ZyXEL Communications IES-5000 Series User Manual page 70

Chapter 4 Hardware Troubleshooting
Table 7 Testing Wiring
STEP TEST
D Problem with a splitter card or the splitter chassis.
Reconnect the Telco-50 cable to the IES-5000 splitter chassis' Telco-50 CO connector.
Disconnect the Telco-50 cable from the IES-5000 splitter chassis' Telco-50 USER connector.
Connect a telephone to the appropriate pins of the IES-5000 splitter chassis' Telco-50 USER
connector (refer to the line card User's Guide for the proper pin assignments).
If there is no dial tone, make sure that the splitter card is properly installed. Try a different
splitter card. If using a different splitter card solves the problem, replace the first splitter card.
If using a different splitter card does not solve the problem, the splitter chassis may be faulty,
contact your vendor.
E Wiring problem between the USER Telco-50 connector on the IES-5000 splitter chassis
and MDF 3.
Reconnect the Telco-50 cable to the chassis' Telco-50 USER connector.
Connect a telephone to a lower port of MDF 3. If there is no dial tone, then the problem is
between the chassis Telco-50 USER connector and MDF 3. Replace the Telco-50 cable
connecting the USER port to MDF 3.
If the problem remains, check the pin assignments of the USER Telco-50 connector. If the
problem remains, then the IES-5000 or MDF 3 is faulty. Repeat the test in step A using MDF
3 to determine if MDF 3 has problems. Contact the telephone company if that is the case.
If not, contact your IES-5000 vendor outlining the problem and the steps you took to solve it.
F Building-wiring problem between the subscriber's wall jack and MDF 3.
Disconnect the DSL modem from the wall jack and connect the telephone to the wall jack. If
there is no dial tone, then there is a problem with the building wiring between the DSL
subscriber's home and the MDF. Contact your telephone company for troubleshooting.
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IES-5000 Series User's Guide