Nortel Communication Server 1000 Series Manual page 108

108 Remote IPE acceptance testing
6
7
Additional exercise of the MMI terminal is conducted when testing the
fiber-optic link protection switching.
Checking link protection switching
To verify that the fiber-optic link protection switching is operating correctly,
conduct the following tests with the span:
•
•
Manual switch-over
This is a bidirectional switch-over. To conduct this test, follow the steps in
Procedure 32 "Performing a manual switch-over" (page
Procedure 32
Performing a manual switch-over
Step
1
2
3
4
Copyright © 2007-2009 Nortel Networks
.
Check the log file content by executing the D A [P] to print
near-end log messages from the file starting with the oldest
message.
Examine the messages.
Check the log file content by executing the D A D to print far-end
log messages from the file starting with the oldest message.
Examine the messages.
manual switch-over
forced switch-over
Note:
These tests can be conducted only with a redundant link
configuration.
Action
Check the status of the fiber-optic link by executing the D S
command from the MMI terminal.
Make sure that both the primary and the redundant links are
functional without an alarm condition on the Fiber Remote
Multi-IPE Interface faceplate.
Establish a call from the Remote IPE to the local site.
Refer to "Voice calls" (page 105)
Assuming that the traffic is carried by the primary link, switch the
link to the secondary by unplugging the primary link connector
from the Fiber Remote Multi-IPE Interface faceplate XMIT A
connector.
Verify that the call is still established over the secondary link.
Nortel Communication Server 1000
Fiber Remote Multi-IPE Interface Fundamentals
NN43021-556 03.01
11 May 2009
--End--
108).
to establish the call.