User Manual

Alpha Networks Proprietary and Confidential Information
2
2.2 General Requirements
2.2.1 IEEE 802.11b Section
# Feature Detailed Description
2.2.1.2 Standard Ÿ IEEE 802.11b
2.2.1.2 Radio and
Modulation
Schemes
Ÿ DQPSK, DBPSK, DSSS, and CCK
2.2.1.3 Operating
Frequency
Ÿ 2400 ~ 2497MHz ISM band
2.2.1.4 Channel Numbers Ÿ 11 channels for United States
13 channels for Europe Countries
14 channels for Japan
2.2.1.5 Data Rate Ÿ 11, 5.5, 2, and 1Mbps
2.2.1.6 Media Access
Protocol
Ÿ CSMA/CA with ACK
2.2.1.7 Transmitter
Output Power
Ÿ Typical 17(+/- 2)dBm at 11, 5.5, 2, and 1Mbps at
room temperature.
2.2.1.8 Receiver
Sensitivity
Ÿ Typical Sensitivity at Which Frame (1000-byte
PDUs) Error Rate = 8% at room temperature.
Ÿ –84dBm for 11Mbps @ 8% PER
Ÿ –88dBm for 5.5Mbps @ 8% PER
Ÿ –89dBm for 2Mbps @ 8% PER
Ÿ –90dBm for 1Mbps @ 8% PER
2.2.2 IEEE 802.11g Section
# Feature Detailed Description
2.2.2.1 Standard Ÿ 2.4GHz OFDM (IEEE 802.11g )
2.2.2.2 Radio and
Modulation
Schemes
Ÿ BPSK, QPSK, 16QAM, 64QAM, and OFDM
2.2.2.3 Operating
Frequency
Ÿ 2400 ~ 2497MHz ISM band
2.2.2.4 Channel Numbers Ÿ 11 channels for United States
13 channels for Europe Countries
13 channels for Japan
2.2.2.5 Data Rate Ÿ 54, 48, 36, 24, 18, 12, 9, and 6Mbps
2.2.2.6 Media Access
Protocol
Ÿ CSMA/CA with ACK
2.2.2.7 Transmitter
Output Power
Ÿ Typical RF Output Power at each Data Rate
Ÿ +14(+/-2)dBm at 54, 48 Mbps at room temperature
Ÿ +16(+/-2)dBm at 6~36 Mbps at room temperature
2.2.2.8 Receiver
Sensitivity
Ÿ Typical Sensitivity at Which Frame (1000-byte
PDUs) Error Rate = 10% at room temperature.
Ÿ –86dBm at 6Mbps
Ÿ –86dBm at 9Mbps
Ÿ –81dBm at 12Mbps
Ÿ –80dBm at 18Mbps
Ÿ –76dBm at 24Mbps
Ÿ –74dBm at 36Mbps
Ÿ –70dBm at 48Mbps
Ÿ –68dBm at 54Mbps