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Chapter 1
General Troubleshooting
If the test set indicates a good circuit, the problem is probably the defective card. Return the defective
Step 3
card to Cisco through the RMA process. Log into the Cisco Technical Support Website at
http://www.cisco.com/techsupport for more information or log into
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml to obtain a directory of toll-free Cisco
TAC numbers for your country.
Replace the faulty card. Complete the
Step 4
the faulty card.
Double-click the card to display the card view.
Step 5
Click the Maintenance > Loopback tabs.
Step 6
Choose None from the Loopback Type column for the port being tested.
Step 7
Choose the appropriate state (Unlocked; Locked,disabled; Unlocked,automaticInService) from the
Step 8
Admin State column for the port being tested.
Click Apply.
Step 9
Click Yes in the confirmation dialog box.
Step 10
Complete the
Step 11
Test the FMEC
Remove and reinstall the FMEC card to ensure a proper seating:
Step 1
a.
b.
c.
d.
Step 2
Resend test traffic on the loopback circuit with known-good cabling, a known-good card, and the
reinstalled FMEC card. If the test set indicates a good circuit, the problem is probably an improperly
seated FMEC card.
Clear the facility (line) loopback:
Step 3
a.
b.
c.
d.
e.
The entire electrical circuit path has now passed its comprehensive series of loopback tests. This circuit
qualifies to carry live traffic.
If the test set indicates a faulty circuit, the problem is probably the defective FMEC card. Return the
Step 4
defective FMEC card to Cisco through the RMA process. Log into the Cisco Technical Support Website
at http://www.cisco.com/techsupport for more information or log into
http://www.cisco.com/warp/public/687/Directory/DirTAC.shtml to obtain a directory of toll-free Cisco
TAC numbers for your country.
Step 5
Complete the
July 2005
1.2.5 Perform a Facility (Line) Loopback on a Destination-Node Electrical Port (East to West)
"Test the FMEC" procedure on page
Unscrew the screws on the FMEC cover and pull the cover forward.
Loosen the faceplate screws that hold the FMEC card in place.
Pull the FMEC card outward by the faceplate to unseat it from the shelf assembly.
Push the FMEC card back inward by the faceplate to reseat it in the shelf assembly.
Click the Maintenance > Loopback tabs.
Choose None from the Loopback Type column for the port being tested.
Choose the appropriate state (Unlocked; Locked,disabled; Unlocked,automaticInService) from the
Admin State column for the port being tested.
Click Apply.
Click Yes in the confirmation dialog box.
"Physically Replace a Traffic Card" procedure on page 2-271
"Physically Replace a Traffic Card" procedure on page 2-271
1-27.
Cisco ONS 15454 SDH Troubleshooting Guide, R5.0
for
for the faulty FMEC card.
1-27
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