Appendix F: Installing A Modem In Linux; Introduction; Standard Linux Serial Port Definitions; Installation - Multitech MultiModem MT5600ZDX User Manual

Appendix F: Installing a Modem in Linux

Introduction

This appendix explains how to install a modem on a PC operating under the RedHat
Linux 6.2 operating system. Other versions of RedHat and other Linux operating
systems should be similar. Briefly, in Linux, you do not need drivers for most
standard external modems and most internal ISA bus modems. Programs in Linux
commonly call upon the port, rather than the modem.

Standard Linux Serial Port Definitions

Port
Com 1
Com 2
Com 3
Com 4

Installation

Connect the external modem to an available serial port.

Setup

This section describes how to make sure Linux can talk to the modem and be able to
dial up to the Internet.

Using the terminal program Minicom to verify operation

1. At the command prompt, type minicom –s and press E
2. Select Serial port setup and press E
3. From Serial port setup, use the A key to access Serial Device, and then press
4. Press E
5. You are now in the Minicom terminal. Type AT and press E
6. To leave Minicom, press C
7. On the help menu, press X to exit.
Linux Port
ttyS0
ttyS1
ttyS2
ttyS3
E .
NTER
.
SC
should display OK to verify the operation. Alternately, dial a phone number to
verify line operation
F Installing a Modem in a Linux PC
.
NTER
+ A, and then press Z.
TRL
.
NTER
. The screen
NTER
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