12-29
Cisco ONS 15327 User Documentation, R3.3
June 2002
Chapter 12 Maintenance
Network Test Procedures
Procedure: Create the Terminal Loopback on a Destination XTC Card
Step 1
Connect an electrical test set to the port you are testing:
•
If you are starting the current procedure with the electrical test set hooked up to the MIC card in the
source node, leave the test set hooked up.
•
If you are starting the current procedure without the electrical test set hooked up to the MIC card,
use appropriate cabling to attach the transmit (Tx) and receive (Rx) terminals of the electrical test
set to the MIC connectors for the port you are testing. Both transmit (Tx) and receive (Rx) connect
to the same port.
Step 2
Use CTC to set up the source loopback circuit on the port being tested.
Step 3
Use CTC to set up the terminal loopback circuit on the port being tested.
Step 4
Confirm that the newly created circuit appears on a Circuits screen row with a direction column that
shows a 2-way circuit.
Note
Loopbacks operate only on in-service ports.
Note
It is normal for an alarm to appear during a loopback setup. The alarm clears when you
remove the loopback.
Step 5
Proceed to the
“Test the Terminal Loopback Circuit on the Destination XTC Card” procedure on
Procedure: Test the Terminal Loopback Circuit on the Destination XTC Card
Step 1
If the test set is not already sending traffic, send test-set traffic on the loopback circuit.
Step 2
Examine the test traffic being received by the test set. Look for errors or any other signal information
that the test set is capable of indicating.
Step 3
If the test set indicates a good circuit, no further testing is necessary on the loopback circuit. Proceed to
the
“Perform a Facility Loopback on a Destination XTC Card” procedure on page 12-30
Step 4
If the test set indicates a faulty circuit, the problem may be a faulty card. Proceed to the
Destination XTC Card” procedure on page 12-30
.
Summary of Contents for ONS 15327
Page 22: ...Contents xxii Cisco ONS 15327 User Documentation June 2002 I N D E X ...
Page 30: ...Figures xxviii Cisco ONS 15327 User Documentation June 2002 ...
Page 44: ...Procedures xlii Cisco ONS 15454 Installation and Operations Guide R3 2 June 2002 ...
Page 540: ...Glossary GL 16 Cisco ONS 15327 User Documentation R3 3 June 2002 ...