Chapter 55 Troubleshooting

Table 103 DSL Data Transmission Troubleshooting (continued)

STEPS

CORRECTIVE ACTION

 

 

4If you cannot ping, connect a DSL modem to a DSL port (that is known to work).

If the DSL modem or router works with a different DSL port, there may be a problem with the original port. Contact the distributor.

5If using a different port does not work, try a different DSL modem or router with the original port.

55.6There Is No Voice on a DSL Connection

The IES-612-51A has internal splitters and CO side Telco-50 connectors that allow the telephone wiring used for DSL connections to also simultaneously carry normal voice conversations.

Table 104 DSL Voice Troubleshooting

STEP

CORRECTIVE ACTION

1

Make sure the subscriber has a splitter properly installed.

 

 

2

Check the DSL line pin assignments shown in Section 56.5 on page 425.

 

 

3

Check the telephone wire connections between the subscriber and the MDF(s).

 

 

4

Check the telephone wire and connections between the MDF(s) and USER port(s).

 

 

5

Check the telephone wire and connections between the MDF(s) and the CO

 

connector(s). Check the connection from the MDF(s) to the telephone company or the

 

PBX.

 

 

6

Check the telephone wire mapping on the MDF(s).

 

 

7

Make sure the in-house wiring works and is connected properly.

 

 

8

Repeat the steps above using a different DSL port.

 

 

55.7 Testing Wiring

Use the following tests if there is no voice.

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.

Table 105

Wiring Tests

TEST

DESCRIPTION

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.

 

 

 

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IES-612-51A User’s Guide