Selecting Test Features

Generating Overhead Sequences

Generating Overhead Sequences

Description You may insert a pattern into a functional group of overhead bytes for testing or troubleshooting purposes.

HOW TO:

1

Set up the SONET transmit interface and payload required. See

 

 

“Setting SONET Transmit Interface” page 4.

 

2

Choose the type of sequence required.

 

 

SINGLE RUN - runs the sequence once and then stops.

 

 

REPEAT RUN - runs the sequence repeatedly until STOPPED is

 

 

chosen.

 

 

 

 

3

Choose the overhead type as required.

 

 

SOH- Section Overhead

 

 

 

 

 

LOH- Line Overhead

 

 

 

 

 

POH - Path Overhead

 

 

 

 

4

Choose the byte or bytes of overhead required.

 

5

Set up the required number of data patterns and the number of

 

 

frames in which each data pattern should appear.

 

 

Your sequence is derived from up to 5 blocks of hexadecimal data. Each

 

 

block can be transmitted in up to 64,000 frames.

 

 

The data and the number of frames are set using

DECREASE DIGIT

 

 

 

INCREASE DIGIT

 

 

 

.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

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HP BER 718 37718A manual Generating Overhead Sequences