3
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Troubleshooting the UMAP 2110
Procedure 3-4 Troubleshoot ADSLx Service Problems
Problem indication: No ADSLx service to the affected subscribers (POTS service is ok).
1
If all subscribers connected to the DSLAM are affected, and the SYS LED on the front panel is
not lit, check the power switch on the front panel:
• if the power switch is set to the OFF position, power up the DSLAM by sliding the power switch
to the ON position
• if the power switch is set to the ON position, follow
Procedure 3-1
to troubleshoot the DSLAM
for power up problem
2
If all subscribers are affected, check the SYS LED on the front panel; if it is red, replace the
DSLAM.
3
Check the GBE1/GBE2 LED (if SFP interface is activated); if it is not lit, follow
Procedure 3-3
to troubleshoot the DSLAM for fiber optics problems.
4
If only some subscribers are affected, identify the ports that have problems. Check that the
subscribers are connected to the line interfaces properly.
5
Contact your provider.
Procedure 3-5 Troubleshoot POTS Service Problems
Problem indication: No POTS service to the affected subscribers (ADSLx service is ok).
1
Check the connection of the POTS lines at the POTS connector for the DSLAM.
2
Use a bridging connector to couple the POTS and subscriber lines. If this solves the problem,
replace the DSLAM.
3
Check the condition of the POTS lines and connectors.
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