PROBLEM
PROBABLE CAUSE
SOLUTION
Extensions do not operate.
•
Extension card
malfunction
•
Replace the corresponding card.
•
Poor connection
between the PBX and
the extension
•
Take the extension and plug it into the same
extension port using a short telephone cord.
If the extension works, then the connection
between the PBX and the extension must
be repaired.
•
Extension malfunction
•
Take the extension and plug it into another
extension port that is working. If the
extension does not work, replace the
extension. If the extension works, replace
the extension card.
The PBX does not operate
properly.
•
Restart the PBX (refer to "6.1.4 Restarting
the PBX").
•
Turn off the power switch, and then turn it
back on.
•
Turn off the power switch, and then unplug
the PBX. After 5 minutes, plug the PBX
back in, and turn the power switch back on.
The STATUS indicator on
the front of the cabinet
turns on red.
•
A major/minor system
error occurs in the
PBX.
Error Log files can be accessed or exported
on the Web-MC. For more information, refer to
4.4.2 Maintenance—[3-2] Utility—System Log
in Programming Item List.
•
Should a Main CPU failure be detected or a
failure notice be received from any device, a
description of the failure will be recorded in
the log and appropriate measures, including
but not limited to system reset, will be
initiated.
The LINK indicator of the
mother board does not turn
on.
•
Mother board
malfunction
•
Replace the mother board (be sure to turn
off the PBX when replacing).
•
Poor connection.
•
Make sure that an 8-pin twisted pair cable is
used for connection.
•
Make sure that none of the CAT 5/CAT 5e
cables in use are over 100 m (328 ft) in
length.
•
Make sure that a straight cable is used for
connection to a switching hub.
•
Network malfunction
•
Make sure that all network devices in use
are switched on.
Status LED is set to Power
ON → Amber (5s) →
continues to flash red (240
times/minute)
Fan failure
Contact Service Center
6.1.1 Installation
Getting Started
107
