Exalt Communications, Inc.
r-series
Installation and Management Manual
5000007 (ETSI)
82
2007-02-12 (draft)
Back-to-back Bench Testing
Use back-to-back bench testing to test the radio before installation, pre-configure the radio and
connected equipment before installation, or in the troubleshooting process to identify if the radio
hardware is the source of a system issue. It is a critical process, and often required or highly
desirable for any installation or troubleshooting exercise. This section describes how to properly
configure the radio hardware and accessories for a proper back-to-back bench test.
For radio testing, there are two types of back-to-back configurations:
1.
Basic test (test general operation)
2.
Specification performance verification (EX-5r-c only)
Basic Test
The basic test is a simple test of radio functionality. It verifies that the radios are properly
configured to communicate to one another, and verifies general radio performance as
operational.
For the basic test, the following items are needed:
•
Radio pair
•
Powering source
•
Computer/terminal with Ethernet port
EX-5r-c only
•
RF interconnect cable(s) (any length – short is best)
•
Fixed or variable attenuation, between 60 and 90dB (note: attenuation for basic test does not
to be calibrated or precise)
Connections EX-5r-c only
Connect the items as follows:
1.
Connect attenuation and (known-good) RF cable(s) between radio pair, shown in Figure 34.
2.
Configure one radio as Radio A; the other as Radio B
3.
Power on radio pair