Allied Telesis AT-SBx31CFC960 - Manual (Page 69)

SwitchBlade x3106 Chassis Switch and AT-SBx31CFC960 Card Installation Guide
69
SYS Status LEDs
The SYS (System) Status LEDs on the AT-SBx31CFC960 Controller
Fabric Card display general status information about the card, power
supplies, and fan module. The LEDs are defined in Table 18.
Table 18. SYS (System) Status LEDs
LED State Description
M/S
Solid Green Indicates that the AT-SBx31CFC960 Controller
Fabric Card is the active master controller card in
the chassis.
Solid Amber Indicates that the controller card is the inactive
master card or was disabled with the
management software.
Flashing
Amber Indicates that the controller card is initializing its
management software or synchronizing its
database with the active master card.
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.
FAN
Solid Green Indicates that the fan module is operating
properly.
Flashing
Amber Indicates that the fan module has a problem. A
fan is operating below the normal operating
range or has stopped.