Dell Wireless 1490 Dual Band WLAN Mini-Card: Dell Wireless WLAN Card User Guide
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Physical Characteristics
Temperature and Humidity Limitations
Power Characteristics
Networking Characteristics
Radio Characteristics
Characteristic Description Form factor Mini card form factor: PCI Express Mini Card Specification, June 2003
Condition Description Operating Temperature 0−75°C Operating Humidity 95% maximum (no condensation allowed) Storage Temperature −40 to +80°C Storage Humidity 95% maximum (no condensation allowed)
The current draw values were measured over a 1-second interval.
The maximum transmit and receive values were measured while transferring
a continuous UDP data stream at the highest rate setting of 54 Mbit/s.
Characteristic Value
Current Draw, Power Save Mode
114 mA (average)
259 mA (maximum)
Current Draw, Receive Mode
326 mA (average)
430 mA (maximum)
Current Draw, Transmit Mode
265 mA (average)
458 mA (maximum)
Power Supply
3.3 V
Characteristic Description Compatibility
IEEE 802.11g standard for wireless LAN (OFDM)
IEEE 802.11b standard for wireless LAN (DSSS)
IEEE 802.11a standard for wireless LAN (OFDM)
Network Operating System Microsoft Windows Networking Host Operating System
Microsoft Windows XP
Microsoft Windows 2000
NDIS5 miniport driver
Medium access protocol CSMA/CA (collision avoidance) with acknowledgment (ACK) Data Rate (Mbit/s)
IEEE 802.11b: 1, 2, 5.5, 11
IEEE 802.11g: 1, 2, 5.5, 6, 9, 11, 12, 18, 24, 36, 48, 54
IEEE 802.11a: 6, 9, 12, 18, 24, 36, 48, 54
NOTE:
The Dell Wireless WLAN Card uses an automatic
transmit rate select mechanism.
NOTE:
See Regulatory for country-specific performance
characteristics and use restrictions.
Characteristic Description Frequency Band
IEEE 802.11b: 2.4 GHz (2400–2500 MHz)
Modulation Technique
IEEE 802.11b: Direct sequence spread spectrum (DSSS)
CCK for high and medium transmit rate
DQPSK for standard transmit rate
DBPSK for low transmit rate
IEEE 802.11g: Orthogonal frequency division multiplexing (OFDM)
52 subcarriers with BPSK, QPSK, 16-QAM or 64-QAM
Forward error correction convolutional coding rate: 1/2, 2/3, 3/4
IEEE 802.11a: Orthogonal frequency division multiplexing (OFDM)
52 subcarriers with BPSK, QPSK, 16-QAM or 64-QAM
Forward error correction convolutional coding rate: 1/2, 2/3, 3/4
Spreading IEEE 802.11b: 11-chip Barker sequence Bit Error Rate (BER) Better than 10-5 Nominal Output Power
IEEE 802.11b: 19 dBm
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