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Row 2 – EXFO IQS-8100 Series Transport Blazer for IQS-600 User Manual

Page 197

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OTN Tabs

SONET/SDH Application

183

ODU OH TX

Row 2

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RES: The three Reserved (RES) bytes are configurable from 00 to FF.
The default value for each byte is 00.

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PM&TCM: The Path Monitoring & Tandem Connection Monitoring is
configurable from 00 to FF. The default value is 00.

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TCM ACT: The Tandem Connection Monitoring Activation is
configurable from 00 to FF. The default value is 00.

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TCM6/TCM5/TCM4 (Row 2) and TCM3/TCM2/TCM1 (Row 3): The
Tandem Connection Monitoring overhead contains the following bytes.

The first TCMi byte contains the TTI multiframe byte and is only
configurable from ODU TTI/FTFL TX on page 186.

The second TCMi byte contains the BIP-8 byte and is automatically
generated for each frame. This byte is not configurable.

The third TCMi byte contains the following sub-fields. This byte is
configurable from 00 to FF. The default value is 00 when TCMi is
disabled, and 01 when enabled.

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FTFL: The Fault Type Fault Location multiframe byte is only
configurable from ODU TTI/FTFL TX on page 186.

Sub-field

Bit

BEI/BIAE

1-4

BDI

5

STAT

6-8