Product Card

1
SECTION 1 Introduction
1.1 Wireless LAN Overview
The Wireless LAN models WL2400-ISA and WL2400-PCM are wireless LAN adapter cards that provide
wireless connections between IBM compatible PCs, including desktop, laptop and notebook computers.
These cards are capable of point-to-point networking or, with the AP-2 (Access Point) acting as an
interface between the networks, connecting a wireless LAN to a wired LAN.
These cards operate in similar manner to Ethernet NICs (Network Interface Cards), but they have a
wireless connection to the network or other computers
equipped with these cards. Once installed properly, the
Wireless LAN is invisible to most users. The –ISA version
plugs into an ISA slot on a desktop computer. The –PCM has
a built-in antenna version and plugs into a PCMCIA slot on
either a laptop computer or an AP-2 Access Point. The –
PCM–J is the same as the –PCM except it has an antenna
jack for connection to an external antenna or the YDI
AMP2440 pole mounted amplifier.
The WL2400 family of wireless LAN cards is a DSSS (Direct
Sequence Spread Spectrum) radio data modem. This radio
technique scrambles the data prior to transmission and uses a correlation technique on receive to improve
the signal to noise ratio. This industry standard technique improves the receiver’s sensitivity, making it
possible to communicate in offices with walls and other obstacles. The cards use the CSMA/CA collision
evasion protocol to prevent collisions on the network, allowing for high-speed data communication.
All the WL2400 models comply with the Wireless LAN International Standard IEEE 802.11. This makes
these devices compatible with any other wireless LAN card or Access Point that also complies with the
IEEE 802.11 DSSS standards.
The WL2400 products are also compatible with our remote mounted bi-directional amplifier, the Model
AMP2440. Using our Model AMP2440 and high gain directional antennas, line-of-site ranges in excess of
30 miles are possible with these units!
The WL2400-ISA and WL2400-PCM cards support various network software. The network drivers and
diagnostic programs included with the cards are supported by Microsoft Windows 3.1x, Windows 95 and
Windows NT.
WL2400 wireless LAN products have been tested and passed FCC certification.
1.2 Specifications
Mechanical Specifications
Model WL2400-ISA WL2400-PCM-J WL2400-PCM
Type
Half Size ISA Bus Card PCMCIA II Card
Dimensions
7.12” x 4.29” x .5”
(181mm x 109mm x12mm )
4” x 2.12” x .196”
(104mm x 54mm x 5 mm )
Standards
IEEE 802.11 Standard for Wireless LANs
Antenna
Left hand thread SMA jack for External Antenna Internal
Voltage
5V from ISA bus 3.3 V