Figure 1-24 Xc Loopback On A Source Oc-N Port - Cisco ONS 15454 Troubleshooting Manual

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Chapter 1
General Troubleshooting
e.
f.
Clear the terminal loopback circuit before testing the next segment of the network circuit path:
Step 6
a.
b.
c.
d.
Complete the
Step 7
1.4.3 Perform an XC Loopback on the Source Optical Port
Note
This procedure is only performed on OC-N cards and tests the cross-connect circuit connection.
You can perform an XC loopback on either the circuit source working or the protect port of a 1+1
Note
protection group.
XC loopbacks do not require on-site personnel.
Note
The XC loopback test occurs on the 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.
OC-N port.
Figure 1-24
Test Set
Complete the
Create the XC Loopback on the Source-Node Optical Port
Connect an optical test set to the port you are testing:
Step 1
November 2009
Click Apply.
Click Yes in the confirmation dialog box.
Click the Circuits tab.
Choose the loopback circuit being tested.
Click Delete.
Click Yes in the Delete Circuits dialog box. Do not check any check boxes.
"1.4.3 Perform an XC Loopback on the Source Optical Port" procedure on page
XC Loopback on a Source OC-N Port
OC-Nx
XC
"Create the XC Loopback on the Source-Node Optical Port" procedure on page
1.4.3 Perform an XC Loopback on the Source Optical Port
Figure 1-24
shows an example of an XC loopback path on a source
OC-Ny
Cisco ONS 15454 Troubleshooting Guide, R8.5
1-53.
1-53.
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