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Cisco ONS 15600 SDH Troubleshooting Guide, R8.0
July 2010
Chapter 2 Alarm Troubleshooting
2.6.199 XCMTX
Logical Objects: STMN, VCMON-HP
The Wait to Restore condition indicates that revertive switching is specified and that a switch to
protection occurred. When the working path is viable, this condition occurs while the wait to restore
timer has not expired. The condition clears when the timer expires and traffic switches back to the
working path.
2.6.199 XCMTX
Default Severity: Critical (CR), Service-Affecting (SA)
Logical Object: NE
The Unavailable Cross-Connection Matrix Equipment alarm indicates no cross-connection matrix on the
NE (node). If there was previously a single SSXC card running in unprotected mode, that card fails. If
there were two cards running in protected mode, the matrix has become unavailable on both.
Troubleshoot with the
“Clear the UNPROT-XCMTX Alarm” procedure on page 2-118
.
2.7 LED Behavior
The following the subsections describe LED behaviors of the TSC card, SSXC card, and STM-N cards.
2.7.1 TSC Card-Level Indicators
lists typical card-level TSC card LED behaviors.
2.7.2 TSC Card Network-Level Indicators
lists typical network-level TSC card LED behaviors.
Table 2-13
TSC Card-Level Indicators
Indicator LED
Color
Definition
STAT
Red
Indicates a hardware fault; this LED is off during normal operation.
Replace the card if the STAT LED persists. During diagnostics, the LED
flashes quickly during initialization and slowly during configuration
synchronization.
SRV
Green
The service mode of the card; green indicates that the card is in use and
no light indicates that the card can be removed for service.
ACT/STBY
Green
The ACT/STBY (Active/Standby) LED indicates that the TSC card is
active (green) or standby (off). It is not present on the optical cards.
Table 2-14
TSC Card Network-Level Indicators
Indicator LED
Color
Definition
LINE
Green
Node timing is synchronized to a line timing reference.
EXTERNAL
Green
Node timing is synchronized to an external timing reference.
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