HDSL2 for General Distribution Installation and Maintenance Practice Control Port Operation
61223HDSL2L2-5B 41
Troubleshooting Guidance
Selecting the option number associated with the Troubleshooting Guidance selection on the
Troubleshooting screen causes an H2TU-C module to read the operational status of the circuit
and return troubleshooting guidance to the probable cause of the trouble, as shown in Figure
42.
Figure 42. Troubleshooting Guidance
NOTE
The display on the Troubleshooting screens represent a single cir-
cuit problem, based upon a hierarchy within the software. Other
problems may exist.
Circuit ID:HNTSVLALHDSL2 03/01/05 09:29:45
Press ESC to return to previous menu
DSX-1 Loss of Signal(LOS) / Loss of Frame(LOF) (Red Alarm)
- Patch test set REC jack into H2TUC BRG TRANS jack to verify integrity of
signal to the H2TUC from the network (verify test set in Bridge mode).
- If signal to H2TUC is missing, insert test set at DSX panel IN Jack connecting
toward H2TUC (to verify wiring between DSX and H2TUC shelf). Check H2TUC to
verify DSX-1 LOS alarm is cleared. This verifies TX(out) and RX(in) pairs are
not swapped.
- If signal from DSX OK, verify cross-connect wiring at DSX panel is turned over
(OUT to IN) and (IN to OUT).
-If DSX wiring OK, connect test set REC to the DSX MON, network side equipment,
to verify signal from network (verify test set to MON). If no signal,
troubleshoot office problems.
