Nortel SONET AccessNode Manual page 68

3-6 Tributary and optical tests for VTBM rings
Procedure 3-1 (continued)
Verifying OC-3 tributary SONET test set performance
Step
Verify the OC-3 circuit pack
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AccessNode Vol 3B 323-3001-221 Issue 2.0
Action
CAUTION
Risk of damaging circuit pack
Never connect an optical level higher than
− 8.0 dBm for OC-3 IR
− 10.0 dBm for OC-3 LR.
Connect the SONET test set to the OC-3 circuit pack under test.
Connect the output from the test set to the Receive of the OC-3 circuit pack.
Note: If you have more than one OC-3 tributary circuit pack, you can
daisy-chain them together by connecting the Transmit of the first OC-3 circuit
pack to the Receive of the next. If the shelf is fully equipped with OC-3
tributaries, do this for G1S, G3, G5, G7. Ensure that the output level of each
OC-3 tributary circuit pack is − 20 dBm. At the last circuit pack of the
daisy-chain, connect the Transmit of the OC-3 circuit pack to the input of the
test set.
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