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EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 338

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SDH Tabs

324

IQS-8100 Series Transport Blazer

Multiplex Section RX (SDH)

For STM-64: The MS-REI error is declared when either the M1 byte
located in the timeslot #7 (STM-1 channel 3) indicates that one or
more BIP violations have been detected, or the combination of the M0
and M1 bytes indicates that one or more BIP violations have been
detected. Refer to OC-192/STM-64 REI-L/MS-REI on page 542 for MS-REI
computation method.

M1

Indicates

0000 0000

0 BIP violation

0000 0001

1 BIP violation

0000 0010

2 BIP violations

:

:

1111 1111

255 BIP violations

M0

Located in STM-1

channel 2 (timeslot #4)

M1

Located in STM-1

channel 3 (timeslot #7)

Indicates

0000 0000

0000 0000

0 BIP violation

0000 0000

0000 0001

1 BIP violation

0000 0000

0000 0010

2 BIP violations

:

:

0000 0110

0000 0000

1536 BIP violations

0000 0110

0000 0001

0 BIP violation

:

:

1111 1111

1111 1111

0 BIP violation