Exalt Communications, Inc.
r-series
Installation and Management Manual
5000007 (ETSI)
83
2007-02-12 (draft)
Figure 34
Basic back-to-back bench test configuration
EX-5r Basic Test Configuration
When the radios are near one another, the integral antenna provides the connection. Place an
RF-absorptive material such as wood or RF absorbing foam between the units to provide
attenuation.
Do
not
point the radios directly towards one another when they are in close
proximity.
Power received from an adjacent radio at full power will damage both radios. Turn the
transmitter power down and separate the radios as far apart as possible. Use an RF-absorptive
material in between the antennas for additional safety.
Verify Connection
After connecting and powering on, observe the front panel LEDs to verify that the LINK and
STATUS LEDs are green. If so, the radios are communicating and all radio-related alarm
conditions are normal.
It can be beneficial to have a computer to verify configuration in case of red LEDs or to pre-
configure the radio as desired for operation. Follow the instructions in Configuration and
Management.
Specification Performance Verification—EX-5r-(x)c only
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 is typically a test that
would only be performed in a troubleshooting scenario, but can be performed before installation
to provide a detailed record or ensure 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.
In addition, a volt meter or computer is also required.
CAUTION
RADIO B
RADIO A
ATTENUATION
(60-90DB)
RF PORTS
POWER
INJECTOR
AC POWER
(CONNECT LAST)
COMPUTER
POWER
INJECTOR
AC POWER
(CONNECT LAST)