
Configuring MCE1 and MCT1 Services
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Setting the BERT Test Pattern
When a port is in BERT mode, it can generate patterns such as all ones, all zeros,
or a QRSS pattern. Use Site Manager to set the BERT test pattern.
See the BERT Test Pattern parameter on page A-54 for information.
Setting the Line-Coding Method
How you set line coding depends on whether you are testing an MCE1 or MCT1
line:
• The MCE1 port uses HDB3 transmit and receive line coding by default. You
can select AMI line coding instead.
• The MCT1 port uses B8ZS transmit and receive line coding by default. You
can select AMI line coding instead.
For a description of these line-coding methods, see “Setting the MCE1 Line
Coding” or “Setting the MCT1 Line Coding” on pages 7-9
and 7-19 respectively.
Setting the Line Type
The line-type setting depends on whether you are testing an MCE1 or MCT1 line:
• MCE1 line -- Select the appropriate frame format for the associated E1
equipment you are testing:
• E1 -- The default
• E1 CRC -- Adds a 4-byte CRC trailer at the end of each frame
• MCT1 line -- Select the appropriate frame format for testing:
• ESF -- The default; FDL port actions apply
• SF/D4
For a detailed description of SF and ESF formats, see “Setting the T1 Frame
Type” in Chapter 6.
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