Cisco ONS 15327 User Documentation page 369

Chapter 12 Maintenance
Procedure: Test the DS-N Cabling
Replace the suspect cabling (the cables from the test set to the MIC ports) with a known-good cable.
Step 1
If a known-good cable is not available, test the suspect cable with a test set. Remove the suspect cable
Step 2
from the MIC and connect the cable to the transmit (Tx) and receive (Rx) terminals of the test set. Run
traffic to determine whether the cable is good or suspect.
Resend test-set traffic on the loopback circuit with a known-good cable installed.
Step 3
If the test set indicates a good circuit, the problem was probably the defective cable.
Step 4
a.
b.
c.
Step 5 If the test set indicates a faulty circuit, the problem may be a faulty card. Proceed to the
Card" procedure on page
Procedure: Test the XTC Card
Step 1 Replace the suspect card with a known-good card.
Resend test-set traffic on the loopback circuit with a known-good card installed.
Step 2
If the test set indicates a good circuit, the problem was probably a defective card. Return the defective
Step 3
card to Cisco through the returned materials authorization (RMA) process. Call the Cisco Technical
Assistance Center (TAC) at 1-877-323-7368 to open an RMA case.
a.
b.
Step 4 If the MIC card was at fault and has been replaced successfully, proceed to the
Circuit on a Source Node XTC Card" procedure on page
Step 5 If the MIC card was not shown to be at fault but the loopback test was unsuccessful, proceed to the
the MIC Card" procedure on page
Procedure: Test the MIC Card
Step 1 Replace the suspect card with a known-good card.
Resend test-set traffic on the loopback circuit with a known-good card installed.
Step 2
Step 3 If the test set indicates a good circuit, the problem was probably a defective card. Return the defective
card to Cisco through the returned materials authorization (RMA) process. Call the Cisco Technical
Assistance Center (TAC) at 1-877-323-7368 to open an RMA case.
a.
June 2002
Make sure the faulty cable is replaced with known-good cable (such as the cable used for testing or
another cable that has been tested before installation).
Clear the loopback circuit before testing the next segment of the network circuit path.
Proceed to the "Perform a Hairpin Circuit on a Source Node XTC Card" procedure on page
12-23.
Make sure the faulty card is replaced with known-good card (such as the card used for testing or
another card which has been tested before installation).
Clear the loopback circuit before testing the next segment of the network circuit path.
Make sure the faulty card is replaced with known-good card (such as the card used for testing or
another card which has been tested before installation).
12-24.
12-23.
Cisco ONS 15327 User Documentation, R3.3
Network Test Procedures
12-24.
"Test the XTC
"Perform a Hairpin
"Test
12-23