User guide

46 Multi-Tech Systems, Inc. MT9234ZBA-Series User Guide
This appendix describes how to set up routers. The router's console port, for example on a Cisco router, is an
asynchronous serial port configured as data communications equipment (DCE).
Configuring the Modem for your Country or Region
Configure the modem defaults to match the requirements of the country/region in which it will be used. For
information on how to do this, see “Error! Reference source not found.“ in Chapter 2.
Configuring for Callback Security in Direct Connect Mode
Callback security requires a caller to give a correct password before sending data to the system. If you do not
plan to use this feature, skip to Step 3.
Turning Direct Connect Callback Security On and Off
Callback security must be turned on to enter many callback security commands.
To turn on callback security:
1. Open a terminal program such as HyperTerminal.
2. Type the command AT#Sxxxxxxxx,
where xxxxxxxx is your password (1 to 8 characters long; case-sensitive).
3. Press Enter.
The modem responds with OK if the setup password is correct and ERROR if it is wrong. The default
password is MTSMODEM. If you wish to change the password, then type the command AT#S=xxxxxxxx,
where xxxxxxxx is the new password (1 to 8 characters long; case-sensitive), and press Enter.
4. Type one of the following commands:
● To turn on remote callback security only, type AT#CBS2 and press Enter.
● To turn on both local and remote callback security, type AT#CBS1 and press Enter. When local security is
turned on, you must enter the setup password before you can enter any AT command from a local
terminal except the AT, ATIn, and AT#Sxxxxxxxx commands.
5. To store the commands to nonvolatile memory, type AT&W0.
Setting the Parity of the Callback Security Messages
The modem’s password prompt and messages parity must match the parity of the computer to which the
modem is connected.
1. The default parity setting for your modem is no parity (AT#CBP0). To change the modem’s prompt messages
to use even parity, type AT#CBP2 and press Enter. For odd parity, type AT#CBP1 and press Enter.
2. To store the new parity value, type AT&W and press Enter.