Quantum and Evolution Series Installation and Operating Handbook
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towards the terrestrial interface. Remote loopback refers to returning remote signals
traveling in the direction of the terrestrial interface, back towards the satellite interface.
•
BER test.
This feature provides the ability to inject a test pattern into the modem,
through the main traffic channel or via an overhead channel and to monitor the results,
using the modem’s internal Pseudo-Random-Bit-Sequence (PRBS) Bit Error Rate
(BER) Tester.
•
RF.
This provides two types of signal – a CW (pure carrier) signal and an alternate 1,0
signal – that can be used to test modem operation.
•
IDR.
This provides a simple tone generator at 1 KHz @ 0dBm level either towards the
satellite or from satellite.
•
IP.
Allows a one-way satellite delay (in milliseconds) to be entered. This can be used in
modem back-to-back testing to simulate the normal satellite delay. It applies to IP traffic
only. It should always be set to 0 when using IP over satellite.
Test-Loopback Screen
Loopback:
[Off ]
New: Off
