Chapter 3 Hardware Troubleshooting
IES-5106M / IES-5112M / IES-6000M User’s Guide
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C Wiring problem between MDF 2 and the USER Telco-50 connector on the
splitter chassis.
Disconnect the Telco-50 cable from the splitter chassis’ Telco-50 CO connector.
Connect a telephone to the appropriate pins of the Telco-50 cable’s Telco-50
connector.
If there is no dial tone, then the problem is between the splitter chassis Telco-50
CO connector and MDF 2.
Check the Telco-50 cable’s pin assignments (refer to the line card User’s Guide for
the proper pin assignments). Replace the Telco-50 cable if the pin assignments
are okay and there is still no dial tone.
D Problem with a splitter card or the splitter chassis.
Reconnect the Telco-50 cable to the splitter chassis’ Telco-50 CO connector.
Disconnect the Telco-50 cable from the splitter chassis’ Telco-50 USER connector.
Connect a telephone to the appropriate pins of the 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 splitter
chassis and MDF 3.
Reconnect the Telco-50 cable to the splitter 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 splitter 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 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 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.
Table 5 Testing In-house Wiring (continued)
STEP TEST
