Table of Contents
Advertisement
Systematically test wiring using a functioning telephone to determine if there is a wiring
problem. If the connection is good, the telephone will return a dial tone. Letters in the figure
shown next indicate the systematic tests to be done. Suppose you're using installation scenario
"B" as shown in the chapter on MDF connections. The logic for other scenarios should be
similar.
Use steps A-D if there is no voice but you can transmit data. Use all of the steps if there is no
voice and you cannot transmit data.
A.
Test A determines if there is a wiring problem between the TELCO (telephone company) and
MDF 1.
B.
Test B determines if there is a wiring problem between MDF 1 and MDF 2.
C.
Test C determines if there is a wiring problem between MDF 2 and your device.
D.
Test D determines if there is a problem with your device's internal splitter.
E.
Test E determines if there is a wiring problem between your device and MDF 3.
F.
Test F determines if there is a building-wiring problem between the subscriber's wall jack and
MDF 3.
A.
Test A determines if there is a wiring problem between the TELCO (telephone company) and
MDF 1.
Figure 169 Testing In-house Wiring
Chapter 33 Troubleshooting
AAM1212 User's Guide
269
Advertisement
Table of Contents
Troubleshooting
