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 1051384 24) is recommended for troub leshooting

all DEFINITY station troubles involving analog, DCP, MFET, MFAT, or BRI

configuration. The port tester d etects the presence of v oltage from equipment

ports and is deg ined to indicate t he 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 prob lems 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. Unp lug station cord
from terminal and plug
it into the “BRI” or
“Other” jack on the
tester, as applicable.
2. If the reading s 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.