Nortel SONET AccessNode Manual page 25

Procedure 2-1 (continued)
Verifying STS-1 tributary SONET test set performance
Step
STS-1 receiver test set
4
5
Verify test set
6
7
8
9
Verify the STS-1 circuit pack
10
11
Action
Set the receive settings to match the transmit settings.
Connect the electrical patchcord between input and output.
Press Restart on the test set.
The test set displays zero errors and alarms.
Press the Single Bit Error Inject button 3 times.
The STS-1 receiver test set displays 3 errors.
If you did not obtain the required results, check the settings and repeat the
test. If necessary, replace the test set or the patchcords.
Note: Clean the STS-1 connectors and ensure proper mating of the
connectors.
Disconnect the electrical patchcord.
Connect the SONET test set to the STS-1 circuit pack under test.
Connect the output from the test set to the Receive of the STS-1 circuit pack.
Note: If you have more than one STS-1 interface circuit pack, you can
daisy-chain them together by connecting the Transmit of the first STS-1 circuit
pack to the Receive of the next. If the shelf is fully equipped with STS-1
tributaries, do this for all circuit packs. At the last circuit pack of the
daisy-chain, connect the Transmit of the STS-1 circuit pack to the input of the
test set.
—end—
AccessNode Site Testing Procedures 323-3001-221 Issue 2.0
DS3 tests, STS-1 tests, and optical in-bay tests 2-7