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Operating Principle
11
Operating Principle
This chapter describes the basic procedures to operate and configure a INSYS Modem
336 LL 4D/2D AC/DC. The INSYS Modem 336 LL 4D/2D AC/DC is configured and operated
via AT commands. You can enter these commands yourself with the help of a terminal
program and the AT command reference.
11.1
Operation with the Terminal Program
In general, any terminal program may be used. We recommend the program "Ter-
aTerm" by T. Teranishi. It is available free of cost on the Internet at
http://hp.vector.co.jp/authors/VA002416/teraterm.html.
Configuration and settings of the INSYS Modem 336 LL 4D/2D AC/DC with a terminal
program
How to configure and operate the INSYS Modem 336 LL 4D/2D AC/DC with
a terminal program.
The INSYS Modem 336 LL 4D/2D AC/DC is connected to the PC and
switched on.
The Power LED, the OH LED and the DCD LED light up.
A terminal program is installed on the PC.
1.
Start your terminal program.
2.
Open the serial port to which you connected the INSYS Modem 336 LL 4D/2D
AC/DC.
COM1 under Windows corresponds to /dev/ttyS0 under Linux.
3.
Press the reset key for 1 second.
The INSYS Modem 336 LL 4D/2D AC/DC will switch into configuration mode
and the DCD LED and the OH LED will go out.
In the terminal program, the message NO CARRIER is displayed.
4.
Type the character string AT into the terminal program. Complete the entry
by pressing the Enter key.
Each command input starts with AT and is completed with the Enter key.
The INSYS Modem 336 LL 4D/2D AC/DC responds with
OK.
If the INSYS Modem 336 LL 4D/2D AC/DC does not respond, this may have
three reasons:
30
INSYS Modem 336 LL
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