DEFINITY Enterprise Communications Server Release 7
Maintenance for R7r
555-230-126
Issue 4
June 1999
Alarms, Errors, and Troubleshooting
5-19LA85 Port Tester
5
The port tester is equipped to check 110-type wall field hardware with the three
1-pair patch cords that are color-coded blue (1), orange (2), or green (3).
NOTE:
If the wall field has 66-type blocks, a 66-type block adapter
(Comcode 405546474) is needed.
!
DANGER:
The port tester should not be plugged into an active circuit for an extended
period of time. Resistors in the tester can burn out.
LED indications for the various port types are listed in Table 5-3. Abbreviations
are as follows:
■ R = Red
■ G = Green
■ N = Not lighted
■ N/A = Not applicable
Intermediate closet
wall field
1. Isloate part of the
wiring span (either to
the switch or to the
terminal)
Table 5-3. LED indications for the LA85 Port Tester
Port
W-BL
Bl-W W-O O-W W-G G-W Bl-W W-BL
Analog G
1
NNNNN/AN/A
DCP N G G G G N/A N/A
DCP (2-wire) G N N N N N/A N/A
MFET GGGGGN/AN/A
Continued on next page
Table 5-2. Port fault isolation using the LA85 Port Tester — Continued
To begin the isolation
procedure at the
You may need this
preliminary
information or
equipment And if Then
Continued on next page
