Network Adapter MTA128ST MTA128NT User Guide

Troubleshooting
MTA128ST/NT 35
SITUATION 4: The autobauding code does not report the number of stop bits. This may become a problem
if the terminal is expecting a certain number of stop bits. The addition of the %S3 command and use of
$SBn , @P3=n , @P4=n , and @P6=n will help work around this limitation. See the description for the %Sn
command.
Debugging/Logging/Troubleshooting Commands
The AT commands in this section can be used in attempting to troubleshoot or debug a current problem.
Some commands may be enhanced or limited by the debugging/logging/troubleshooting S-registers. For
complete descriptions of the commands and S-registers, see the additional documents on this CD.
Debugging/Logging/Troubleshooting Command Summary
AT Command Function
>Dn Embedded Protocol Analyzer (EPA)
*FSn Reset TA
*Ln Fatal Error Information
>LOG Display Logging Buffer Contents
>Sn Logging Variables
>TIME Display Current Timestamp
*V Various State Information
Debugging/Logging/Troubleshooting S-Registers
The S-registers in this section can be used in attempting to troubleshoot, debug, or even correct a current
problem. Some S-registers modify functionality of various features. Some S-registers modify the
functionality of the debugging/logging/troubleshooting commands described in the additional documents on
the system CD.
Debugging/Logging/Troubleshooting S-Register Summary
S-register Function
S47 Pulse-dial Maximum Break Pulse Period
S48 Pulse-dial Maximum Interdigital Pause
S72 EuroISDN Variant
S78 Maximum Allowed V.110 Network Rate (some models only)
S90 Local PPP Capabilities
S91 Remote PPP Capabilities
S92 Channel ID Information Element Octet 3 Settings
S93 Blacklisting
S94 Minimum Buffer Space After Trigger
S95 Logging Buffer Functionality
S96 Decode (EPA) Buffer Functionality
S98 ISDN_MSG Size
S99 Startup Options
S100 Flow Control High Threshold
S101 Flow Control Low Threshold
S102 Data to Save for Decoding