AvaLAN
W I R E L E S S
AW900MTR
USER’S MANUAL
900 MHz IP Addressable OEM Radio Module
Industrial-grade, long-range wireless Ethernet systems
AW900MTR
Thank you for your purchase of the AW900MTR IP Addressable OEM Radio Module.
If you have any questions when conguring your AvaLAN system, the best place to
get answers is to visit www.avalanwireless.com.
You will also nd the latest updates there.
If more assistance is needed,
send email to support@avalanwireless.com.
To speak to a live technician, please call technical support at the number below
during normal business hours.
User’s Manual
Limited Warranty
This product is warranted to the original purchaser for normal use for a period of 360 days
from the date of purchase. If a defect covered under this warranty occurs, AvaLAN will repair
or replace the defective part, at its option, at no cost. This warranty does not cover defects
resulting from misuse or modication of the product.
© 2009 by AvaLAN Wireless Systems Inc. All rights reserved.
Revision 05.13.2009
125A Castle Drive
Madison, AL 35758
Sales: (866) 533-6216
Technical Support: (650) 384-0000
Customer Service: (650) 641-3011
Fax: (650) 249-3591
Technical support (650) 384-0000 www.avalanwireless.com
PAGE 2
User’s Manual
AW900MTR
Operational summary
The AW900XTR Radio allows the user to create a long-range, wireless Ethernet net-
work with up to 16 subscriber units per access point. The conguration may include
any combination of AW900MTR, AW900XTR and AW900XTP radios. (Please note that
older AvaLAN 900 MHz radios can exist on the same LAN but cannot be used to form
wireless links with the AW900MTR/XTR/XTP units because link encryption protocols
have changed.)
Conguring a wireless link with the AW900MTR requires the establishment of six
elements:
• Each radio must know whether it is to be an access point (AP) or subscriber
unit (SU).
• Each radio must have an IP address that is unique among all others on the
same network.
• The AP must know how many SUs are expecting communication with it.
• The AP and any given SU must agree on which radio frequency channel they
are using. This can be manually set or allowed to change automatically.
• The SU must be assigned a unique subscriber ID to specify which time division
slot it will use when communicating with the AP.
• The AP and any given SU must share a common 128-bit encryption key.
AW900MTR radios may be congured by two different methods. They may be con-
nected to a computer that will run a web browser, setting parameters via their
built-in browser interfaces. They may also be programmed via the older “easy key”
method using the DIP switches and LEDs on the module. If you wish to use the
older method, go to our website and download the user manual for the AW900IT or
AW900XT and follow the procedures there.
The access point (AP) automatically scans for the best of the 12 available radio frequency channels, encrypts Ethernet data received from the network, and transmits
it wirelessly to the correct subscriber unit (SU). The AP is constantly monitoring the
radio link and can automatically change the channel if performance is degraded due
to interference. If two AP units are very close to one another, they may interfere
if operating on adjacent frequency channels. Place them at least 10 feet apart or
manually select non-adjacent channels for their operation. Also, the SU should be
placed at least 10 feet from the AP to avoid overloading the radio’s receiver.
Any 10/100 BaseT Ethernet client device (ECD) can be connected to an AW900MTR
subscriber unit. Each SU encrypts Ethernet trafc received from the attached ECD
and transmits the data wirelessly to its AP. Each SU can be plugged directly into an
ECD without adding drivers or loading software. Essentially, once the AP/SU pair is
congured and running it behaves like a continuous Ethernet cable.
Technical support (650) 384-0000 www.avalanwireless.com
PAGE 3
AW900MTR
User’s Manual
Physical Dimensions
Power: 5-48 VDC
Ethernet: 10/100T
Power: 9-48 VDC
23 mm
Mounting Holes
66 mm
70 mm
Mounting Holes
Antenna:
Reverse polarity
SMA
900 MHz Channels
Channel Center Frequency
0 Auto Mode
1 903.12500 MHz
2 905.20833 MHz
3 907.29167 MHz
4 909.37500 MHz
5 911.45833 MHz
6 913.54167 MHz
7 915.62500 MHz
8 917.70833 MHz
9 919.79167 MHz
10 921.87500 MHz
11 923.95833 MHz
12 926.04167 MHz
Technical support (650) 384-0000 www.avalanwireless.com
PAGE 4
User’s Manual
AW900MTR
Digital Setup
1. Digital conguration is done by means of the AW900MTR’s built in browser interface. It
should be powered on and connected at least temporarily to a network containing a computer
that can run a conventional web browser.
2. Download the AvaLAN IP Discovery Utility from our website and extract
ipnder.exe from the zip archive, placing it on your desktop or in a convenient folder.
http://www.avalanwireless.com/ipnder/ipnder.zip
Note that this utility only runs on MS Windows, not linux or MAC. If you must use a non-
Windows computer for conguration, make sure your subnet mask allows your computer to
see 192.168.17.17. Connect to that default IP address with your web browser, continuing the
setup procedure with step 6.
3. Run the IP Discovery Utility, ipnder.exe and you should see a window similar to this:
The AW900MTR should appear in the list at the default IP address of 192.168.17.17. If it does
not, click “Search” to regenerate the list. If it still does not appear, you have a connection
issue and need to re-examine the cabling or you may have a rewall issue on your computer.
4. Double click the list item that refers to the AW900MTR being congured. You should see a
second window that is similar to this:
The information on the left is the current status of the radio, while the boxes on the right allow you to change it. It is important that the IP address of the AW900MTR is in the same subnet
as your computer. For example, if the subnet mask is 255.255.255.0 ( a class C network), the
rst three number groups of the IP address must match. Choose your desired parameters and
click “Apply.”
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PAGE 5
AW900MTR
5. Make note of the chosen IP address and password, then click “Go to Device Web Page.”
This will cause your default web browser to launch with the device IP address in the browser
address bar. Or you may launch the browser on your own and enter the web page address
manually: http://[the IP address you just set].
6. The browser page that loads rst shows the current device information and QoS statistics
and provides a login at the upper right. Log in using the password you just specied (or “pass-
word” if you kept the default). If the login succeeds, you will see an admin page similar to
this:
User’s Manual
7. The admin page has sections similar to the login page showing radio statistics and device
information plus it adds several new sections. The Device Settings section allows setting the
network information and choosing an RF frequency channel. The default is to allow the radio
to choose its own frequency based on minimizing interference. If you set a xed channel,
make sure the AP and all SUs use the same one. References to DIPs on this and the next web
page refer to switches inside the radio that are used in the legacy method of conguration and
may be ignored when using the browser method.
If you scroll down in the Admin browser page, you will come to three more sections:
• A graphical spectrum analyzer display that may help you to select radio channels that
avoid interference
• A section to be used if an update to the AW900MTR’s rmware is required
• An Advanced Links section with a dire warning about advanced users only.
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PAGE 6
User’s Manual
Despite the warning, you will need to click the “Advanced Admin” button in order to set the
device type, ID and encryption key. You should then see a page similar to this:
AW900MTR
8. On the Advanced Admin page, set the parameters as follows:
• Choose Device Type: Access Point or Subscriber Unit.
• For Subscriber Units, assign unique ID numbers in numeric order from 1 to 63.
• For an Access Point, enter the number of Subscriber Units that will be communicating
with it.
• Click the box labeled “Enable User Specied Keys.”
• Choose an 8-digit hex (0-9 and A-F) Network Name that will be common among the AP
and its SUs and enter it. The hyphen is required.
• Choose a 32-digit hex encryption key and enter it. Again, the hyphens are required.
This key must match between the AP and the SU so make a note of it as well.
After entering the parameters, click the “Apply” button to save them to the radio.
9. When all of the radios are keyed and operating, connect them to your network and Ethernet
devices as desired and cycle the radio’s power to begin normal operation. Now, browser mamagement of the SUs can be performed over the wireless network. Note: avoid plugging actively
linked radios into the same switch because this will corrupt its routing table and may cause
network problems just as if you had plugged a CAT5 cable directly between two ports of a
switch.
Technical support (650) 384-0000 www.avalanwireless.com
PAGE 7
AW900MTR
User’s Manual
FCC Certication
The AW900MTR OEM RF Module complies with Part 15 of the FCC rules and regulations.
Compliance with labeling requirements, FCC notices and antenna regulations is required.
IMPORTANT: The AW900MTR OEM RF Modules have been certied by the FCC for use with
other products without any further certication (as per FCC section 2.1091). Changes or
modications not expressly approved by AvaLAN could void the user’s authority to operate
the equipment.
IMPORTANT: OEMs must test their nal product to comply with unintentional radiators
(FCC section 15.107 and 15.109) before declaring compliance of their nal product to Part 15
of the FCC Rules.
IMPORTANT: The AW900MTR OEM RF Modules have been certied for xed base station
and mobile applications. If modules will be used for portable applications, the device must
undergo SAR testing.
Labeling Requirements
In order to inherit AvaLAN’s FCC Certication, compliance requires that the following be
stated on the device:
Contains FCC ID: R4N-AW900MR
The enclosed device 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.
The Original Equipment Manufacturer (OEM) must ensure that FCC labeling requirements are
met. This includes a clearly visible label on the outside of the nal product enclosure that
displays the contents shown in the box above.
User’s Manual Requirements
In order to inherit AvaLAN’s FCC Certication, compliance requires that the following be
stated in the user’s manual:
Compliance Statement ( Part 15.19 )
This device 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.
Warning ( Part 15.21 )
Changes or modications not expressly approved by the party responsible for compliance could void the user’s
authority to operate the equipment.
RF Exposure ( OET Bulletin 65 )
To comply with FCC RF exposure requirements for mobile transmitting devices, this transmitter should only be used
or installed at locations where there is at least 20cm separation distance between the antenna and all persons.
Information to the User - Part 15.105 (b)
This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15
of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and
used in accordance with the instructions, may cause harmful interference to radio communications. However, there
is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful
interference to radio or television reception, which can be determined by turning the equipment off and on, the
user is encouraged to try to correct the interference by one or more of the following measures:
--Reorient or relocate the receiving antenna.
--Increase the separation between the equipment and receiver.
--Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
--Consult the dealer or an experienced radio/TV technician for help.
Technical support (650) 384-0000 www.avalanwireless.com
PAGE 8
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