Quantum and Evolution Series Installation and Operating Handbook
7-160
Test-BER Test Menu
This menu contains the following options:
•
Tx.
This allows the setup of the internal Pseudo-Random-Bit-Sequence (PRBS)
Bit Error Rate (BER) Tester for the Tx path.
•
Rx.
This allows the setup of the internal PRBS BER Tester (BERT) for the Rx
path.
•
Results
. This screen displays the BER test results and allows single errors to be
injected or the test to be restarted.
The internal BER tester is available as a SAF option. It provides the ability to monitor the
BER of the Rx satellite path even while the main data channel of the link is carrying
normal traffic. It allows a test pattern to be sent and received in the main channel or in
parallel with the main channel using the ESC or Aux overhead channels.
It can operate independently or in conjunction with external BER equipment. The test
patterns are Fireberd compatible. For example, the internal BER tester could be used to
inject a PRBS test pattern and measure the Rx BER at one end of the link, while at the
other end a Fireberd is connected to the corresponding main data (or overhead) port.
Note that the following BER test screens apply to Tx and Rx but only the Tx screens are
shown.
BER test: 1:Tx
2:Rx
3:Results
