Cisco ONS 15454 Troubleshooting Manual page 44

1.5.3 Create the XC Loopback on the Source OC-N Port
b.
c.
d.
Complete the
Step 7
1.5.3 Create the XC Loopback on the Source OC-N Port
This procedure is only performed on OC-N cards and tests the XC-10G circuit connection.
Note
The cross-connect (XC) loopback test occurs on the XC10G cross-connect card in a network circuit.
Completing a successful XC loopback from an OC-N card through the cross-connect card eliminates the
cross-connect card as the source of trouble for a faulty circuit.
loopback on a source OC-N port.
Figure 1-23 XC Loopback on a Source OC-N Port
Test Set
Step 1 Connect an optical test set to the port you are testing:
Note
a.
b.
c.
Use CTC to put the circuit being tested out of service:
Step 2
a.
b.
c.
d.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-44
Choose the loopback circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box.
"Create the XC Loopback on the Source OC-N Port" procedure on page
OC-Nx XC
Refer to the manufacturer's instructions for detailed information about connection and setup of
the optical test set.
If you just completed the "Perform a Terminal (Inward) Loopback on a Source-Node OC-N,
G-Series, MXP, or TXP Port" procedure on page
source node port.
If you are starting the current procedure without the optical test set hooked up to the source 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.
Adjust the test set accordingly.
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 State drop-down list.
OC-Ny
1-40, leave the optical test set hooked up to the
Chapter 1 General Troubleshooting
1-44.
Figure 1-23 shows an example of an XC
November 2004