ZyXEL Communications U-336SA User Manual
Page 13
xiii
Connect Strings for Error Corrected Connections 127
10 Diagnostics & Troubleshooting 128
Diagnostics 128
Power-On Self Test 128
Resetting The Modem 129
Loopback Tests 130
Indicator Lights 132
Line Condition Status Display 132
Trouble Shooting 135
AT Command Set Problems 135
Command Echo Problems 136
Answer Problems 137
Dialing Problems 138
Data Transfer Problems 138
Connection Problems 139
11 Upgrading Your Modem 140
Upgrading by Flash EPROM 140
Kernel Recovery Mode 141
12 Connector Pinouts 142
Phone Jack Pinouts 142
PC Serial Port Pinouts 142
Macintosh Serial Port Pinouts 144
13 Index 146
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