Step 4: Install And Configure Your Software - Multitech MultiModemDSVD User Manual

MultiModemDSVD User Guide

Step 4: Install and Configure Your Software

You must have communication software installed in your computer to use your
Multi-Tech modem. If you wish to use communication software that is already in-
stalled, you should reconfigure it for your new modem; otherwise, install the data
and fax communication software provided with the modem.
1. Turn on your computer and run your communication software.
2. Find the dialog box or menu that lets you specify your modem. (In Windows
3. Choose your modem from the software's modem list. If it isn't listed, choose a
4. Change the modem initialization string, if necessary. The factory default config-
5. Select the port the modem is connected to (normally COM1 or COM2).
6. Select your serial port speed. This can be labeled "maximum speed," "DTE
10
Terminal select Settings | Modem Commands; in HyperTerminal select File |
Properties | Phone Number; and in Trio select View | Datacomm | Communi-
cations | Setup | Modem | Select from List.
generic modem and modify the settings as necessary.
uration works well for most purposes. To load the factory default configuration,
use AT&F. To load a custom configuration that was saved using the &W com-
mand, use ATZ. Note that the Z command must be in a command string by it-
self. For a Macintosh, the initialization string should include the &D0 command.
If you do not want the modem to always answer the phone, add S0=0 to the
string. To use Caller ID with the modem, add S0=2 to the string (Caller ID infor-
mation is sent between the first and second rings, so the phone must ring at least
twice befor the modem picks up the line). Depending on the software, you
might have to end the string with a carriage return character (^M).
Note: To change the modem's default configuration, type new commands in the
software's terminal window, adding the &W command to store them in the mo-
dem's nonvolatile memory. For instance, to create a default configuration for a
Macintosh computer that turns off autoanswer, type AT&F&D0S0=0&W. The
new configuration loads automatically whenever the modem is turned on or re-
ceives the ATZ command.
bps," or "baud rate." Ideally, if you use data compression, you should set your
serial port baud rate to four times the modem's maximum transmission speed or
faster; however, few files can be compressed enough to require speeds that high,
and not all serial ports can handle speeds that high. Set the serial port baud rate
to 115,200 bps if your computer has a high speed serial port with a 16550AFN
UART or equivalent and Windows 9x or NT 4.0, or set it to 57,600 bps if it has
Windows 3.1x. If you have an older computer with a 14550 UART, set it to
19,200 bps. Older Macintosh computers can use a serial port baud rate of 57,600
bps; newer ones can use a serial port baud rate of 115,200 bps or 230,400 bps.
To see what UART your serial port uses if you have Windows 3.1x, in Program
Manager select File | Run, type MSD, and press ENTER. Select COM Ports to
see the UART type. If you have Windows 95, select Start | Settings | Control
Panel, and double-click on the Modems icon. In the Modems Properties dialog
box, click the Diagnostics tab, click the port the modem is connected to, and
click More Info to see the UART type. Note that both programs will identify a