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Chapter 7 - Troubleshooting
Table 7-1. Command Port Troubleshooting
Problem
Command port device not
communication with DataTalker
Possible Causes
Communications software not
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
Composite link down with CTS,
XMT, and RD LED on
Possible Causes
DSU not communication with
communication line
Faulty communication line
Solution
Verify that the DSU LED is on. If
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).
Call phone company and verify
communication line.
Call Tech Support for assistance
(see Chapter 8).