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 |
|
|
| . |
|
|
|
|
|
| |||||
|
|
|
|
| ||||
|
|
|
|
|
|
| ||
|
|
|
|
|
|
|
27