Teledex Y Series - Manual (Page 31)

Y SERIES EXP212, EXP224, AND EXP248 USER GUIDE www.teledex.com 31
3. If the problem is with the fiber optics
cabling, clean or replace as appropriate.
4. Contact your provider.
Procedure 3.4 Troubleshoot ADSLx Service
Problems
Problem indicator: No ADSLx service to the
affected subscribers (POTS service is okay).
1. For EXP212 and EXP224: If all subscribers
connected to the DSLAM are affected, and
the SYS LED on the front panel is not lit,
check the both end of power cords:
• If one of the power cords is not
connected, power up the DSLAM by
plugging the power cord to the power
socket/power outlet.
• If the power cords are both connected,
follow Procedure 3.1 to troubleshoot
the DSLAM for power up problem.
1. For EXP248: 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. For EXP212 and EXP224: If only some
subscribers are affected, identify the
ports that have problems. Check that the
subscribers are connected to the line
interfaces properly.
3. For EXP248: 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. For EXP248: 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 indicator: 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.
Procedure 3.6 Subscriber Service Problems
Problem indicator: No POTS and ADSLx service
to the affected subscribers.
1. Check the connection of the subscriber
lines and POTS lines at the subscriber
line connector for DSLAM for subscribers
that do not have POTS and ADSLx
service.
If this step results in POTS service to the
affected subscribers but there is still no
ADSLx service to them, follow Procedure
3.4 to troubleshoot ADSLx service
problems.
If this step results in ADSL service to the
affected subscribers but there is still no
POTS service to them, follow Procedure
3.5 to troubleshoot POTS service
problems.
2. Use a bridging connector to couple
the POTS and subscriber lines. If this
results in POTS service to the affected
subscribers, contact your provider.
3. Check the condition of the subscriber
lines and connectors.