link to remote video hardware while also providing a
serial link to the existing PLC in a SCADA type
Second
application.
RS-232
RS-232
RJ-45 10/100BaseT
Reset Switch Data Port
SERIAL CONNECTIONS
Status
LED
Ethernet
Port
Configuration
Ethernet Port
Aux Power
LED
The RJ-45 serial data port is the far-left port on the
face of the 195Ea (Figure 4). Using the ESTeem
AA0621 interface cable, the 195Ea can be connected
to a standard DTE-device (PC) with a male 9-pin SubD connector. The complete cable configuration is
available in Appendix C – Interface Ports.
Receive
LED
Second Ethernet Port
Transmit
LED
Power over
Ethernet LED
12 VDC Input
(Auxiliary
Connector )
Figure 4: 195Ea Front Panel Overview
Installation of the serial option also includes installing
a second 10/100 Base-T Ethernet interface. This
second Ethernet port can be used to Bridge to the first Ethernet port (ETH_0) and the wireless link working as a twoport HUB when configured in the AP Bridge mode. This second Ethernet port can also be configured as a Router port
between the wireless and the first Ethernet port in AP Router mode (Figure 5).
AP Bridge Mode
In the AP Bridge mode, both Ethernet ports (primary and secondary) and the wireless port (WLAN_0) are configured
for a common IP subnet and share the same IP address.
AP Router Mode
In the AP Router mode, the two Ethernet ports will be on the same IP subnet, while the wireless port will be on a
separate IP subnet. If desired, the secondary Ethernet port (ETH_1) can be configured for a 3rd subnet (i.e. subnet C).
This requires advanced configuration and routing tables specific to the particular networks.
SERIAL CONFIGURATION
Ethernet 1
Bridge
Wireless
Ethernet 1
Ethernet 2
Router
Ethernet 2
Wireless
Subnet 1
Subnet 2
Figure 5: Bridge and Router Configuration for Ethernet Ports
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SERIAL APPLICATIONS
Figure 6: Serial Configuration Screen
Configuration of the serial port is completed during the standard setup of the 195Ea. After completion of the Repeater
Peer configuration screen, the Serial Port Setup screen (Figure 6) will be displayed. Each section in the Serial Port
Setup screen is described in detail with the following:
Enable the RS-232 Data Port
Enabling the serial data port allows the modem to send RS-232 data over the broadband wireless connection
established with the ESTeem repeater peers. The modem can be configured in a point-to-point or point-to-multipoint
system. Select Yes if you wish to enable the serial data port.
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SERIAL APPLICATIONS
Mode of Operation
There are two distinct modes of operation for the serial port in the 195Ea. The Redirector mode will provide two-way
serial communication between two or more serial devices, while the Terminal Server mode will allow serial
communication to a specific remote site by connecting through telnet or SSH. Select one of the following modes of
operation:
Full Redirector Mode - This mode allows bi-directional RS-232 data communication with other ESTeem Model 195Ea’s.
The RS-232 data transmission will appear transparent to the connected devices as if a serial cable is connected
between the two ports. This mode will also be used in a multi-point serial network were all serial devices will need bidirectional communication (Figure 7).
Figure 7: Serial Full Redirector Example
Terminal Server Mode - This mode of operation translates RS-232 serial data into a network-oriented terminal protocol,
such as telnet or SSH. This mode would be selected if an interactive RS-232 session at remote locations is desired
over the wireless Ethernet link.
Baud Rate
Select the data rate of the RS-232 connection to match your serial device.
Data Bits
Select the number of data bits on the RS-232 connection to match your serial device.
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CHAPTER 6
SERIAL APPLICATIONS
Stop Bits
Select the number of stop bits on the RS-232 connection to match your serial device.
Parity
Select the parity of the RS-232 connection to match your serial device.
Flow Control
Select the type of data flow control used on the RS-232 connection. The ESTeem can support Hardware flow control
(RTS/CTS control lines) or Software Flow Control (XON/XOFF). Select None if no serial flow control is necessary.
Maximum Bridge Links for Multicast Packets
This value sets the maximum number of Ethernet bridge links that the multicast packets will be sent through when
used in a multi-point system. A multi-point serial network uses multicast packets (UDP) to send the data to more than
one remote ESTeem. You want to limit the number of network bridge links that these UDP packets will be passed
through to make the network more efficient.
If you are using multiple ESTeem repeater links to send the serial data to remote locations, the value for the maximum
bridge link needs to be increased to a number greater than the longest repeater chain. For example, if you are using
four repeater (peer) links to send the serial data between two or more sites the number will need to be five (5) or
greater (Figure 4).
Destination IP Address
The ESTeem configured for the correct destination IP and port number will send and receive the serial data from
another modem. Set the destination IP address for the ESTeem where the serial data will be sent. If sending to more
than one ESTeem (Multipoint) set to a multicast address (i.e 224.0.0.1).
Note: If you are using the ESTeem 195Ea in a multipoint application (multicast), you must have default
Gateway configured in the ESTeem set to the IP address of the Root Bridge modem.
Serial IP Port Number
The ESTeem configured for the correct destination IP and port number will send and receive the serial data from
another modem. Set the IP port numbers to match where the serial data will be sent. The serial data will not be sent if
both the IP address and port number is not correct.
Maximum Packet Size
This number represents the maximum size of the serial data packet in bytes. If the number of bytes of data in the serial
port buffer exceeds the maximum packet size before the timer or delimiter character is reached, the ESTeem will send
forward the serial packet. For example, if the maximum packet size is set to a value of 100, when the serial port
receives 100 bytes the data will be sent through the wireless connection.
Number of Milliseconds for Packetization
This number represents the time the ESTeem will hold data in the serial data buffer before sending to the remote
ESTeem. This feature is generally used if the serial data does not have a consistent packet length or delimiter
character. For example, if the number of milliseconds is set to a value of 10 the ESTeem will monitor the incoming
serial data stream and any break in characters longer than 10 milliseconds will cause the data will be sent through the
wireless connection.
Delimiter Characters
Enabling and specifying a delimiter character will transmit the data in the serial buffer when the delimiter character is
recognized in the serial data stream. There are two unique delimiter characters that can be configured and enabled
independently.
Terminal Server Control Lines
Enabling this feature will allow the ESTeem in the Terminal Server mode to read and generate modem control lines to
the connected device.
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CHAPTER 7
REPEATING FEATURES
To increase the wireless network’s area of coverage for
both indoor and outdoor applications, the ESTeem 195Ea
utilizes a custom repeating feature that allows increased
coverage areas without the added expense of hard cabling
or adding an additional point to point radio link.
With a conventional IEEE 802.11a Access Point (AP)
network, all of the APs have to be interfaced to a common
Figure 1: Conventional Access Point Diagram
network either by hardwire, see Figure 1, or a separate,
dedicated RF backbone. The Model 195Ea can create this RF backbone, bridge Ethernet networks connected to the wired Ethernet
port and provide the wireless canopy for 195Ea clients simultaneously.
When programmed in any of the three Access Point (AP) Repeater Modes, the Model 195Ea will create a wireless network with
other Model 195Ea units in radio range that are programmed in the AP Repeater Peer table during setup. This feature adds the
increased functionality of repeaters to the typical Ethernet Bridge configuration.
ESTEEM MESH NETWORK
One of the most powerful features of the AP Repeater
Mode is the ability to input multiple communication
routes and designate the priority for each of these routes
to create a wireless Mesh network. The ESTeem Model
195Ea will automatically change communication routes in
the network if a route has failed. The new route will be
based upon the priority level set during configuration.
This wireless Meshing technology allows the RF network
to “self-heal” if any of the communication paths fail.
The routing priority is manually set during the
configuration of the 195Ea. A manual path configuration
is far superior to standard “self-discovery” networks,
because you have direct control over the best RF paths
and can easily identify any failed routes for easy
troubleshooting. For example, Figure 2 shows a typical
wireless Ethernet system used in the Water/Waste Water
Industry. The problem with a standard “self-discovery”
Mesh network is the selection of routes. Notice that the
communication between the Water Plant (Site A) and
Pump Site D has a marginal link, but it is the most direct
route between the Ethernet devices.
Figure 2: Small Mesh Network Diagram
This scenario poses the question, which path will the network select? The ESTeem Mesh Network takes out the guessing games by
allowing the user to select and prioritize all communication routes in the system. In our example we would want the primary link to
go through Tank B (Repeater) and use the direct link only if this primary link fails. The following sections will show how this
completed.
Configuration
The configuration of the repeater paths is completed during setup of the Access Point modes. All three Access Point modes support
repeating and Meshing features. The Mesh network configuration using the ESTeem Network Configuration (ENC) Utility is
shown in detail in Chapter 3 of this User’s Manual.
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CHAPTER 7
REPEATING FEATURES
You can also configure the Mesh networking directly through the web configuration setup (Chapter 5). Figure 3 shows an example
repeater peer table from the setup menus. For an ESTeem 195Ea to communicate with another ESTeem 195Ea, Yes must be
selected at the “Enable Repeater Capability.” Next, the Wireless LAN (WLAN) MAC address of each Model 195Ea that will have
direct communications must be added to the Repeater Peer List. Finally, enabling the link allows the corresponding 195Ea to be
included in the communication routing. Mobile clients do not require input in the repeater peer table. If multiple Mesh routes are
configured, you will also need to set the values for Priority and Path Costs (explained in Spanning Tree below). For multiple
examples of repeater configurations, please refer to Chapter 3 of this user’s manual.
Figure 3: Repeater Configuration Example
RAPID SPANNING TREE PROTOCOL (RSTP)
The ESTeem Model 195Ea uses Rapid Spanning Tree Protocol (RSTP - IEEE 802.1d) to determine the radio routing structure of
the wireless network. This RSTP functions the same as standard Spanning Tree Protocol (STP) listed below, but the network
recovery is three times faster. If the 195Ea is used in a network that has any older STP only modems, the entire network will be
STP.
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CHAPTER 7
REPEATING FEATURES
SPANNING TREE PROTOCOL
The ESTeem Model 195Ea uses standard Ethernet Rapid Spanning Tree Protocol (RSTP) to determine the radio routing structure
of the wireless network. The primary purpose of RSTP is to make sure that “network loops” are not created. A network loop is
having two communication paths to the same destination where the remote device would receive the same data multiple times. If
there were no way to control the data flow, this data would be constantly passed around this loop causing a “packet storm” that
would shut down the entire network. The Spanning Tree Protocol will block all these redundant links.
The STP operation begins by determining which Ethernet device on the network will be the Root Bridge. All Ethernet networks
have a Root Bridge that is selected by the lowest MAC address. All path costs are evaluated against this Root Bridge device to
determine routing and which paths will be blocked. On a wired Ethernet network, the location of the Root Bridge is not really
important, but in a wireless network selection of the Root Bridge is critical to the wireless network routing. Let’s use one of the
Example network diagrams from Chapter 5 to continue the discussion (Figure 4).
HUB or Switch
Stand-Alone Repeater Site
Example #2
S/N: E-14002
WLAN MAC= 00:04:3F:00:09:05
10/100BaseT
Primar
y Repe
Network
Router
(Required)
ater Pa
th
Access Point Router
with Repeater
Feature Enabled
Access Point Bridge
with Repeater
Feature Enabled
Path
Primary Repeater
ku
ac
Plant Network
Large Wired LAN
Example #1
S/N: E-14001
WLAN MAC=00:04:3F:00:09:01
at
er
at
ep
EtherStation
Mode
Mobile Vehicle
Single Ethernet Device
Example #4
S/N: 14004
Remote Building
Small Ethernet Wired LAN
Example #3
S/N: E-14003
WLAN MAC=00:04:3F:00:09:10
10/100BaseT
Mobile
PLC
Access Point Bridge
with Repeater
Feature Enabled
Figure 4: Programming Example #1 Diagram
Revised: 9 Sep 11
7-3
EST P/N AA107A
CHAPTER 7
REPEATING FEATURES
The following sections describe the process of the STP in the ESTeem Model 195Ea as how it would happen in the above example.
Learning Phase - Once properly configured, each Model 195Ea will begin to search out the other Model 195Ea units in radio range
that are programmed in the AP Repeater Peer table. All Model 195Ea’s will calculate their routes to every Model 195Ea in the
network based upon the lowest “path length” to the Root Bridge. Path length is the total number of wireless links (repeater peer
links) to transmit a packet through the wireless network to the Root Bridge. Note: The Root Bridge in a network should be the
Model 195Ea where the majority of the data flow is processed. In every wireless network of two or more radios, the Root Bridge
should be user defined. If not defined, the ESTeem 195Ea with the lowest MAC address will be designated as the Root Bridge.
In Figure 4, the Plant network (Example 1) is the most logical location for the Root Bridge based upon the amount of data flow.
Setting this site as the root bridge is discussed below in Root Bridge.
Blocking and Forwarding Phase – To ensure you do not have a network loop situation due to redundant paths in your wireless
network, the Model 195Ea will recognize and disable (block) one or more redundant links and provide back up links should the
primary link fail. This establishes a wireless mesh network with a series of forwarding links, based upon the shortest path length to
the Root Bridge.
For example, looking at Figure 4, the Remote Building has two routes to the Root Bridge (Plant Network – Example #1); directly to
the site and through the repeater. The direct link between the two sites is the shortest route (lowest Path Length) and will be
selected as the primary route unless overridden by manually changing the Path Length in the configuration.
Path Length
If more than one communication path to the Root Bridge is found, the 195Ea must determine which route to take based upon the
lowest Path Length. The default path length to all links in the 195Ea network is 1. If the Path Lengths are equal then the lowest
MAC address will determine the priority route. In the ESTeem Mesh Network we want to directly control all data flow so do not
want the routes to be automatically determined.
Looking again at our Example in Figure 4, if we made no changes to the default path length of 1 (note values in Figure 3) the lowest
path cost would be direct from the Remote Building to the Root Bridge (Plant Network).
Link Description
Direct from Remote Building
Remote Build to Root Bridge Through Repeater
Total Path Length
(Length 1 to repeater + Length 1 to Master = 2)
To configure the 195Ea to select the repeater as the primary radio path, set the path length value for the direct link greater than 2
(such as a value of 3) to make this the primary radio path. The lowest path length will identify the highest priority. The Model
195Ea will use this routing, but also switch to direct communication if the repeater were to disappear.
Root Bridge
In any Access Point Repeater network consisting of more than two sites, one Model 195Ea should be designated as the Root
Bridge. Only one Model 195Ea can be designated as the Root Bridge in a given network and should be located where the majority
of the Ethernet data flow is processed. This site may be the Master location in a SCADA network or could be configured at a
repeater site. Selection is important because all Model 195Ea’s NOT configured as the Root Bridge will choose routing based
upon the Path Length to the Root Bridge. If you have any question as to which site in your AP Repeater application should be the
Root Bridge, contact ESTeem Customer Support at 509-735-9092 or e-mail your application to support@esteem.com.
The Root Bridge will be selected in one of two ways: the Root Bridge can be manually set (recommended) during the configuration
of the Repeater Peer table (Figure 3) or the Root Bridge designation will default to the lowest MAC address of all the Model
195Ea’s in the network. The manual Root Bridge configuration is located in the “Advanced Settings” section.
Revised: 9 Sep 11
7-4
EST P/N AA107A
CHAPTER 7
REPEATING FEATURES
Redundant Backup
The ESTeem Model 195Ea configured in Access Point Repeater
mode will automatically function as a redundant backup if two
Model 195Ea’s are installed at the same location (Figure 7). If
two Model 195Ea’s are connected to the same switch, one of the
Model 195Ea’s will be Blocked when the Spanning Tree
Protocol is completed. The network will continue to use this
route until any problem with the original Model 195Ea is
detected and the second Model 195Ea will begin operation at
that site.
Redundant Master Configuration – The configuration in
Figure 7 will also provide a redundant backup for the Master
Site (Root Bridge). Configure both Model 195Ea’s as Root
Bridges (see above) giving the primary Root Bridge a value of 1
and the secondary Root Bridge a value of 2.
Figure 7: Redundant Backup Diagram
Revised: 9 Sep 11
7-5
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
ANTENNA AND CABLE CONFIGURATIONS
Warning: Only the tested cable lengths and antennas provided by EST meet the FCC and DOC maximum peak output power
requirements. Any other combination of antennas or coax cables is not authorized.
EST offers different types of antennas for both indoor and outdoor configurations. This device has been designed to operate with
the antennas listed below, and having a maximum gain of 22 dBi. Antennas not included in this list or having a gain greater than
22dBi are strictly prohibited for use with this device. The required antenna impedance is 50 ohms.
Part Number: AA20DMa

Omni-directional direct mount antenna, 4.5 dBi gain.

Indoor and outdoor applications.

There must be a minimum separation distance of 23
cm. from the antenna to the user. See Warnings.
Antenna
Port A
Part Number: AA20Ea

Omni-directional external pole mount antenna, 6 dBi
gain with 18 inch integral feedline and connector.

Outdoor applications.

There must be a minimum separation distance of 23
cm. from the antenna to the user. See Warnings.
Part Number: AA205Ea

Directional linear panel, pole mount antenna, 22 dBi
gain with 18 inch integral feedline, bandpass filter and
connector.

Point to point and point to multi-point outdoor
applications.

There must be a minimum separation distance of 50
cm. from the antenna to the user. See Warnings.
Warnings:
Only pre-made coax cables from the factory used in
conjunction with either the omni-directional and
directional antennas meet all FCC Section 15.247(b)
EIRP maximum power requirements.
To comply with the FCC exposure compliance
requirements, a separation distance of at least ~113 cm
must be maintained between the antenna and all persons.
This radio transmitter (ESTeem 195Ea - 2163A-195EA) has been approved by Industry Canada to operate with the antenna types
listed above with the maximum permissible gain and required antenna impedance for each antenna type indicated. Antenna types
not included in this list, having a gain greater than the maximum gain indicated for that type, are strictly prohibited for use with this
device.
(Le présent émetteur radio (ESTeem 195Ea – 2163A-195EA) a été approuvé par Industrie Canada pour fonctionner avec les types
d'antenne énumérés au-dessous et ayant un gain admissible maximal et l'impédance requise pour chaque type d'antenne. Les types
d'antenne non inclus dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement interdits pour
l'exploitation de l'émetteur.)
Revised: 27 Jan 12
8-1
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
ASSEMBLING THE AA195PM TWO HOLE OUTDOOR POLE MOUNTING KIT
The AA195PM mounting kit contains everything required for pole mounting and weatherproofing the ESTeem Model 195E for
outdoor installations. The 195E with AA195PM mounting kit can be directly mounted to a round pole from 1.25” to a diameter of
2.25” OD. Any mounting structure greater than 2” requires hose clamp strapping run through the Pole Mount Brackets. The
mounting kit requires the following assembly:
1.
2.
Figure 1: Packet Box Contents
If you purchased an AA195PM mounting kit with your Model 195E, the kit will be packed in the same packing box as the
ESTeem (Figure 1).
Remove and inventory the two (2) Pole Mounting Brackets, one (1) Two-Hole Face Plate Cover (with single port cover
installed), one (1) Heat Shield and (1) AA195PM Hardware bag from the packing box (Figure 1). Report any missing or
damaged items to ESTeem Customer Support (509-735-9092 Phone) as soon as possible for replacement.
(2) Square Bend U-Bolts with Hardware
(2) Pole Mount Clamps
(4) 10-24 Pan Screws
(1) Weather Proof
Boot for Antenna
Port B (if not used)
(2) Ethernet
Cable Boot
Revised: 27 Jan 12
8-2
(2) Direct Mount Antenna Boots for ESTeem
Approved Direct Mount Antenna Only
Figure 2: AA195PM Hardware Contents
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
3.
Inventory the AA195PM Hardware bag for all the components listed in Figure 2.
4.
Assemble the two Pole Mounting Brackets with the included U-bolts, hardware and Pole Mount Clamps. Reference Figure 3.
Figure 3: Pole Mount Assembly
5.
Place the four supplied 10-24 x 1” Phillips Pan Head screws through the mounting holes of the Heat Shield and attach to the to
the top of the ESTeem 195E (Figure 4).
Figure 4: Heat Shield Attachment
Revised: 27 Jan 12
8-3
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
6.
Attach the two Pole Mounting Brackets to the ESTeem Model 195E with the 10-24 x 1” Phillips Pan Head screws through the
Figure 5: Pole Mount Connection to Case
(Heat Shield Removed for Detail)
top of the heat shield. Reference Figure 5 (Heat Shield removed for detail).
7.
Assemble the outdoor rated CAT-5e Ethernet cable (Not Provided) with the supplied Ethernet Cable Boot (Figure 6).
Ethernet Cable Boot
Figure 6: Ethernet Cable Assembly
8.
Feed the CAT-5e Ethernet connector(s) through the Face Plate Cover and secure the Ethernet Cable Boot to the cover.
Reference Figure 7. NOTE: The Ethernet cable boot must be installed before the RJ-45 end is installed. If using the ESTeem
AA09.1 outdoor Ethernet cable, verify that the Ethernet cable boot end is routed toward the ESTeem 195E.
Revised: 27 Jan 12
8-4
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
Second Port Cover
Remove for 2nd Cable
Face Plate Cover
Ethernet Cable Boots
9.
Figure 7: Ethernet Cable Routing
Route the CAT-5e Ethernet cable through the molded strain-relief fins in the Face Plate Cover (Figure 8) to secure the cable
and provide strain-relief for the connector. If a second Ethernet cable is installed, remove the second port cover and route
cable.
Figure 8: Face Plate Cover Strain Relief
10. Plug the CAT-5e Ethernet cable to the Model 195E’s Ethernet port and secure the Face Plate Cover with the attached thumb
screw. Verify that the weatherproof seal on the Face Plate Cover is sealed against the outer rim of the Model 195E. Reference
Figure 9.
Figure 9: Face Plate Cover Installed on ESTeem
11. Attach the antenna connector boots as show in Figure 10 for either dual attached antennas or external antennas. You are now
ready to mount the ESTeem Model 195E
Revised: 27 Jan 12
8-5
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
EST Approved Direct Mount
Antenna Only
EST Approved External
Antenna With Factory
Installed Boot
Direct Mount
Antenna Boots
Port A
Port B
Weather Proof Boot
NOTE: Remove Plastic
Connector Cover
Before Installation
Face Towards The
South
(North America)
Figure 10: Completed AA195PM Mounts
Caution: Outdoor mounting of the 195E requires the use of weatherproof boots. Improper installation
could result in radio failure.
Caution: Always mount the 195E vertically with the antenna ports on top.
Revised: 27 Jan 12
8-6
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
195E POLE MOUNT GROUNDING PROCEEDURES
Mounting the 195E series radio modem outdoors requires proper grounding procedures to prevent damage to both the radio
hardware and the connected Ethernet and Serial peripherals. The case on the 195E series wireless modem is electrically
conductive, but the AA195 Pole Mount kit provides isolation from the connected structure. To bring the 195E case to a ground
potential with Earth ground and eliminate any static buildup on the case itself, the shield on the Ethernet cable is used to provide the
ground connection.
Outdoor Ethernet Cable
A critical component of this grounding protection system is the ESTeem AA09.1 outdoor, shielded CAT-5E Ethernet cable. This
cable provides three, necessary elements; Ethernet data, DC Power over Ethernet (PoE) applications, and a ground from the 195E
case to the AA166 surge protector. The Ethernet cable is outdoor rated and protected from UV breakdown.
Installation
The following diagram outlines all the critical components and connections in the 195E series system. The Earth ground
connection to the surge protector must be installed to comply with local Electrical code requirements.
Metal RJ-45 Hood
(Amp 5-569530-3)
ESTeem Model 195E
Series Wireless Modem
Drain Wire Soldered
To Metal RJ-45 Hood
ESTeem AA09.1
Outdoor, Shielded
CAT-5E Cable
(300 ft. maximum)
Drain Wire With
Ring Terminal Connected
to Ground Lug
Metal RJ-45 Hood
(Amp 5-569530-3)
AA166 Ethernet
Surge Protection
Revised: 27 Jan 12
8-7
Power Over Ethernet
Supply
(AA175)
Ethernet Patch Cable
(AA09.2)
Approved Earth
Ground Connection
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
Caution: Always mount the 195Ea vertically with the antenna ports on top.
Revised: 27 Jan 12
8-8
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
Caution: Always mount the 195Ea vertically with the antenna ports on top.
Revised: 27 Jan 12
8-9
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
FRESNEL ZONE
The Fresnel zone shows the ellipsoid spread of the radio waves around the visual line-of-sight after they leave the antenna (see
figure above). This area must be clear of obstructions or the signal strength will be reduced due to signal blockage. Typically,
20% Fresnel Zone blockage introduces little signal loss to the link. Beyond 40% blockage, signal loss will become significant.
This calculation is based on a flat earth. It does not take into account the curvature of the earth. It is recommended for RF path
links greater than 7 miles to have a microwave path analysis done that takes the curvature of the earth and the topography of the
terrain into account.
Fresnel Zone Radius = 72.1 SQRT [(d1d2) / (F(d1 + d2)]
Units
Fresnel Zone Radius in feet.
d1 and d2 in statue miles
F in GHz
Revised: 27 Jan 12
8-10
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
Caution: Always mount the 195Es vertically with the antenna ports on top.
Revised: 17 Jan 12
8-11
EST P/N AA107A
CHAPTER 8
ANTENNA SETUPS
FRESNEL ZONE
The Fresnel zone shows the ellipsoid spread of the radio waves around the visual line-of-sight after they leave the antenna (see
figure above). This area must be clear of obstructions or the signal strength will be reduced due to signal blockage. Typically,
20% Fresnel Zone blockage introduces little signal loss to the link. Beyond 40% blockage, signal loss will become significant.
This calculation is based on a flat earth. It does not take into account the curvature of the earth. It is recommended for RF path
links greater than 7 miles to have a microwave path analysis done that takes the curvature of the earth and the topography of the
terrain into account.
Fresnel Zone Radius = 72.1 SQRT [(d1d2) / (F(d1 + d2)]
Units
Fresnel Zone Radius in feet.
d1 and d2 in statue miles
F in GHz
Revised: 17 Jan 12
8-12
EST P/N AA107A
APPENDIX A
FCC INFORMATION
INFORMATION TO USERS
Other Information
The ESTeem Model 195Ea complies with Part 15 of the
FCC Rules. Operation is subject to the following two
conditions: (1) This device may not cause harmful
interference, and (2) this device must accept any
interference received, including interference that may
cause undesired operation.
Model 195Ea
OFDM Spread Spectrum Device
FCC Type Acceptance No: Pending
Canadian Certification Number: Pending
Note to User:
Changes or modifications to this equipment not expressly
approved by Electronic Systems Technology for
compliance could void the user's authority to operate the
equipment.
The equipment has been tested and found to comply with the limits for a Class A digital 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 frequency 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.
Revised: 9 Sep 11
APX A-1
EST P/N AA107A
APPENDIX A
FCC INFORMATION
FEDERAL COMMUNICATIONS COMMISSION FIELD OFFICES
ALASKA
1011 E. Tudor Rd.
Rm 240 Box 2955
Anchorage, AK 99510
CALIFORNIA
Interstate Office Park
4542 Ruffner St., Room 370
San Diego, CA 92111-2216
Los Angeles Office (LA)
Ceritos Corporate Tower
18000 Studebaker Rd., Room 660
Cerritos, CA 90701-3684
San Francisco Office (SF)
5653 Stoneridge Drive, Suite 105
Pleasanton, CA 94588-8543
COLORADO
Denver Office (DV)
215 S. Wadsworth Blvd., Suite 303
Lakewood, CO 80226-1544
FLORIDA
919 Federal Bldg
51 SE First Ave.
Miami, FL 33130
Tampa Office (TP)
2203 N. Lois Ave., Room 1215
Tampa, FL 33607-2356
ILLINOIS
Chicago Office (CG)
Park Ridge Office Ctr., Room 306
1550 Northwest Highway
Park Ridge, IL 60068-1460
LOUISIANA
New Orleans Office (OR)
2424 Edenborn Ave. Suite 460
Metarie, LA 70001
OREGON
1782 Federal Building
1220 SW 3rd Avenue
Portland, OR 97204
MARYLAND
1017 Geo. Fallon
Building 31
Hopkins Plaza
Baltimore, MD
PENNSYLVANIA
Philadelphia Office (PA)
One Oxford Valley Office Bld.
Room 404
2300 E. Lincoln Hwy
Langhorne, PA 19047-1859
MASSACHUSETTS
Boston Office (BS)
1 Batterymarch Park
Quincy, MA 02169-7495
PUERTO RICO
747 Federal Building
Carlo Chardon Ave.
Hato Rey, PR 00918
MICHIGAN
Detroit Office (DT)
24897 Hathaway Street
Farmington Hills, MI 48335-1552
TEXAS
Dallas Office (DL)
9330 LBJ Freeway, Room 1170
Dallas, TX 75243-3429
MINNESOTA
691 Federal Building
316 N Robert St.
St. Paul, MN
5636 Federal Building
515 Rusk Avenue
Houston, TX 77002
GEORGIA
Atlanta Office (AT)
3575 Koger Blvd., Suite 320
Duluth, GA 30096-4958
MISSOURI
Kansas City Office (KC)
520 NE Colbern Road
Second Floor
Lee’s Summit, MO 64086
HAWAII
7304 Prince Kuhi
Federal Building
Honolulu, HI
NEW YORK
1307 Federal Building
111 W. Huron
Buffalo, NY 14202
Revised: 9 Sep 11
NEW YORK
New York Office (NY)
201 Varick Street, Suite 1151
New York, NY 10014-4870
APX A-2
WASHINGTON DC
Columbia Office (CF)
9300 East Hampton Drive
Capitol Heights, MD 20743
WASHINGTON
Seattle Office (ST)
11410 NE 122nd Way
Room 312
Kirkland, WA 98034-6927
EST P/N AA107A
APPENDIX B
SPECIFICATIONS
Model 195Ea Specifications
LED Indicators
Power On/Off
Carrier Detect On/Off
Link Status On/Off
Receiver On/Off
Transmitter On/Off
I/O Connectors
Ethernet 10/100Base T
RS-232C Programming/Data Port
RJ-45
RJ-45
Dual Antenna input/Outputs
TNC Reverse Female
Remote Input Power
Power Over Ethernet Cable
Direct Input Power
Optional, Header Screw Connector
Transmiter
5.745 to 5.825 GHz
Software Selectable in 17 Channels
Frequency of Operation
RF Data Rates
6 to 54 Mbps (8 steps)
Tx Peak Output Power
250mW to 1 Watt (Pk) (4-levels)
RF Output Impedance
50 ohms
Receiver
Rx Sensitivity
-72 dBm @54 Mbps to –92 dBm @ 6 Mbps
Frame Error Rate <10%
Power
IEEE 802.3at Power Supply,
48 VDC @ 30 Watts
10 to 28 VDC
250 ma @ 12 VDC
1.25 A @ 12 VDC
Power over Ethernet
Power Connector on Unit
Receive
Transmit
Case
Dimensions
1.9 in. H x 6.7 in. W x 6.2 in. L
Weight
Outdoor Pole Mounting Kit
Other
1.25 lbs.
Optional, EST P/N 195PM
Warranty
1 Year
Temperature Range
Humidity
FCC Type Acceptance
Industry Canada Type Acceptance
-30 to +60 C
95% Non-condensing
Pending
Pending
Specifications Subject to Change Without Notice
Revised: 17 Jan 12
APX B-1
EST P/N AA107A
APPENDIX B
SPECIFICATIONS
Model 195Ea Case Specifications
Model AA20DMEg
Revised: 17 Jan 12
APX B-2
EST P/N AA107A
APPENDIX B
SPECIFICATIONS
Antenna Specifications
Model: AA20DMEa
Applications: Model 195Ea direct case mount
Antenna Type: Omni-Directional, Sleeve dipole
Frequency: 5.735 to 5.835 GHz
Polarization: Vertical
Impedance: 50 ohms
Gain: 4.5 dBi (2.5 dBd)
VSWR: < 1.5:1
Power: 10 W
Front To Back Ratio: n/a
Horizontal Beamwidth: n/a
Vertical Beamwidth: n/a
Antenna Material: Polyurethane Plastic Radome
Recommended Mounting Hardware: n/a
Antenna Connector: TNC-R Male
Flexibility: +/- 20 
Antenna Envelope: 7.36 in. length by .51 in. width
Temperature: -20 to +65 C
Weight: 28.4 grams
Warning
Omni-directional antenna
should not be located within
23 cm of personnel
AA20DMEa
Model No: AA20Ea
Antenna Type: Omni Directional, DC Grounded
Applications: Fixed base
Frequency: 5.725-5.825 GHz
Polarization: Vertical
Impedance: 50 ohms
Gain: 6 dBi (8 dBd)
VSWR: 1.5:1 Typical
Vertical Beamwidth: 6 degrees @ ½ power
Recommended Mounting Hardware: Pole Mounting Bracket, Supplied
Antenna Connector: TNC male reverse polarity with
18 in. pigtail and weatherproof boot
Maximum Power Input: 25 Watts
Wind Survival: 125 mph
Antenna Envelope: 20.2 in. L x 1.25 in.
Equivalent Flat Plate Area: .06 sq. ft
Lateral Thrust at Rated Wind: 5.2 lbs feet
Radome: White UV resistant fiberglass
Weight: 0.5 lbs.
AA20Ea
Revised: 17 Jan 12
APX B-3
EST P/N AA107A
APPENDIX B
SPECIFICATIONS
Antenna Specifications
Model No: AA205Ea
Applications: Fixed base mounting
Antenna Type: Directional, Linear Polarized Panel, DC grounded,
Integral Bandpass Filter
Frequency: 5.725-5.875 GHz
Polarization: Vertical or Horizontal
Impedance: 50 ohms
Gain: 22 dBi (20 dBd) nominal
VSWR: <1.5:1 nominal
Front to Back Ratio: ≥ 25 dB
Horizontal Beamwidth: 9 degrees @ ½ power
Vertical Beamwidth: 9 degrees @ ½ power
Antenna Material: White UV Resistant Polypropylene
Recommended Mounting Hardware: Adjustable Mounting Bracket
provided for wall mounting or masts between 1 in and 2.75 in. O.D.
Antenna Connector: TNC male reverse polarity with 18 in. pig-tail
and weatherproof boot.
Maximum Power Input: 20 Watts
Antenna Envelope: 14.5 in. length by 14.5 in. height by 1.75 in.
depth
Operating Temperature: -40 to +85 F.
Weight: 3.5 lbs.
Model AA205Ea
Caution
To comply with the FCC
exposure compliance
requirements, a separation
distance of at least 50 cm
must be maintained
between the antenna and
all persons.
Revised: 17 Jan 12
APX B-4
EST P/N AA107A
APPENDIX C
INTERFACE PORTS
ETHERNET INTERFACE
The ESTeem Model 195Ea’s Ethernet Port is a Full and Half-Duplex Auto-negotiation interface supporting both 10 Mbps and 100
Mbps (10/100BaseT). The Ethernet port is compliant with IEEE 802.3at High-Power Over Ethernet (PoE) to provide data and
power over the same CAT-5E grade Ethernet cable. The port is compatible with TIA/EIA-568B cable configuration (Figure 1).
Figure 1: Ethernet Pin Layout
A second Ethernet port will be included in the 195Ea and can be used in Bridge Mode (HUB) or as a router.
Revised: 9 Sep 11
APX C-1
EST P/N AA107A
APPENDIX C
INTERFACE PORTS
CONFIGURING DHCP SERVER
The ESTeem 195Ea Ethernet port supports both client and server Dynamic Host Configuration Protocol (DHCP). Figure 2 shows
the DHCP host configuration screen that will be shown if DHCP server is selected in the setup screens. Enter the values that match
the DHCP configuration for your network.
Figure 2: DHCP Server Configuration
Revised: 9 Sep 11
APX C-2
EST P/N AA107A
APPENDIX C
INTERFACE PORTS
RS-232C PROGRAMMING PORT
CONFIGURATION
RS-232
Programming Port
The ESTeem Model 195Ea has a proprietary RS-232C
interface in a RJ-45 connector on the front panel. To
interface the 195Ea to the serial port on the computer,
you need ESTeem cable AA0621 that combines a
standard Ethernet patch cable to a 9-pin Female adapter.
The serial port on the ESTeem Model 195Ea can be used
to access the configuration menu in the ESTeem for
system and network configuration. The ESTeem
communications port operates at 38,400 bps, No Parity, 8
Data Bits and 1 Stop Bit (38,400,N,8,1). Configure your
terminal program to match these settings.
Model 195Ea Serial Port Interface
RS-232 PROGRAMMING PORT PIN-OUT TABLE
ESTeem Model AA0621
RS-232C Port Pin-Out Table
RJ-45
Pin No.
Function
Signal Ground (GND)
Receive Data (RxD)
Transmit Data (TxD)
DB-9
Pin No.
Ethernet Pin-out
RS-232C DATA PORT CONFIGURATION
RS-232
Data Port
The ESTeem Model 195Ea has an RS-232C interface in a
RJ-45 connector on the front panel that can be installed as
an option . To interface the 195Ea to the serial port on the
computer, you need serial cable with the following pin-out:
ESTeem Model AA0621
RS-232C Port Pin-Out Table
RJ-45
Pin No.
Function
Data Set Ready (DSR)
Data Carrier Detect (DCD)
Data Terminal Ready (DTR)
Signal Ground (GND)
Receive Data (RxD)
Transmit Data (TxD)
Clear to Sent (CTS)
Request to Sent (RTS)
Revised: 9 Sep 11
DB-9
Pin No.
Model 195Ea Serial Data Port Interface
APX C-3
EST P/N AA107A
APPENDIX D
RADIO CONFIGURATION
195Ea FREQUENCY OF OPERATION
In a wireless Ethernet network all of the ESTeem Model 195Ea’s must be set
to the same radio frequency of operation or channel. Listed on the right is a
table showing the channel and corresponding frequency of operation. The
frequency of operation is selectable when configuring the mode of operation of
the 195Ea (reference Chapter 3). See Figure 1.
Channel Number
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
Frequency
5745 MHz
5750 MHz
5755 MHz
5760 MHz
5765 MHz
5770 MHz
5775 MHz
5780 MHz
5785 MHz
5790 MHz
5795 MHz
5800 MHz
5805 MHz
5810 MHz
5815 MHz
5820 MHz
5825 MHz
Figure 1: RF Channel Selection
RF COMMUNICATIONS DATA RATE
The RF data rate of the Model 195Ea can be programmed for operation at 6, 9, 11, 12, 18, 24, 36, 48, or 54 Mbps. The RF data
rate can be set for a fixed rate or a specific range that is dynamically scaled by the Model 195Ea from monitoring the received
signal quality. The Model 195Ea can communicate with multiple 195Ea wireless modems at different data rates for each device.
Dynamic scaling means that the Model 195Ea will operate at the highest RF data rate that is programmed into unit. If the received
data quality drops below the required minimums for reliable communications the Model 195Ea will reduce the data rate to the next
lowest step to increase signal quality. Conversely if the signal quality increases above the minimums the Model 195Ea will increase
the RF data rate the next highest level.
SETTING RF POWER LEVEL
The ESTeem Model 195Ea peak power is adjustable in output power from 250mW to 1 Watt. The output power is adjusted on the
Advanced Menu>Wireless LAN Settings>Wlan0 Device screen (Figure 3) of the Web Configuration Manager. Select the value
and press the Save Settings button.
Revised: 6 Sep 11
APX D-1
EST P/N AA107A
APPENDIX D
RADIO CONFIGURATION
Max (Maximum)
Hi (High)
Lo (Low)
Min (Minimum)
1 Watt
700 mw
500 mw
250 mw
Figure 3: Advanced Global Variables
Figure 4: Power Level Settings
Revised: 6 Sep 11
APX D-2
EST P/N AA107A
APPENDIX D
RADIO CONFIGURATION
AVERAGE RF OUTPUT POWER
The average measurable output power on the ESTeem Model 195Ea will vary from 24dBm to 30dBm depending upon modulation
type and RF data rate. The average power is used when entering the output power level in the ESTeem RF Design program. The
following table provides that level and modulation type at each data rate:
RF Data Rate (Mbps)
12
18
24
36
48
54
Revised: 6 Sep 11
Average Power
30dBm
30dBm
28dBm
28dBm
27dBm
27dBm
24dBm
24dBm
APX D-3
Modulation Type
OFDM
OFDM
OFDM
OFDM
OFDM
OFDM
OFDM
OFDM
EST P/N AA107A
APPENDIX E
SECURITY
OVERVIEW
The security for the ESTeem Model 195Ea, like all network security, must be multi-layered. One level of security is never enough
to make sure that data does not end up in the wrong hands. Please review the following security levels and decide what is the most
appropriate for your network.
AES-CCMP (802.11i and WPA-2)
AES-CCMP (Advanced Encryption Standard-Counter Mode CBC-MAC Protocol) is the encryption algorithm used in the IEEE
802.11i and WPA-2 security protocols. This national encryption standard uses a 128 bit-AES block cipher and CCMP technique to
ensure the highest level of security and integrity available on a wireless network. AES-CCMP incorporates two sophisticated
cryptographic techniques (counter mode and CBC-MAC) and adapts them to Ethernet frames to provide a robust security protocol
between the mobile client and the access point. AES itself is a very strong cipher, but counter mode makes it difficult for an
eavesdropper to spot patterns, and the CBC-MAC message integrity method ensures that messages have not been tampered with.
The ESTeem 195Ea is compatible as either an Access Point or client in either WPA2 or IEEE 802.11i security systems.
Wi-Fi Protected Access 2 with Preshared Key (WPA2 PSK)
WPA2 PSK uses a common passphrase (preshared key) between the Access Point (AP) and the client to begin a secure
communication session. This passphrase must be entered exactly the same in both the Access Point and the client. This passphrase
is used to authenticate communication session between the AP and client to begin the secure wireless networking session.
Wi-Fi Protected Access 2 with Enterprise Server (WPA Enterprise)
Like WPA2 PSK, WPA2 Enterprise verifies the authenticity of the Access Point and client, but uses an 802.1x backend
authentication server handling the authentication decision. The most commonly type of authentication server is a RADIUS server.
The ESTeem Model 195Ea can be configured to operate with an established RADIUS server on the network.
WPA
Wi-Fi Protected Access with Preshared Key (WPA PSK)
WPA, which uses 802.1x, was introduced in 2003 to improve on the authentication and encryption features of WEP. All
authentication is handled within this access point device. WPA has two significant advantages over WEP:
1. An encryption key differing in every packet. The TKIP (Temporal Key Integrity Protocol) mechanism shares a starting key
between devices. Each device then changes their encryption key for every packet. It is extremely difficult for hackers to read
messages even if they have intercepted the data.
2. Certificate Authentication (CA) can be used, blocking a hacker posing as a valid user.
Wi-Fi Protected Access with Enterprise Server (WPA Enterprise)
Like WPA PSK, WPA Enterprise verifies the authenticity of the Access Point and client, but uses an 802.1x backend authentication
server handling the authentication decision. The most commonly type of authentication server is a RADIUS server. The ESTeem
Model 195Ea can be configured to operate with an established RADIUS server on the network.
WPA is server/client relationship from a software driver on a computer’s wireless LAN (WLAN) card to an Access Point. The
scope of WPA is limited in use to this configuration only. The ESTeem Model 195Ea can support WPA Enterprise and PSK as an
Access Point, but the level of security on the Bridging layer is configured separately.
Revised: 9 Sep 11
APX E-1
EST P/N AA107A
APPENDIX E
SECURITY
128-BIT WEP
The 128 WEP uses a particular algorithm called RC4 encryption to encode and decode traffic that is based on a 104-bit encryption
key and a 24-bit Initialization Vector (IV). RC4 starts with a relatively short encryption key (104 bits) that is expanded into a
nearly infinite stream of keys to accompany the stream of packets.
The basic concept of RC4 is good, but the way it’s implemented in WEP leaves it open to compromise. The researchers that test
the integrity of the system usually focus on one piece of the implementation, the Initialization Vector (IV).
The IV (24 bits) is the algorithm component that’s supposed to keep expanded keys from repeating. From the researcher’s point of
view, a high-volume access point is mathematically guaranteed to reuse the same key stream at least once a day. When this
happens, it’s called an IV collision this becomes a soft spot to enter the system.
The researchers aren’t saying that it’s easy to break into the system, or that it’s being done on a regular basis, only that it is possible
and that administrators should consider ways to reduce the possibility
ACCESS CONTROL LIST (ACL)
The ACL is one of the simplest yet most secure methods of network security. The ACL is a configurable MAC filter in the Model
192E that can be set to allow specific MAC address on the wireless network by individual address or address ranges. The same
filter can also be set to reject individual MAC addresses or address ranges.
The MAC address is a unique, 6 hexadecimal field address assigned at the manufacturer that can not be changed. The MAC
address is traceable through the IEEE governing body to the manufacturer and is the “fingerprint” for all Ethernet devices.
Using a combination of both the WPA or 128-Bit WEP encryption and the ACL filter provide the ESTeem an extremely secure
wireless networking layer.
DISABLING BROADCAST PROBES AND HIDING SSID
A simple but very effective way of securing a network is to make the network difficult to find. By disabling broadcast probes and
hiding the Service Set Identification (SSID), wireless and network “sniffers” will not be able to find your ESTeem Model 195Ea
network. To gain access to the wireless network, you would be required to have the SSID and all security loaded in the WLAN
card software prior to entering the network.
PROPRIETARY BRIDGE COMMUNICATION
Although the ESTeem Model 195Ea is compatible with the open communication standards IEEE 802.11g and 802.11b, the
repeater communication between the units is a proprietary communication link. No other manufacturer of wireless hardware can
access the ESTeem repeater network when bridging between Ethernet networks. This proprietary communication layer, in
combination with the other security settings, allows you as the user to reject wireless clients into the network if so desired. When
used in conjunction with the Access Control List the 802.11g and 802.11b client access can be removed.
The security level of the bridge communication link is configurable for 64-Bit WEP, 128-Bit WEP or TKIP and is completely
independent of the client access level or any other communication link level. For example, an ESTeem Model 195Ea can be
configured for WPA Enterprise for client level access, communicate to another ESTeem Model 195Ea using a TKIP bridge link
and also communicate 128-Bit WEP to our older ESTeem Model 192E radio modems all running simultaneously.
Revised: 9 Sep 11
APX E-2
EST P/N AA107A
APPENDIX E
SECURITY
MASQUERADE MODES
When the ESTeem Model 195Ea is configured in either the Access Point Masquerade or the Client Masquerade modes, the
wireless modem will function as a network firewall. If access to the wired network is the greatest concern, place the ESTeem in the
Masquerade mode and the wireless network will be completely isolated from the wired Ethernet network.
INCREASING NETWORK SECURITY
The following are a few suggestions to help improve the overall security of your wireless network:
1.
Enable the security. If you research all of the articles regarding hackers, they have gotten into the user’s network due to the
security not being enabled.
2.
Set the ACL filter to include only those MAC address of the wireless Ethernet device being used on the network.
3.
Make sure the keys are not reused in your company, since reuse increases the statistical likelihood that someone can figure the
key out and change the default password on your access point or wireless router
4.
As a network administrator, you should periodically survey your company using a tool like NetStumbler to see if any "rogue"
access points pop up within your company without authorization. All of your hard work to "harden" your wireless network
could be wasted if a rogue AP was plugged into your network behind the firewall.
5.
Many access points allow you to control access based on the MAC address of the NIC attempting to associate with it. If the
MAC address of your NIC isn't in the table of the access point, you won't associate with it. And while it's true that there are
ways of spoofing a MAC address that's been sniffed out of the air, it takes an additional level of sophistication to spoof a MAC
address. The downside of deploying MAC address tables is that if you have a lot of access points, maintaining the tables in
each access point could be time consuming. Some higher-end, enterprise-level access points have mechanisms for updating
these tables across multiple access points of the same brand.
6.
Consider using an additional level of authentication, such as Remote Access Dial-in User Service (RADIUS), before you
permit an association with your access points through WPA and WPA2 Enterprise.
7.
If you're deploying a wireless router, think about assigning static IP addresses for your wireless NICs and turn off Dynamic
Host Configuration Protocol (DHCP). If you're using a wireless router and have decided to turn off DHCP, also consider
changing the IP subnet. Many wireless routers default to the 192.168.1.0 network and use 192.168.1.1 as the default router.
8.
Only purchase Access Points that have flashable firmware. There are a number of security enhancements that are being
developed, and you want to be sure that you can upgrade your access point.
9.
A simple security technique used by the military is to have the administrator periodically change the key for the system i.e.
weekly, monthly, etc.
Revised: 9 Sep 11
APX E-3
EST P/N AA107A
APPENDIX F
TROUBLESHOOTING
TESTING COMMUNICATION LINK
After you have configured at least two of the Model 195Ea wireless Ethernet modems for operation, you can verify communication
with each the following steps:
Status LED
Solid Red on Link
Status Light
The quickest source of link status is to view the Status Light
on the face of the 195Ea (Figure 1). If the Status light is
solid, the Model 195Ea has a connection to another Model
195Ea listed in the Peer Table.
Status Screen/Peer Table
To view detailed information on the status of the
Figure 1: Connection Status Light
communication link (such as connection speed, signal
strength and last update time) you can open the Status Screen from the Web Interface. After press the Status tab at the top of the
screen the Status: Summary will be displayed showing the status of all ports and memory in the 195Ea. Under the Wireless Status
heading click on the View Peer Table (Figure 2). The Peer Table will list all other wireless activity seen by the 195Ea and how it is
classified.
Opposite Modem’s Wireless MAC
Receive Signal Strength (dBm)
Last Packet Received
Peer Modem ID
Other Access Points
Figure 2: Repeater Peer Table
Note: The data rate displayed is not necessarily indicative of the RF data rate between the ESTeems. The rate show in the
Repeater Peer table will be the last RF packet, which could consist of either data, repeater beacon or network probes.
Revised: 6 Sep 11
APX F-1
EST P/N AA107A
APPENDIX F
TROUBLESHOOTING
Repeater Peers - The Peer Table will display all connected 195Ea’s configured to repeat to this ESTeem by their Wireless (WLAN)
MAC address.
Received Signal Strength – This is the first of the two numbers listed in the block. This signal strength value is listed in dBm.
Last RX – This is the time of the last received data packet. When monitoring the status menu, it is important to note the time the
last transmission was updated so you are not looking at “stale” data.
Current Data Rate – This is the current speed the last data packet received by the Model 195Ea. This may not be the data rate
between the radio modems. Note that the speed is listed in kbps, so that 11000 kbps is equal to 11 Mbps.
Note: The ESTeem Model 195Ea uses spread spectrum technology that analyzes each data packet for signal strength and data
quality (strength vs. noise). The higher your signal, the mare background noise you can sustain without causing degradation in
the data transfer. This is also true for lower signal strengths with a very low background noise. These values are provided for
guidance and if you have any questions about the values in your application, please contact ESTeem Customer Support at 509735-9092 or e-mail your application to support@esteem.com.
Modem ID – This is Modem ID for the opposite repeater peer.
Figure 3: Peer Summary Table
Viewing RF Data Rates
The value shown on the Peer Status Screen for data rate may not be the actual rate of the RF link. To view the link information,
click on the Opposite Modems WLAN MAC address in the Repeater Peer list (Figure 2) and further link status information will be
displayed (Figure 3).
Once loaded, click on View Peer Rate Control Information. (Figure 4)
Revised: 6 Sep 11
APX F-2
EST P/N AA107A
APPENDIX F
TROUBLESHOOTING
Figure 4: Rate Control Information
The value of the Current TX rate is the RF data rate between the two ESTeem Model 195Ea.
SIGNAL STRENGTH VS DATA RATE
The following chart will show the average signal strength required to maintain a data rate. Please note that the data rates listed here
can be greatly effected by overall activity on the radio channel and the total background noise. This values should be used as a
guide, but testing after installation is required.
Receive Signal Strength
-89 dBm
-86 dBm
-85 dBm
-88 dBm
-87 dBm
-82 dBm
-84 dBm
-82 dBm
-79 dBm
-75 dBm
-70 dBm
-68 dBm
RF Data Rate
1 Mbps
2 Mbps
5.5 Mbps
6 Mbps
9 Mbps
11 Mbps
12 Mbps
18 Mbps
24 Mbps
36 Mbps
48 Mbps
54 Mbps
Note: The signal strength required for the above data rates are effected by other RF transmitters in the area. A higher signal
strength will be required in applications with high background noise.
Revised: 6 Sep 11
APX F-3
EST P/N AA107A
APPENDIX F
TROUBLESHOOTING
LONG RANGE POINT TO POINT APPLICATIONS
The factory configuration on the 195Ea is optimized for distances up to 10 miles. If your application has an RF link with a range
greater than 10 miles, you will need to set the maximum range value on both ESTeem 195Ea’s on this communication link. To
access the Maximum Distance value select Advanced from the top Menu then Wireless LAN Settings>wlan0 device and press
the Next button (Figure 5).
Figure 5: Advanced Features Screen
Scroll down the menu list until you find the Maximum Distance variable (Figure 6). Enter the maximum distance of the connection
in miles. At the bottom of the screen press Return to Advanced button and then Commit and Reboot button (Figure 5) to save
the information.
Figure 6: Maximum Distance Value Entry
Revised: 6 Sep 11
APX F-4
EST P/N AA107A
APPENDIX F
TROUBLESHOOTING
TROUBLESHOOTING TIPS
General (Applicable to All Modes of Operation)
Where do I find the latest firmware version number? – We have the latest version number of the Model 195Ea firmware listed on
the ESTeem Web site (www.esteem.com) under the Model 195Ea product page.
How and when do I update the Model 195Ea firmware? - You should only update the Model 195Ea firmware if you are having a
specific problem and it is recommended that you do so by ESTeem Customer Support personnel. All the update instructions and
files are located on the ESTeem FTP site at the following address:
ftp://www.esteem.com/195Ea
Do all firmware versions have to be the same to communicate between the Model 195Ea? – It is not necessary for all the firmware
versions to be the same revision to communication, but the later version may have added features that the other versions will not
recognize.
What characters are valid for WEP Key entry? - Only the Hexadecimal characters 0-9 and A-F are valid for key entry.
What ESTeem Utility version is required to program the Model 195Ea? – The ESTeem Utility program is not required to program
the Model 195Ea. The 195Ea can be programmed using any Terminal Emulation program (such as Windows HyperTerminal) and
any web browser program.
What is the speed and duplex configuration on the Model 195Ea – The Model 195Ea is an auto-negotiation full/half-duplex 10/100
Base-T interface. Ether a cross-over or patch cable is supported.
Access Point Mode
Wireless LAN cards are not connecting – Verify that the wireless LAN cards are set to Infrastructure Mode, have a matching SSID
(or ESSIS) set the same as the Model 195Ea and that all encryption codes are the same.
My Wireless LAN card shows a solid connection, but I can not pass any data – Verify the encryption and the ACL setting on the
Model 195Ea match the wireless LAN card.
Access Point Repeater Mode
How long does it take to re-establish the Wireless Ethernet Network? - If a communication link is lost and the Wireless Network
needs to re-establish the repeater routes, the time can take up to 10 seconds.
Should the AP Repeater Mode be used on mobile equipment? - The AP Repeater mode should be used on equipment that will not
change the Repeater Route as it moves. For example, if a mobile device such as a crane can communicate directly to another
ESTeem and will not loose the link in its travel, the AP Repeater Mode could be used. If the device requires two ESTeem Model
195Ea’s (Base and Repeater) to maintain communication across its complete travel, the Station Modes should be used on the
mobile device. The problem will be in the time that the mobile ESTeem will take to transfer between the two sites. In Access Point
Repeater mode the transfer can take up to 30 seconds, while the EtherStation mode will transfer without a packet loss.
Does WEP have to be used? – The WEP does not have to be enabled for the modems to communicate, but all modems must be
configured the same way.
Correct configuration, but cannot establish communications. – In addition to the network configuration, all 195Ea modems
configured in the AP mode must share the same SSID and be on the same frequency channel. The most likely cause of the error is
the WLAN MAC address is not configured in both 195Ea’s repeater tables. If only one side is configured, everything will appear
to be correct but no communication will function.
Revised: 6 Sep 11
APX F-5
EST P/N AA107A
APPENDIX F
TROUBLESHOOTING
EtherStation
How do I access the Model 195Ea web page in EtherStation Mode? The Model 195Ea does not have an active web browser when
configured in EtherStation mode. You must access the ESTeem with the ESTeem Discovery Program or through the RS-232 port
after configuration in this mode. To monitor the link status, you can use the EtherStation Status program.
What IP address do I configure the ESTeem in EtherStation mode? – The Model 195Ea will not have an IP address in EtherStation
mode.
I can not link my device into the wireless network – Verify that the MAC address of the device is exactly the same as configured in
the Model 195Ea. The MAC address must have colons between the values.
Can I connect my Model 195Ea in EtherStation mode to a HUB or Ethernet Switch? – No. The modem must be connected directly
to the Ethernet device for which it is programmed. In EtherStation mode the Model 195Ea can only service ONE Ethernet device.
Revised: 6 Sep 11
APX F-6
EST P/N AA107A

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Electronic Systems Technology ESTEEM195EA Wireless LAN transceiver User Manual

Electronic Systems Technology Wireless LAN transceiver

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User Manual

FCC ID Filing: ENPESTEEM195EA

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