Multi Tech Equipment MTA128ST manual Debugging/Logging/Troubleshooting Commands

Troubleshooting

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

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

None of the LEDs light when the MTA128ST/NTis on

When you turn on the MTA128ST/NT, the LED indicators on the front panel should flash briefly as the TA runs a self-test. If the LEDs remain off, the TA probably is not receiving power.

•Make sure the MTA128ST/NT’s power switch is on, especially if you normally turn on the TA by turning on a power strip.

•If the power supply is plugged into a power strip, make sure the power strip is plugged in and its power switch is on.

•Make sure the power supply module is firmly connected to the MTA128ST/NT and to the wall outlet or power strip.

•If the power strip is on and the MTA1 28ST/NT is switched on, try moving the TA’s power supply to another outlet on the power strip.

•Test that the outlet is live by plugging a lamp into it.

33