-- IrDA(R) Tutorial --
"IrDA
Wireless Connectivity: White Papers"
Introduction:
Portable computing
has become synonymous with the rapidly changing world of technology
in today's work environment. Every company recognizes that in order
to compete they must keep pace, as well as deploy and manage this
new technology in order to maintain their competitive edge. New
economic trends in the global economy will continue to push
companies to find new ways to enhance productivity and maintain
flexibility among their employees.
In fact, portable
computing according to recent studies is poised for some very
dramatic growth. Many estimates suggest that the number of portable
computers sold in 1996 will double from the 5.6 million units sold
in 1993. A trend that is likely to continue as companies deploy
their workforce to a more "mobile office concept". One
obstacle to achieving the goal of mobile connectivity has always
been the limitation of the cable connection. Whether you are
connecting to the printer, your network or exchanging data with the
desktop, the cable connection is viewed as a hindrance to the
effective and efficient use of the portable computer.
The
Infrared Model:
In an effort to
achieve a wireless connection to a full range of peripheral devices
without the hassle of cable, infrared technology was born.
Benefits
of Infrared:
- A worldwide
standard for wireless connectivity
- Easy to
implement and simple to use
- Safe in any
environment
- No
electromagnetic noise
- No government
regulatory issues
- Minimum
crosstalk
The
IrDA standard:
In 1993 leaders
from both the communication and computer industry formed the
Infra-red Data Association (IrDA) with the sole purpose of creating
a standard for infrared wireless data transfer.
Now the IrDA
association has over 120 members worldwide. It includes some of the
most recognized companies in the world, such as: Apple, AT&T,
ACTiSYS, Canon, Compaq, Hitachi, Intel, Hewlett Packard, Microsoft,
Motorola NTT, Sony, Toshiba and many others.
Connecting
with IR:
Once two infrared
devices are within range of each other, Windows 95 will
automatically detect the device and display its signature on the
screen. An audible alert will also sound indicating a connection has
been made. If for any reason the beam is interrupted Windows 95 will
again signal audibly and attempt to re-establish the link for up to
45 seconds. No data loss will occur if the link is re-established at
that time.
Summary:
In 1995 only 38% of
the leading portable computer manufacturers shipped Infrared with
their product. By early 1997 that number is expected to reach 100%.
The reason is simple; Cost, reliability & flexibility have all
contributed to the overwhelming acceptance the Infrared standard now
enjoys.
Users now have the
option to be free of the hassle and clutter of cables and various
connectors and still have virtually unlimited connectivity to a wide
range of desktop and peripheral devices.
A
commitment to Infrared technology:
ACTiSYS' commitment
to infrared technology dates back to 1989. In September of 1993 they
were one of early members of the IrDA standards association and
remain active to this day. In November of 1993, at the Fall Comdex,
they introduced the worlds first dual-mode IR serial adapter. Today,
ACTiSYS boasts one of the most complete lines of IrDA products in
the industry, including IR Protocol and test software as well as a
full range of IR adapter products. |