PairGain 150-1141-05, Manual, Page: 47 / 78

150-388-105-05, Revision 05 Provisioning
HLU-388 List 5 March 25, 2000 39
View Troubleshooting Screen
The Troubleshooting screen graphically analyzes the circuit and identifies problem areas.
Press at the Maintenance Terminal Main Menu to access the Troubleshooting screen. The Troubleshooting
screen ( Figure 20 ) appears showing the HLU, the HRU, and any doublers that are in the circuit (up to four).
Figure 20. Troubleshooting Screen for a Doubler Application
Figure 21 shows an example of a circuit that has identifiable problems. Symbols on the troubleshooting diagram
indicate the location of the circuit problems. The legend describes the type of problem.
Figure 21. Troubleshooting Screen Describing Circuit Problem
I
TIME: 00:29:56 TROUBLESHOOTING
DATE: 02/18/00 CIRCUIT ID#
___ ___ ___ ___ ___ ___
| | 1 | | 1 | | 1 | | 1 | | 1 | |
>>>>| |=====| |=====| |=====| |=====| |=====| |>>>>
<<<<| |=====| |=====| |=====| |=====| |=====| |<<<<
|___| 2 |___| 2 |___| 2 |___| 2 |___| 2 |___|
NETWORK HLU HDU1 HDU2 HDU3 HDU4 HRU CUSTOMER
SYSTEM OPERATIONAL
AUTOUPDATE OFF (E)xit (A)uto(U)pdate (H)elp (L)oopbacks
HDSL Line 1
HDSL Line 2
Signal direction
Doubler 4
TIME: 00:11:28 TROUBLESHOOTING
DATE: 02/18/00 CIRCUIT ID#:
___ ___ ___ ___ ___ ___
| | 1 | | 1 | | 1 | | 1 | | 1 | |
LOS>| |=====| |M=R==| |=====| |=====| |=====| |>AIS
<<<<| |=====| |M=R==| |=====| |=====| |=====| |<<<<
|___| 2 |___| 2 |___| 2 |___| 2 |___| 2 |___|
NETWORK HLU HDU1 HDU2 HDU3 HDU4 HRU CUSTOMER
SYMBOLS DESCRIPTIONS TROUBLESHOOTING
(M) Low Margin Alarm Poor HDSL signal, long loop, interference
R Channel Reversal Circuit is ok, loops are reversed
LOS DS1 Loss of Signal T1 is not detected at input to unit
AIS Alarm Indication Signal Far end LOS, HDSL LOSW, loopbacks or MAL
AUTOUPDATE OFF (E)xit (A)uto(U)pdate (H)elp (L)oopbacks