Network-Level Indicators - Cisco ONS 15454 Reference Manual

Chapter 2 Common Control Cards
Table 2-8
Card-Level LEDs
Red FAIL LED
ACT/STBY LED
Green (Active)
Amber (Standby)

2.2.3 Network-Level Indicators

Table 2-9
Table 2-9
System-Level LEDs
Red CRIT LED
Red MAJ LED
Amber MIN LED
Red REM LED
Green SYNC LED
Green ACO LED
OL-9217-01
TCC2 Card-Level Indicators
Definition
This LED is on during reset. The FAIL LED flashes during the boot and
write process. Replace the card if the FAIL LED persists.
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.
describes the six network-level LEDs on the TCC2 faceplate.
TCC2 Network-Level Indicators
Definition
Indicates critical alarms in the network at the local terminal.
Indicates major alarms in the network at the local terminal.
Indicates minor alarms in the network at the local terminal.
Provides first-level alarm isolation. The remote (REM) LED turns red when
an alarm is present in one or more of the remote terminals.
Indicates that node timing is synchronized to an external reference.
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.
2.2 2.2.3 Network-Level Indicators
Cisco ONS 15454 Reference Manual, R7.0.1
2-9