User's Manual

5-4 InterReach Unison Installation, Operation, and Reference Manual PN 8700-10
620003-0 Rev. B
5.2 LED Indicators
Upon power up, the RAU goes through a two-second test to check the LED lamps.
During this time, the LEDs blink green/green red/red, letting you visually verify that
the LED lamps and the firmware are functioning properly.
NOTE: Refer to Section 9 for troubleshooting using the LEDs.
Status LEDs
The RAU status LEDs can be in one of the states shown in Table 5-2. These LEDs
can be:
off
steady green
steady red
There is no off state when the unit’s power is on.
Table 5-2 Remote Access Unit LED States
LED State Indicates
Off
Off
• RAU is not receiving DC power
Green
Green
• RAU is powered and is not indicating a fault condition. Communication with Expansion
Hub is normal; but the system test may need to be performed or a warning condition could
exist (use AdminManager to determine)
Green
Red
• RAU is indicating a fault or lockout condition, but communication with the Expansion Hub
is normal
Red
Red
• RAU is reporting a fault or lockout condition, and it is not able to communicate with the
Expansion Hub
LINK
ALARM
LINK
ALARM
LINK
ALARM
LINK
ALARM