Allied Telesis AT-SBx81CFC960 - Manual (Page 66)

Chapter 3: AT-SBx81CFC960 Controller Fabric Card
66 Section I: Hardware Overview
SYS Status LEDs
The SYS (System) Status LEDs on the controller fabric card display
general status information about the controller card, power supplies, and
fan module. The LEDs are defined in Table 17 on page 66.
Table 17. SYS (System) Status LEDs
LED State Description
CFC
Solid Green Indicates that the AT-SBx81CFC960 Controller
Fabric Card is operating normally as the active
master controller card.
Flashing
Green Indicates that the controller card is initializing its
management software or synchronizing its
database with the active master controller card.
Solid
Amber Indicates that the controller card is operating
normally as the standby master controller card.
Flashing
Amber Indicates that the controller card is disabled. An
active master controller card might disable a
standby master controller card if the two cards
have incompatible versions of the management
software and are unable to resolve the problem,
possibly because of insufficient free flash memory.
PSU
Solid Green Indicates that the power supplies are operating
properly.
Flashing
Amber Indicates that a power supply is experiencing a
problem. Possible causes are:
 The input AC voltage from a power source is
not within the normal operating range of a
power supply module.
 The output DC voltage from a power supply
module to the line cards is not within the
normal operating range.
 A power supply is experiencing high
temperature.
 A power supply has failed.
Check the status LEDs on the individual power
supply modules to determine which module has a
fault condition.