Cisco ONS 15454 Troubleshooting Manual page 24

1.3.5 Perform a Facility (Line) Loopback on a Destination DS-N Port (East to West)
Click Yes in the confirmation dialog box.
Step 8
Complete the
Step 9
If the test set indicates a faulty circuit, the problem might be a faulty card or a faulty EIA.
Complete the
Step 10
Test the DS-N Card
Step 1 Complete the
replace it with a known-good one.
Step 2 Resend test traffic on the loopback circuit with a known-good card installed.
Step 3 If the test set indicates a good circuit, the problem was probably the defective card. Return the defective
card to Cisco through the Return Materials Authorization (RMA) process. Contact Cisco TAC (1 800
553-2447).
Step 4 Complete the
Step 5 In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs,
Maintenance > DS1 tabs, or Maintenance > DS3 tabs.
Step 6 Choose None from the Loopback Type column for the port being tested.
Step 7 Choose the appropriate state (IS, OOS, OOS_AINS) from the State column for the port being tested.
Step 8 Click Apply.
Step 9 Click Yes in the confirmation dialog box.
Step 10 Complete the
If the test set indicates a faulty circuit, the problem might be a faulty EIA.
Step 11 Complete the
Test the EIA
Step 1 Remove and reinstall the EIA to ensure a proper seating:
a.
b.
c.
d.
Step 2 Resend test traffic on the loopback circuit with known-good cabling, a known-good card, and the
reinstalled EIA. If the test set indicates a good circuit, the problem was probably an improperly seated
EIA, and you can proceed to
seated, proceed to
In card view for the DS-N card, depending upon the type, click the Maintenance > Loopback tabs,
Step 3
Maintenance > DS1 tabs, or Maintenance > DS3 tabs.
Cisco ONS 15454 Troubleshooting Guide, R4.6
1-24
"Perform a Hairpin Test on a Source Node Port (West to East)" procedure on page
"Test the DS-N Card" procedure on page
"Physically Replace a Card" procedure on page 2-219
"Physically Replace a Card" procedure on page 2-219
"Perform a Hairpin Test on a Source Node Port (West to East)" procedure on page
"Test the EIA" procedure on page
Remove the lower backplane cover. Loosen the five screws that secure it to the ONS 15454 and pull
it away from the shelf assembly.
Loosen the nine perimeter screws that hold the EIA panel in place.
Lift the EIA panel by the bottom to remove it from the shelf assembly.
Follow the installation procedure for the appropriate EIA. See the
Assembly" procedure on page
Step
Step 3.
1-10.
1-11.
3-17.
16. If the problem persists and the EIA is not shown to be improperly
Chapter 1 General Troubleshooting
for the suspected bad card and
for the faulty card.
"Replace an Electrical Interface
November 2004
1-12.
1-12.