User's Manual
4-4 InterReach Unison Accel Installation, Operation, and Reference Manual PN 9000-10
620021-0 Rev. A
4.2 RAU 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 8 for troubleshooting using the LEDs.
Status LEDs
The RAU status LEDs can be in one of the states shown in Table 4-2. These LEDs
can be:
off
steady green
steady red
There is no off state when the unit’s power is on.
Table 4-2 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 Accel 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 Accel Hub is
normal
Red
Red
• RAU is reporting a fault or lockout condition, and it is not able to communicate with the
Accel Hub
LINK
ALARM
LINK
ALARM
LINK
ALARM
LINK
ALARM