Introduction, Remote configuration procedure, Setup – Multi-Tech Systems MT4X56USB User Manual

Page 54: Introduction remote configuration procedure

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MultiModemUSB User Guide

MT4X56USB

54

Introduction

Remote configuration is a network management tool that enables you to configure modems
anywhere in your network from one location. With password-protected remote configuration, you can
issue AT commands to a remote MT4x56USB for maintenance or troubleshooting as if you were on-
site.

Remote Configuration Procedure

The following steps are valid regardless of whether the connection is established by the local or the
remote Multi-Tech modem.

1.

Establish a data connection with a remote MT4X56USB modem.

2.

Send three remote configuration escape characters followed by AT and the setup password, then
press ENTER. Example: %%%ATMTSMODEM<CR>. You have four tries to enter the correct
password before being disconnected. If the password is correct, the remote modem responds
with:

OK

3.

You can now send AT commands to configure the remote modem.

4.

When you have finished configuring the remote modem, save the new configuration by typing
AT&W0<CR>, then type ATO<CR> to exit remote configuration. You can then break the
connection in the normal way.

CAUTION: If you hang up while you are in remote configuration mode, it may lock up the
remote modem.

Setup

Multi-Tech modems are shipped with a default setup password (MTSMODEM). Anyone who has an
owner’s manual knows the default setup password. For security, you should change the password
and possibly also the remote configuration escape character.

Changing the Setup Password

1.

Open a data communications program such as HyperTerminal.

2.

In the terminal window, type AT#SMTSMODEM (or AT#Syyyyyy if you have replaced the
MTSMODEM password with yyyyyy) and press ENTER. The modem responds with OK if the
setup password is correct, and ERROR if it is wrong.

3.

To change the password, type AT#S=yyyyyy, where yyyyyy stands for the password, and press
ENTER. The password can include any keyboard character, and must be one to eight characters
long. The modem responds with OK.

4.

The new password is saved automatically. You can now either enter more AT commands or exit
the data communications program. The next time you remotely configure the modem you must
use the new setup password.

CAUTION: You can only change the setup password locally; you cannot do it remotely. Also,
passwords are case sensitive. The next time you enter the password, it must be in the same
case as when you set it up.

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