User's Manual

6-14 InterReach Unison Accel Installation, Operation, and Reference Manual PN 9000-10
620021-0 Rev. A
6.4.1.2 Troubleshooting Accel Hub LEDs During Installation
• All Accel Hub LINK and RAU LEDs with RAUs connected should indicate
Green/Red, which indicates that the RAU is powered on and communication has
been established.
• The Accel Hub
STATUS LED should be Green.
Table 6-5 Troubleshooting Accel Hub LEDs During Installation
During
Installation LED State Action Impact
1. Accel Hub
power is On
and no
RAUs are
connected
POWER
Off Check AC power; check that the
Hub power-on switch is on;
replace the Hub.
Hub is not powering on.
LINK
LEDs on but didn’t
blink through all
states
Replace the Hub. Microcontroller not reset-
ting properly; flash memory
corrupted.
RAU
LINK
Red Port unusable; replace the Hub
when possible.
Current sensor fault; do not
use the port.
RAU
Off
STATUS
Red, after power-up
blink
STATUS
Red from green
after 90 seconds of
power-up blink,
cable was connected
within 90 seconds
of power up
STATUS
Red
2. Accel Hub
power is On
and RAUs
are con-
nected
LINK
Off Check the Cat-5/6 cable. Power is not getting to the
RAU.
RAU
Off
LINK
Red Test the Cat-5/6 cable. If the cable
tests OK, try another port. If the
second port’s LEDs are Red/Off,
replace the RAU. If the second
RAU doesn’t work; replace the
Accel Hub.
Power levels to RAU are not
correct; communications are
not established.
If the second port works, flag
the first port as unusable;
replace Hub when possible.
RAU
Off
LINK
Green Use AdminManager to determine
the problem.
RAU is off-line.
RAU
Red