Samsung NP20 Manual do Utilizador Página 114

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Specifications 99
Wireless LAN Specification
Name of the Registered Equipment : Special Low Output Wireless Device For
Wireless Data Communication Systems.
Radio Specifications
Item Detailed Specifications
Physical
Specifications
Dimensions (Width X Height) 59.75 X 50.95 mm
operation temperature and
humidity
Same as system operation
Temperature: 0°C ~ 40°C
Humidity: less than 95%
Power Specification Power Saving Mode 45mA
Receiving Mode 250mA
Transmission Mode 350mA
Power 3.3V +/- 0.2V
Network
Specifications
Compatibility IEEE802.11b standard (DSSS)
Mini-PCI Rev.1.0
Operating System Microsoft Windows XP, 2000, ME, 98SE
- NDIS5 Miniport Driver
Media Access Protocol CSMA/CA (Collision Avoidance) with
Acknowledgement(ACK)
Security Wireless Equivalent Privacy support
64bit (WEP)/128bit (RC4)
RF Band 2.4 GHz
Support Channels 1~13 channel (See "Regulatory Notice for Channel Use in France".)
Device Transceiver
Direct Sequence Spread Spectrum (DSSS)
Modulation Scheme Direct Sequence Spread Spectrum (DSSS)
CCK for high and mid transmission rate
DQPSK for standard transmission rate
DBPSK for low transmission rate
Spreading 11 chip Barker sequence
Bit Error Rate (BER) Less than 10-5
Standard Output Power 5 mW
Transmission Rate High Speed Mid Speed Standard Low Speed
11 Mb/s 5.5 Mb/s 2 Mb/s 1 Mb/s
Delay Spread (at FER of < 1%) 65ns 225ns 400ns 500ns
Antenna Type Internal antenna (TX/RX)
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