Cisco Systems 15454 2.2.3 Network-Level Indicators

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Cisco ONS 15454 Reference Manual, R7.0
78-17191-01
Chapter 2 Common Control Cards
2.2 2.2.3 Network-Level Indicators
2.2.3 Network-Level Indicators
Table 2-9 describes the six network-level LEDs on the TCC2 faceplate.
Table 2-8 TCC2 Card-Level Indicators
Card-Level LEDs Definition
Red FAIL LED This LED is on during reset. The FAIL LED flashes during the boot and
write process. Replace the card if the FAIL LED persists.
ACT/STBY LED
Green (Active)
Amber (Standby)
Indicates the TCC2 is active (green) or in standby (amber) mode. The
ACT/STBY LED also provides the timing reference and shelf control. When
the active TCC2 is writing to its database or to the standby TCC2 database,
the card LEDs blink. To avoid memory corruption, do not remove the TCC2
when the active or standby LED is blinking.
Table 2-9 TCC2 Network-Level Indicators
System-Level LEDs Definition
Red CRIT LED Indicates critical alarms in the network at the local terminal.
Red MAJ LED Indicates major alarms in the network at the local terminal.
Amber MIN LED Indicates minor alarms in the network at the local terminal.
Red REM LED Provides first-level alarm isolation. The remote (REM) LED turns red when
an alarm is present in one or more of the remote terminals.
Green SYNC LED Indicates that node timing is synchronized to an external reference.
Green ACO LED After pressing the alarm cutoff (ACO) button, the ACO LED turns green.
The ACO button opens the audible alarm closure on the backplane. ACO is
stopped if a new alarm occurs. After the originating alarm is cleared, the
ACO LED and audible alarm control are reset.