Infrared Data Association (IrDA)
The
Infrared Data Association (IrDA) is an association that defined the
group of short-range, high speed, bidirectional wireless
infrared protocols, generically referred to as IrDA. The IrDA
protocol stack enables computers running Windows 2003 to connect
easily to peripheral devices or other computers without the use of
connecting cables. For example, Windows 2003 automatically detects
infrared devices, such as other computers or cameras, which are
within range of each other. IrDA enables users to transfer
information and share resources, such as printers, cameras, portable
computers, desktop computers, and personal digital assistants
(PDAs).
IrDA
enables wireless communication between any two infrared devices
within range of each other. For example, two users traveling with
laptop computers can transfer files by setting up an IrDA
connection, instead of by using cables or floppy disks. IrDA
automatically configures the connection when the portable computers
are placed within close proximity. In addition, IrDA enables a
computer to access resources that are attached to another computer.
For example, if a user with a laptop computer needs to print a
document, the user can create an IrDA connection with a computer
that is connected to a printer, either locally or on a network. When
that connection is established, the user, with appropriate
permissions, can print over the IrDA connection.
The
characteristics of IrDA wireless communication include:
-
A worldwide standard for wireless infrared connectivity.
-
Ease of implementation and use.
-
No risk of radiation from infrared rays.
-
No electromagnetic noise.
-
No government regulatory issues.
-
Minimum crosstalk (signal overflow from adjacent cable).
