8900NET Instruction Manual
17
Power Up
Monitor Module Indicator LEDs
The possible LED status and conditions indicated are shown in
Table 1. Indicator LEDs and Conditions Indicated
LED
LED State
Condition
POWER
(green)
Off
Power is off or on-board regulator has failed
On continuously
Module is powered
TEMP
(red)
Off
Frame temperature is within specified parameters
On continuously
Over-temperature condition detected in frame
PS2
(red)
Off
Normal operation or alarm disabled
On continuously
Power supply 2 is present and reporting an alarm condition
PS1
(red)
Off
Normal operation or alarm disabled
On continuously
Power supply 1 is present and reporting an alarm condition
FAN
(red)
Off
Normal operation or alarm disabled
On continuously
One or more fans in the front cover assembly is not rotating
MOD
(red)
Off
Normal operation or alarm disabled
On continuously
Module health bus is not disabled and one or more modules is reporting an internal
fault
Long continuous flashing
One or more modules is reporting a configuration error
FB
(red)
Off
Network module is communicating with modules on the frame bus
On
Internal frame bus communication failure
INHIB
(yellow)
Off
Normal operation or alarm disabled
On continuously
A non-compliant module in the frame has disabled the module health bus
FAULT
(red)
Off Normal
operation
On continuously
One of the on-board fault LEDs is illuminated or flashing
Flashing
Indicates the MOD (module health LED) is flashing
COMM
(yellow)
On
Indicates module is polling the devices on the internal frame communication bus
ETHER
(yellow)
On
Indicates active communication detected on the Ethernet bus
REM OVR
(yellow)
Off
All fault reporting is controlled by onboard configuration switches
On
Software overrides onboard configuration switches
