Technical information

Communicating with the Infrared Port
Using the Infrared Communication Feature
Note:
When installing an operating
system, you must install the infrared
device driver to use the ThinkPad
mode.
Your computer is equipped with an infrared (IR) communication
feature that allows point-to-point communication with other ThinkPad
computers or systems equipped with an infrared port. The
computer has two infrared ports, one in the front of the computer
below the diskette drive and another on the rear of the computer.
The infrared feature supports three modes with the following
communication speed in bits per second (bps):
To install infrared device
driver:
Page 196.
Notes:
Mbps : Million bits per second
Kbps : Kilobits per second
ThinkPad (1.15 Mbps)
This mode is used when communicating with another 755
series computer with an infrared port or other systems
supporting ThinkPad mode.
Generic (up to 115 Kbps)
This mode is used when communicating with other IBM
ThinkPad computers, Hewlett-Packard** 100LX**, 200LX**,
Omnibook**, or other systems with infrared ports supporting
Generic mode.
Sharp (9600 bps)
This mode is used when communicating with the Sharp**
Wizard** or other systems with infrared ports supporting
Sharp mode.
The ThinkPad Features program contains a utility program that
enables the front or rear infrared port and the communication speed.
If you are using OS/2 or Windows: See page 39.
PS2 command:
Page 41.
If you are using DOS: Type PS2 ? IR at the command prompt;
then press Enter for more information.
72 IBM ThinkPad 755CX User's Guide