ZyXEL Communications IES-1000 User Manual page 66

STEP
C Disconnect the telephone wire from CO. Connect a telephone to the telephone wire.
If there is no dial tone, then the problem is between your device and MDF 2.
Check the telephone wire's pin assignments (refer to the appendices for the proper pin assignments).
Replace the telephone wire if the pin assignments are OK and there is still no dial tone.
D Reconnect the telephone wire to CO.
Disconnect the telephone wire from USER. Connect a telephone to USER (refer to the appendices for
the proper pin assignments).
If there is no dial tone, your device's internal splitter may be faulty, contact your vendor.
E Reconnect the telephone wire to USER.
Connect a telephone to a lower port of MDF 3. If there is no dial tone, then the problem is between your
device and MDF 3. Check the pin assignments of the telephone wire's connector that connects to USER.
Replace the telephone wire connecting your device to MDF 3.
If there is no dial tone, then MDF 3 may be faulty. Contact the telephone company if that is the case.
F 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.
Hardware Troubleshooting
Table 8-7 Testing In-house Wiring
TEST
IES-1000 User's Guide
8-5