Multi-Tech MultiModem ISIHI-2S, Manual

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112 MultiModemISI Hybrid Series, ISIHI-2S
Chapter 6—Troubleshooting Guide
Troubleshooting
This chapter covers common problems you may have with your ISIHI-2S and how to
solve them. Your ISIHI-2S was thoroughly tested at the factory before shipping. If you are
unable to successfully connect, or if you experience data loss or garbled characters,
during connecting, it is possible that the modem or terminal adapter is defective.
However, it is more likely that the source of your problem lies elsewhere. Always make
sure all hardware is properly connected. Then review the common problems listed in this
chapter for recommendations on what to change or do. Problems you may encounter
include the following:
• The TA/modem does not respond to commands.
• The TA/modem dials but cannot make a connection.
• You can place data calls but not voice calls, or vice versa.
• You cannot place two simultaneous data calls.
• The TA/modem disconnects while online.
• The TA/modem cannot connect when answering.
• File transfer appears slower than it should be.
• Data is being lost
• There are garbage characters on the monitor
If you experience problems, please check the following possibilities before calling Tech
Support (see Chapter 6).