Subscriber Reported Faults - ADC PRL-783 Manual

Fault Isolation
S R
UBSCRIBER EPORTED
At the CO, you can use the VT-100 terminal to log onto the COLU and to initiate a SDT to determine the cause
of any of the following problems.
No
Unsupported
EBS Function
16
F
AULTS
HDSL SYNC
light ON?
FAULT light
OFF?
Yes
Dialtone at
Yes
the RLU
RJ-11 jack?
Tip-Ring
reversed?
Fix wiring.
Use drop test from Craft
Problem fixed?
screen or other check
procedures
Yes
No Successful
installation
RLU drop <200 dc
and <4 db of loss at
Yes
8 kHZ?
No
RLU drop <700
dc and <14db
of loss at 8 kHz
Yes
At craft screen, set
channel transmit to
high level. Save
No
configuration. Problem
fixed?
Yes
Call Technical Support
Successful
installation
Figure 12. Troubleshooting Flowchart
January 6, 2003
No
Go to HDSL
Troubleshooting
No
No
Incorrect
Check wiring of
CO pairs from
COLU to COTS
Correct
No
COLU wiring <100
dc and
4 db loss at 8
kHz
Yes
Yes
Replace COLU.
Problem fixed?
No
Yes
Replace RLU.
Problem fixed?
No
SCP-PRL783-012-03H
Fix wiring.
Problem fixed?
Unsupported
EBS Function
Successful
installation
PG-Plus PRL-783