2-117
Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.192 UNPROT-XCMTX
This condition is normal following a change to the system timing reference (such as BITS to Line or
Line to BITS). Changing the clock reference causes both TSC cards to raise the
, for 700 seconds. The UNPROT-SYNCCLK alarm occurs during this period. If both TSC
cards are reset within 700 seconds of each other, this alarm occurs also and remains until both TSC cards
attains the clock reference. If the alarm does not clear, follow the
Alarm” procedure on page 2-117
.
Clear the UNPROT-SYNCCLK Alarm
Step 1
Determine whether one or both TSC cards have the
“FSTSYNC” condition on page 2-64
raised. If either
TSC card has a FSTSYNC condition, wait 700 seconds for the condition and the UNPROT-SYNCCLK
alarm to clear.
Step 2
If FSTSYNC was reported and continues after 700 seconds, replace the standby TSC card. Continue with
Step 3
If FSTSYNC is not reported, from node view, click the
Provisioning > Timing > General
tabs.
Step 4
Verify the current configuration for REF-1 of the NE Reference.
If the primary reference clock is an incoming port on the ONS 15600 SDH, follow the
(STMN) Alarm” procedure on page 2-83
Step 5
If no protect TSC card is installed, install one. Refer to the “Install Cards and Fiber-Optic Cable” chapter
in the
Cisco ONS 15600 SDH Procedure Guide
for instructions.
Step 6
If the alarm persists, remove and reinsert (reseat) the standby TSC card by completing the following
steps and wait 700 seconds for the TSC card to acquire the reference.
a.
Open the card ejectors.
b.
Slide the card out of the slot.
c.
Slide the card into the slot along the guide rails.
d.
Close the ejectors.
Step 7
If the alarm reappears after you perform the switch, complete the
“2.8.5 Verify or Create Node DCC
Terminations” procedure on page 2-139
on the standby TSC card and wait 700 seconds for the TSC card
to acquire the reference.
Note
It takes approximately 20 minutes for the active TSC card to transfer the system software to the
newly installed TSC card. Software transfer occurs in instances where different software
versions exist on the two cards. When the transfer completes, the TSC card reboots and goes into
standby mode after approximately three minutes.
Note
If the active and standby TSC cards have the same versions of software, it takes approximately
three minutes for software to be updated on a standby TSC card.
2.6.192 UNPROT-XCMTX
Default Severity: Minor (MN), Non-Service-Affecting (NSA)
Summary of Contents for Cisco ONS 15600 SDH
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