Apple PowerBook G3 - Manual (Page 47)

Using Your PowerBook and Connecting to a Network 47
Using the Infrared File Transfer Capability
Your PowerBook comes with built-in infrared (IR) communication features that let you send
and receive data without wires.
With IR communications, you can exchange files with another PowerBook or with a desktop
Macintosh using an external IR module. You can also use IR to make a wireless connection to
a network by means of a specialized local area network (LAN) access device that is
compatible with the Infrared Data Association (IrDA) Standard specifications.
To transfer files, your computer and the other IR device must be within range of each other
with their IR windows facing. The range depends on the devices and the method of
communication.
Note: For best results, place the IR windows directly facing each other. If the angle between
the windows is greater than 10 degrees, an IR connection may not be possible.
IR-equipped PowerBook computers must be within 3 feet of each other to exchange files
using the IRTalk transfer protocol (at 230 kilobits per second). Your computer must be within
3 feet of a LAN access device or another IrDA PowerBook to make a connection (at a
communications rate of up to 4 megabits per second).
For information on setting up your software for IR communication, see the online help,
available in the Help menu.
IR window