Table 7-6 System Troubleshooting Chart; System Issues - Inter-Tel AXXESS Manual

A. SYSTEM ISSUES
Table 7-6. System Troubleshooting Chart
Symptom
Repeated occurrence of all
calls in progress dropping
All phones in the system are
inoperative; no LED indication
when a trunk or call button is
pressed; +24V measurement
is not present
Database restore aborts
before finishing
DISA inoperative

System Issues

®
INTER-TEL
Possible Cause
AC line is not isolated and
dedicated
Defective power supply
Equipment chassis located
near a strong magnetic field
or other potential source of
interference (copy machines,
power transformer, etc.)
IC-CO/CO-CO Disconnect
timer(s) need(s) adjustment
Defective CPC or CPU Card
NOTE:
The central office must provide a minimum of 18mA loop current
Open or loose connection in
the cable between the power
supply and the chassis back-
plane, or a defective cable
Defective power supply or
connector
Defective keyset card
Defective chassis backplane
PC's power saver feature
shuts down the PC and sev-
ers the communications link
User error
Telephone not compatible
Programming error
Defective trunk card
Defective CPC or CPU Card
®
AXXESS MANUAL VERSION 11.0 – May 2008
Corrective Action
Have isolated, dedicated line installed. See
10 in INSTALLATION for details.
See INSTALLATION, page 3-83
the power supply electrical test. Replace the power
supply if faulty.
Relocate the equipment chassis a minimum of 20
feet (6 meters) from any equipment that is a poten-
tial source of interference.
See dialed digits field in SMDR,
TURES. Set timer(s) to a higher value. See PRO-
GRAMMING, page 6-329.
See page 7-3 for LED and system voltage informa-
tion. Replace the card if faulty.
Turn off the AC power. Check to see that the back-
plane-to-power supply interface cable is properly
connected. Repair or replace the power supply, the
cable, and/or the backplane if the connection is
faulty.
Use a voltmeter to check the +24VDC voltage on
the chassis backplane or power supply. If the volt
age is not +24VDC ±5%, replace the power sup ply
and/or the cable.
Remove all keyset cards from the chassis. Replace
the cards one at a time and check the system volt-
ages on the chassis backplane or power supply
(see page 7-3), until the defective card is isolated.
Replace the faulty card.
Check the system voltages on the chassis back-
plane (see page 7-3). Replace the chassis assem-
bly or the chassis backplane if necessary.
Disable the PC's power saver feature.
See FEATURES, page 5-118, for correct proce-
dures.
User must dial in from a DTMF telephone.
Ensure that the trunk group is identified correctly as
a day or night DISA trunk group. See PROGRAM-
MING, page 6-228.
Replace the associated card.
See page 7-3 for LED and system voltage informa-
tion. Replace the card if faulty.
Troubleshooting
page 3-
or 3-92, to perform
page 5-311 in FEA-
Page 7-27
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