Multi-Tech Systems DT102/xx 1. Command Port Troubleshooting, Problem, Possible Causes, Solution

Chapter 7 - Troubleshooting

Table 7-1. Command Port Troubleshooting

Problem	Possible Causes
Command port device not	Communications software not
communication with DataTalker	installed on command port PC

Command port not enabled

Bad cable or cable connection

Solution

1.Install communications software on command port PC (refer to communcations software documentation of installation instructions).

1.Set DIP-Switch #3 to the closed (down) position.

1.Check RS-232 cable connections between command port device and Command port on DataTalker for loose connections or bent pins.

2.Check RS-232 cable connections between command port device and Command port on DataTalker for correct cable wiring (see cabling diagrams in Appendix C).

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

Table 7-2. Composite Link Troubleshooting Internal DSU

Problem	Possible Causes	Solution
Composite link down with CTS,	DSU not communication with	Verify that the DSU LED is on. If
XMT, and RD LED on	communication line	off, ensure that DIP-Switch #2 is in
		the open (up) position.
		Verify that a cable is connected to
		the internal composite DSU/TA
		Digital connector.
		Verify DSU configuration. See
		Composite Link Settings - Internal
		DSU in Table 7-5.
		Call Tech Support for assistance
		(see Chapter 8).
	Faulty communication line	Call phone company and verify
		communication line.
		Call Tech Support for assistance
		(see Chapter 8).

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