
Configuring Line Services
C-4 114078 Rev. A
Enabling or Disabling BERT Mode
Enable BERT mode for BERT testing.
By setting this parameter, you enable or disable BERT mode on all logical lines
on all but QMCT1 interfaces. On QMCT1 interfaces, you can enable or disable
BERT mode on individual logical lines.
Setting the BERT Alarm Type
You can specify the type of alarm signal to be generated while in BERT mode, or
disable the generation of alarm messages altogether.
Select AIS (alarm indication signal) to transmit Blue alarms (all 1s). Select Yellow
to transmit Yellow alarms (all 0s).
Setting the BERT Test Pattern
When a port is in BERT mode, it can generate patterns such as all 1s, all 0s, or a
quasi-random signal sequence (QRSS) pattern. Valid test pattern options are:
• Zero
• Ones
• QRSS
• 2e15
• 2e15 Inverted
• 2e20
• 2e23
• 2e23 Inverted
Specify the bit pattern to be transmitted during BERT diagnostics.
Setting the Line Coding Method
How you set line coding depends on whether you are testing an MCE1 or MCT1
line.
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