Motorola 326X V.34 사용자 설명서

6-2 Troubleshooting Guide

Most problems encountered when installing and using the modem can be corrected if 
you carefully read and follow the instructions in the documentation. Use the 
Troubleshooting section of this chapter to analyze and correct problems before 
calling Motorola’s Customer Support Center.

The section after the troubleshooting guide tells you how to initiate and terminate 
tests. Chapter 4 of the326X Series Modem Reference Guide contains detailed 
information on these tests.

• The modem is set to factory default configurations.

• The modem has been installed with all initial cabling complete.

This section discusses:

• Dial operation problems

• Synchronous data compression (SDC) mode problems

• Leased line operation problems

First, confirm that your data communications application is set up correctly:

• Confirm that your communications software is configured for the correct serial 

port to which your modem is connected (i.e., COMM1, COMM2, etc.)

• Confirm the COM port is configured for the data rate, word length, and parity 

your configuration requires

• Confirm that the cable connecting the modem to the host equipment is a 

DCE-to-DTE straight-through cable

• Confirm the electrical interface of your modem (V.35 or RS-232) and ensure 

that you have the correct cable installed

Use the table that follows to match your problem with a diagnosis and solution.