Installation manual

Table Of Contents
PROBLEM PROBABLE CAUSE SOLUTION
Extensions (except IP-PT/
SIP Extension) 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.
A telephone with an
A-A1 relay is
connected.
Make sure that a 2-wire cord is used.
Make sure that the A-A1 relay switch of
the telephone is in "OUT" or "OFF"
position.
Extension malfunction Take the extension and plug it into
another extension port that is working. If
the extension does not work, replace the
extension.
Wrong type of PSU Replace the PSU with the appropriate
type.
An unsupported
extension card (SLC16
or MSLC16 card) is
installed.
Replace the optional service card with an
appropriate one (ESLC16 or EMSLC16
card).
You cannot make/receive
outside calls.
An unsupported CO
line card (LCOT4,
LCOT8, or LCOT16
card) is installed.
Replace the optional service card with an
appropriate one (ELCOT16 card).
The PBX does not operate
properly.
Press the Reset Button (refer to
"5.1.4 Using the Reset Button").
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.
IPCMEC/preinstalled
memory card
malfunction
See the error log using the Maintenance
Console (refer to "5.1.5 Troubleshooting
by Error Log"). If the error no. 41 is
displayed, replace the IPCMEC/
preinstalled memory card.
Noise on external paging.
Induced noise on the
wire between the PBX
and the amplifier.
Use a shielded cable as the connection
wire between the PBX and amplifier. A
short shielded cable is recommended.
Distorted external music.
Excessive input level
from external music
source.
Decrease the output level of the external
music source by using the volume control
on the music source.
Document Version 2009-12 Installation Manual 211
5.1.1 Installation