Multitech MT5634ZBA-V-V92 Benutzerhandbuch

                

Appendix E – Installing a Modem under Linux 

Multi-Tech Systems, Inc. MT5634ZBA-Series User Guide (S000286G)                

 

This appendix explains how to install a modem on a computer operating under the Red Hat Linux 6.2 operating system. 
Other versions of Red Hat 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.  

PC port 

Linux port 

Com1 ttyS0 
Com2 ttyS1 
Com3 ttyS2 
Com4 ttyS3 

Connect the external modem to an available serial port.  

This section describes how to make sure Linux can talk to the modem and be able to dial up the Internet. Linux can use 
different programs and desktops depending on who made the Linux operating system and what version it is. The 
following procedures use the most commonly installed components of Red Hat 6.2. More information can be found in 
your Linux OS owner’s manual.  

At the command prompt, type minicom –s and press E

NTER

. 

Select Serial port setup and press E

NTER

.  

From Serial port setup, use the A key to access Serial Device, and then press E

NTER

.   

Press E

SC

. 

You are now in the Minicom terminal. Type AT and press E

NTER

. The screen should display OK to verify the 

operation. Alternately, dial a phone number to verify line operation 

To leave Minicom, press C

TRL 

+ A, and then press Z.  

On the help menu, press X to exit. 

Linux allows different graphic user interfaces (GUI). In the following steps, we’ll use the Gnome Desktop GUI and 
assume that your Internet Service Provider (ISP) assigns the Domain Name Service (DNS) and Internet Protocol 
(IP) addresses.  

On the Task Bar at the bottom of the screen, select the Gnome Footprint. 
Select Internet from the menu. 
Select Dialup Configuration Tool. 
Select Add, and then click Next. 
Enter the connection name and phone number, and then click Next.  
Enter your user name and password, and then click Next. 
Select Normal ISP if your ISP is not listed, and then click Next. 
Click Finish. 

On the Task Bar at the bottom of the screen, select the Gnome Footprint. 
Select Internet from the menu. 
Select RH PPP Dialer. 
Select the connection name you entered in step 5 of the previous section. 
Click OK. 

To use the system for answering calls, Linux requires other programs to be installed, such as Mgetty, 
Mgetty+Sendfax, and others, depending on your requirements. Each vendor of Linux has more than adequate 
information on installing these programs.