Appendix A: Specifications

Radio Specifications

IEEE 802.11g

Table 82. IEEE 802.11g Radio Technical Specifications

Frequency band

2.4 to 2.5 GHz worldwide

 

 

Type

Direct sequence, spread spectrum

 

 

Modulation

Direct sequence, spread spectrum (CCK,

 

DQPSK, DBPSK)

 

 

Power output

63 mW (18 dBm)

 

 

Basic data rate

11, 5.5, 2, and 1 Mbps

 

 

Extended data rate

54, 48, 36, 24, 18, 12, 9, and 6 Mbps

 

 

Channels

11 (North America), 13 (Europe), 4 (France), 14

 

(Japan). 1 (Israel)

 

 

Range (Maximum

160 m (525 ft) open environment

power output, 11

50 m (165 ft) semi-open environment

Mbps)a

24 m (80 ft) in closed environment

 

Unlimited range with roaming

 

 

Receiver sensitivity

-82 dBm

(11 Mbps)

 

 

 

Security

IEEE 802.11 Wired Equivalent Privacy (WEP)

 

standard, WEP 64, WEP 128, Wi-Fi Protected

 

Access (WPA)

 

 

a. Lowering the power output level reduces the range.

IEEE 802.11b

Table 83. IEEE 802.11b Radio Technical Specifications

Frequency band

2.4 to 2.5 GHz worldwide

 

 

Type

Direct sequence, spread spectrum

 

 

Modulation

Direct sequence, spread spectrum (CCK,

 

DQPSK, DBPSK)

 

 

Power output

32 mW (15 dBm)

 

 

Data rate

11 Mbps (High), 5.5 Mbps (Medium), 2 Mbps

 

(Standard), 1 Mbps (Low) with automatic

 

fallback for increased range

 

 

302

Page 302
Image 302
Allied Telesis AT-WA7500, AT-WA7501 manual Radio Specifications, Ieee 802.11g, Ieee 802.11b, DQPSK, Dbpsk