AvaLAN AW900iTR User manual

USER’S MANUAL
Industrial-grade, long-range wireless Ethernet systems
AvaLAN
WIRELESS
900 MHz Indoor Wireless Ethernet Radio
AW900iTR

AW900iTR
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User’s Manual
© 2009 by AvaLAN Wireless Systems Inc. All rights reserved.
Revision 090915.0
125A Castle Drive
Madison, AL 35758
Sales: [phone]
Technical Support: [phone]
Customer Service: [phone]
Fax: [phone]
Thank you for your purchase of the AW900iTR Indoor Wireless Ethernet Radio.
The AW900iTR includes:
• (1) Radio in indoor yellow plastic case
• (1) AW2-900 Flexible Antenna
• (1) 120 VAC to 6 VDC power adapter
(Ethernet cable not included.)
Ifyouhaveanyquestionswhenconguring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 [e-mail].
To speak to a live technician, please call technical support at the number below
during normal business hours.

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User’s Manual AW900iTR
Operational summary
The AW900iTR Radio allows the user to create a long-range, wireless Ethernet net-
workwithupto16subscriberunitsperaccesspoint.Thecongurationmayinclude
any combination of AW900iTR, 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 AW900iTR units because link encryption protocols have
changed.)
Conguring a wireless link with theAW900iTR 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.
The access point (AP) automatically scans for the best of the 12 available radio fre-
quency 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 AW900iTR
subscriberunit.EachSUencryptsEthernettrafc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
conguredandrunningitbehaveslikeacontinuousEthernetcable.

AW900iTR
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User’s Manual
Physical Setup
1.Beforeplacingtheradioinitsnallocation,youmaywanttoperformthedigital
setup procedure described in the next section.
2. Connect the AW900iTR’s TNC RF connector to a suitable antenna. A simple omni-
directional dipole unit (AW2-900) is included and may be used for testing and for
relatively undemanding applications. If greater range and/or directionality is re-
quired, choose one of our other antenna models. You may see them on our website
at www.avalanwireless.com.
3. Power is provided to the unit by means of the 120 VAC to 6 VDC wall hanger
power supply provided. If it is more convenient, power may be supplied through the
Ethernet cable, allowing the power supply to be located at a convenient location
away from the radio. A Power Over Ethernet Injector, AW-POE, provides the means
for adding DC power to unused wires in the cable. If you wish to use the AW-POE
and the Ethernet cable is more than 25 feet long between the POE and the radio,
you should use the accessory AW-12VPS wall hanging power supply. It provides 12
volts rather than 6 volts which will compensate for voltage drop in the cable and
connectors.
Digital Setup
1.DigitalcongurationisdonebymeansoftheAW900iTR’sbuiltinbrowserinter-
face. 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
ipnder.exe from the zip archive, placing it on your desktop or in a convenient
folder.
http://www.avalanwireless.com/ipnder/ipnder.zip
Note that this utility only runs on MS Windows, not linux or MAC. If you must use a
non-Windowscomputerforconguration,makesureyoursubnetmaskallowsyour
computer to see 192.168.17.17. Connect to that default IP address with your web
browser and continue the setup procedure with step 6.
3.RuntheIPDiscoveryUtility,ipnder.exeandyoushouldseeawindowsimilarto
the view on the next page.

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User’s Manual AW900iTR
The AW900iTR 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 subnet or
rewallissueonyourcomputer.
4. Double click the list item that refers to theAW900iTR being congured. 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 AW900iTR 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.”
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 ad-
dress 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].

AW900iTR
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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 sec-
tion 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conguration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 chan-
nels that avoid interference
• AsectiontobeusedifanupdatetotheAW900iTR’srmwareisrequired
• An Advanced Links section with a dire warning about advanced users only.
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
that on the next page.
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
specied(or“password”ifyoukeptthedefault).Iftheloginsucceeds,youwillsee
an admin page similar to this:

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User’s Manual AW900iTR
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 com-
municating with it.
• Clicktheboxlabeled“EnableUserSpecied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 opera-
tion. 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.

AW900iTR
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User’s Manual
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 war-
rantydoesnotcoverdefectsresultingfrommisuseormodicationoftheproduct.
Limited Warranty
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
900 MHz Channels