Multi-Tech Systems DT101/xx, DT102/xx Composite Link Troubleshooting Internal DSU

DataTalker Owner’s Manual

Table 7-2. Composite Link Troubleshooting Internal DSU

Problem

Composite link down with CD, CTS, XMT, RD and RCV LEDs on

Flashing RXT LED

Possible Causes

Composite link not configured correctly

High error rate on communication line

DSU clocking configured incorrectly

Solution

1.Verify DSU configuration. See Composite Link settings - Inernal DSU in Table 7-5.

2.Call Tech Support for assistance (see Chapter 8).

1.View composite link statistics (refer to Table 7-10).

2.Perform composite link loopback tests (refer to Table 7-12).

3.Call phone company and verify communication line.

4.Call Tech Support for assistance (see Chapter 8).

1.For DDS line, both DSUs should be set for DDS clocking.

2.Call phone company and verify communication line.

3.Call Tech Support for assistance (see Chapter 8).

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