Figure - Cisco ONS 15454 Troubleshooting Manual

Chapter 1 General Troubleshooting

Figure 1-13

Test Set
Create the XC Loopback on a Destination-Node OCN STS
Connect an optical test set to the port you are testing:
Step 1
Note
a.
b.
Step 2 Adjust the test set accordingly. (Refer to manufacturer instructions for test-set use.)
Use CTC to put the circuit being tested out of service:
Step 3
a.
b.
c.
d.
e.
f.
Step 4 Use CTC to set up the XC loopback on the circuit being tested:
a.
b.
c.
d.
e.
Complete the
Step 5
November 2009
1.2.3 Perform an XC Loopback on a Destination-Node OC-N STS (West to East) Carrying an Electrical Signal
XC Loopback on a Destination OC-N Port
Source
ONS Node
DS-N
For specific procedures to connect, set up, and use the test set equipment, consult the
manufacturer.
If you just completed the
East)" procedure on page
If you are starting the current procedure without the optical test set hooked up to the destination port,
use appropriate cabling to attach the Tx and Rx terminals of the optical test set to the port you are
testing. The Tx and Rx terminals connect to the same port.
In node view, click the Circuits tab.
Click the circuit and then click Edit.
In the Edit Circuit dialog box, click the State tab.
Choose OOS,MT from the Target Circuit Admin State drop-down list.
Click Apply.
Click Yes in the confirmation dialog box.
In node view, double-click the OC-N card to open the card view.
Click the Maintenance > Loopback > SONET STS tabs.
Click the check box in the XC Loopback column for the port being tested.
Check Apply.
Click Yes in the confirmation dialog box.
"Test and Clear the XC Loopback Circuit" procedure on page
XC OC-N
"1.2.2 Perform a Hairpin Test on a Source-Node Electrical Port (West to
1-15, leave the optical test set hooked up to the destination-node port.
Cisco ONS 15454 Troubleshooting Guide, R8.5
Destination
ONS Node
OC-N XC DS-N
1-20.
1-19