DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Alarms, Errors, and Troubleshooting
5-18LA85 Port Tester
5
LA85 Port Tester
The LA85 port tester (Comcode 105138424) is recommended for troubleshooting
all DEFINITY station troubles involving analog, DCP, MFET, MFAT, or BRI
configuration. The port tester detects the presence of voltage from equipment
ports and is degined to indicate the status of the wiring at the:
■ Wall field in the equipment room
■ Wall field in any intermediate closet
■ Wall jack at the station
■ Terminal and terminal station cord
Use the information in Table 5-2
to isolate problems with the port tester.
Table 5-2. Port fault isolation using the LA85 Port Tester
To begin the isolation
procedure at the
You may need this
preliminary
information or
equipment And if Then
Wall field in
equipment room
Use display errors
command
Off-board errors
indicated
Verify wiring from switch to
equipment room wall field.
Station (terminating
end)
1. Unplug station cord
from terminal and plug
it into the “BRI” or
“Other” jack on the
tester, as applicable.
2. If the readings are OK,
the terminal, handset,
or handset cord may
be faulty.
Station wall jack 1. Wrong or
incorrect
reading from
the terminal end
of the station
cord (from Step
1 above)
2. D8W line cord
(Comcode
103786761)
used at station
wall jack
1. If the reading from the
jack is OK, then the
terminal cord may be
faulty.
