2.4 GHz Wireless LAN
Wireless LAN PC carrd with 22Mbps enhanced
network speed and built-in antenna.
2.4GHz Enhanced Performance Wireless LAN CardBus Adapter
The D-Link AirPlus DWL-650+ is a powerful CardBus adapter for notebook PCs. This adapter connects you to a 2.4GHz
wireless LAN, giving you fast, secured mobile access to the network. With fast 32-bit PC Card Type II interface, the DWL-
650+ provides enhanced transmission speeds at up to 22Mbps, industry standard interoperability, strong 256-bit data
security and ease of use ideal for notebook PC users requiring fast, secure wireless network connection.

Enhanced Speed Transmission
At 22 Megabits per second, the DWL-650+ delivers high
provides the necessary security, using the enhanced
data transfer rate within the industry standard. This speed
64/128/256-bit industry-standard WEP (Wired Equivalent
is double the 11Mbps normally found among IEEE
Privacy) encryption protocol. Data privacy mechanism is
802.11b 2.4GHz wireless LAN devices.
based on a shared key algorithm, as described in the
wireless LAN standard.
Industry-standard Interoperability
With both WiFi certification compatibility and IEEE
Easy Installation
802.11b wireless LAN industry standard compliance, the
With hot swap and plug-and-play capabilities, the
DWL-650+ adapter provides you with excellent network
DWL-650+ adapter can be easily installed into a notebook
PC to provide connectivity directly to another 802.11b
wireless enabled device (ad-hoc mode) or through an
Network Security
802.11b Access Point (infra-structure mode).
Security is an issue when data is transmitted without the
wires. In the air, transmitted data can be easily intercepted
if not well protected by a security scheme. The DWL-650+
32-bit high-performance CardBus (PC Card Type II)
Up to 22Mbps enhanced data transfer rate
adapter for notebook PC
Enterprise-level security with 64/128/256-bit WEP data
IEEE 802.11b industry standard compliance
2.4GHz frequency band Direct Sequence Spread
Supports Windows 98, 2000, ME, XP
Spectrum (DSSS)
Wi-Fi compatibility certified

Technical Specifications
2.4 GHz Wireless LAN PC Card
Standards & Hardware Specifications
LAN Standard
IEEE 802.11b wireless LAN
114 (L) x 54 (W) x 6 (H) mm
(4.5 x 2.25 x 0.25 inches)
Adapter Type
PC Card Type II CardBus
43 grams (0.095 lb.)
Media Access Control Protocol
Operating Temperature

-10 - 55 C (14 - 131 F)
Network Architecture Types
- Supports Ad-Hoc and Infrastructure Modes
Storage Temperature
- Cell to cell roaming (IEEE 802.11b compliant)

-20 - 75 C (-4 - 167 F)
Data Rates
- 22 Mbps
Up to 95%, non-condensing
- 11 Mbps
- 5.5 Mbps
Emission Certification
- 2 Mbps
- FCC Class B
- 1 Mbps
- CE Class B
- Auto fall-back
Compatibility Certification
Data Rate & Modulation
- 22Mbps: PBCC
- 11Mbps: PBCC or CCK
MBTF (Mean Time Between Failure)

- 5.5Mbps: PBCC or CCK
> 30,000 hours
- 2Mbps: Barker
Operating Channels
- North America (FCC): 11
O.S. Support
- Canada (DOC): 11
Windows 98, 2000, ME, XP
- Europe (ETSI): 13 (Except Spain and France)
- Japan (MKK): 14
Sensitivity @ PER<0.08
- 22Mbps < -80dBm (PBCC)
- 11Mbps < -84dBm (PBCC)
- 5.5Mbps < -86dBm (CCK)
- 2 Mbps < -89dBm (CCK)
- 1 Mbps < -91dBm (CCK)
Frequency Range
2.4 - 2.4835 GHz
Modulation Techniques
- Direct Sequence Spread Spectrum (DSSS)
- Packet Binary Convolutional Coding (PBCC)
- 11-chip Barker Sequence
Key Management
Automatic Dynamic Key Allocation (ADKA) through public key
Data Security

64, 128, 256-bit WEP (Wired Equivalent Privacy) encryption
2dBi Gain internal patch antenna supporting diversity
Transmitter Output Power
15dBm + 2dBm
Seamless roaming across cell boundaries within access point range
Range Coverage (Open Environment)
- Indoors: Up to 100 meters (328 feet)
- Outdoors: Up to 400 meters (1,312 feet)
Physical & Environmental
Diagnostic LEDs
- Power
- Link/Activity
Operating Voltage
3.3V +/- 10%
Power Consumption
- Transmission: 650 mA (max.)
- Reception: 350 mA (max.)

2.4 GHz Wireless LAN PCI Card

Document Outline