Cabletron Systems SFCS-1000 User Manual
3-21
Switch Hardware
3.2.7.3
CEC Status LEDs
This subsection discusses the meaning of the status LEDs on the CEC of the
SFCS-1000 switch. The LEDs have been designed to provide information per-
taining to the state of the switch at a glance.
SFCS-1000 switch. The LEDs have been designed to provide information per-
taining to the state of the switch at a glance.
Figure 3.11 -
CEC Status LEDs
There are eight status LEDs located on the front panel of the CEC in a 2 row x
4 column arrangement. The only LEDs that are actually labeled are AL1 and
AL2, but for the purposes of discussion, the other LEDs will be referred to as
labeled in Figure 3.11. The LEDs have been broken down into the following
function groups: alarm LEDs, power supply LEDs, and switch board LEDs.
4 column arrangement. The only LEDs that are actually labeled are AL1 and
AL2, but for the purposes of discussion, the other LEDs will be referred to as
labeled in Figure 3.11. The LEDs have been broken down into the following
function groups: alarm LEDs, power supply LEDs, and switch board LEDs.
3.2.7.3.1
Alarm LEDs
The LEDs labeled AL1 and AL2 are alarm relay LEDs. During boot-up, AL1
and AL2 are in an indeterminate state. During normal operation, they will be
off. During a state of alarm, they will illuminate red. By default, AL1 is the
major alarm indicator for SPANS failure and for link failure. By default, AL2
is the minor alarm indicator for fan failure, an overtemperature condition, or
a power supply failure. The user may display and/or change these configura-
tions through the use of AMI. For more information, please refer to the alarm
configuration section in Appendix B, AMI Configuration Commands, in the
Cabletron ATM Switch Configuration Manual.
and AL2 are in an indeterminate state. During normal operation, they will be
off. During a state of alarm, they will illuminate red. By default, AL1 is the
major alarm indicator for SPANS failure and for link failure. By default, AL2
is the minor alarm indicator for fan failure, an overtemperature condition, or
a power supply failure. The user may display and/or change these configura-
tions through the use of AMI. For more information, please refer to the alarm
configuration section in Appendix B, AMI Configuration Commands, in the
Cabletron ATM Switch Configuration Manual.
SW2
SW1
SW4
PS2
AL1
SW3
PS1
AL2