User's Manual

Exalt Communications, Inc.
EX-5r Installation & Management
5000007 59
2006-05-17
Figure B-1: Basic Back-to-Back Bench Test Configuration
Connect the items as follows:
- Connect attenuation and (known-good) RF cable(s) between radio pair, as shown
in Figure B-1.
- Configure one radio to be Radio A, the other to be Radio B
- Power on radio pair
For the basic test on the integral antenna version, the following items are needed:
- Radio pair
- Powering source
- RF absorbing material (e.g. Emerson Cummings Echosorb, minimum 60dB at
5GHz)
 Computer/Terminal with Ethernet port
The RF absorbing material is used in place of fixed cables and attenuators.
After connecting and powering on, the GUI may be observed to verify that the Link and Status
alarms both green. If they are green, the radios are communicating and all radio-related alarm
conditions are normal.
B-3 Specification Performance Verification
The specification performance verification is a more detailed test that allows you to verify that
the radio’s output power and threshold specifications are being met. This test can be challenging,
and potentially impossible, to do with the integrated antenna versions. This is typically a test that
would only be performed in a troubleshooting scenario, but can be performed before installation
if you wish to have a detailed record or be extremely certain of the radio performance before
installation.
This test is identical to the basic test, but in place of the fixed attenuation, it requires the use of
calibrated variable attenuation, or a set of calibrated fixed attenuators, or a combination of both,
adding to a total attenuation value of 120dB, as measured at the operating frequency of the radio
(roughly 5.8 GHz, in this case). In addition, a voltmeter or computer is also required.
Radio B Radio A
Attenuation
(
60-90dB
)
RF Ports
Power
(
connect last
)
Power
(
connect last
)
Computer
Console Port
Serial Port