Figure 9-1 Testing In-House Wiring; Table 9-6 Testing In-House Wiring - ZyXEL Communications IES-2500 User Manual

IES-2500 User's Guide
STEP
A Connect a standard telephone to MDF 1. If there is no dial tone, then a problem with the wire or wire
connections between MDF 1 and the CO exists. Contact your telephone company for troubleshooting.
B Connect a telephone to the upper port of MDF 2. If there is no dial tone, then the problem is between
MDF 1 and MDF 2. Check the telephone wire and connections between MDFs 1 and 2.
C 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 appendices for the proper pin assignments).
Replace the Telco-50 cable if the pin assignments are OK and there is still no dial tone.
9-4

Figure 9-1 Testing In-house Wiring

Table 9-6 Testing In-house Wiring

TEST
Hardware Troubleshooting