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Remote Configuration: Multi-Tech MT5634ZBA User's Guide

Introduction • Basic Procedure • Setup

Introduction

Remote configuration is a network management tool that allows you to configure or troubleshoot MT5634ZBA modems anywhere in your network from one location. With password-protected remote configuration, you can issue AT commands to a remote MT5634ZBA modem as if you were on-site.

Basic Procedure

The following steps are valid regardless of whether the connection is established by the local or the remote MT5634ZBA modem.

  1. Establish a data connection with a remote MT5634ZBA modem.
  2. Send three remote configuration escape characters followed by AT and the setup password, and 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. Type 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>.
  5. Type ATO<CR> to exit remote configuration. You can now 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). Because 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 communication 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 then 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 then 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 type more AT commands or exit the data communication program. The next time you remotely configure the modem, you must use the new setup password.
NOTE: 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 you set it up.

Changing the Remote Escape Character

To increase security, you can change a remote modem's remote configuration escape character. The remote configuration escape character is stored in register S9. The factory default is 37, which is the ASCII code for the percent character (%). Setting S9 to 0 (zero) disables remote configuration entirely—but if you do this remotely, you won't be able to change it back remotely!

  1. Establish a remote configuration link with the remote modem as described in Basic Procedure.
  2. Type ATS9=n, where n is the ASCII code for the new remote configuration escape character, and then press ENTER.
  3. Save the new value by typing AT&W and then pressing ENTER.
  4. Type ATO and press ENTER to exit remote configuration.

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