HP 4425S manual Media Access Protocol, Network Architecture, Models, Roaming, Power Consumption

QuickSpecs

HP ProBook 4425s Notebook PC

Technical Specifications

Media Access Protocol	CSMA/CA (Collision Avoidance) with ACK
Network Architecture	Ad-hoc (Peer to Peer)
Models	Infrastructure (Access Point Required)
Roaming	IEEE 802.11 compliant roaming between access points
Output Power (for CCK)2	17 dBm , nominal

Output Power (for OFDM; 15 dBm , nominal power varies by data

rate)2

Power Consumption	Idle associated: 250 mW avg (CLKREQ enabled)
	Idle unassociated: 425 mW avg
	Transmit/Receive 20 MHz channel: 5.5 W (max)
Power Management	ACPI compliant power management
	802.11 compliant power saving mode
Receiver Sensitivity3	72.2 Mbps: -71dBm
Antenna type	High efficiency dual band antenna with spatial diversity, usually mounted in
	the display enclosure
Form Factor	PCI-Express Half-MiniCard
Weight	0.013 lb (6 g)
Dimensions	0.19 x 1.06 x 1.18 in (4.75 x 26.8 x 30 mm)
Operating Voltage	3.3v +/- 10%
Temperature	Operating	14° to 149° F (-10° to 65° C)
	Non-operating	-40° to 176° F (-40° to 80° C)
Humidity	Operating	10% to 90% (non-condensing)
	Non-operating	5% to 95% (non-condensing)
Altitude	Operating	0 to 10,000 ft (3,048 m)
	Non-operating	0 to 50,000 ft (15,240 m)
LED Activity	LED Off - Radio OFF; Solid LED On - Radio ON

1.Check latest software/driver release for updates on supported security features.

2.Maximum output power may vary by country according to local regulations.

3.Receiver sensitivity is measured at a packet error rate of 8% for 802.11b (CCK modulation) and a packet error rate of 10% for 802.11a/g (OFDM modulation).

4.WLAN supplier's client utility is required for Cisco Compatible Extensions support with Microsoft Windows XP. WLAN may also be compatible with certain third-party software supplicants. WLAN supplier IHV extensions required for Cisco Compatible Extensions support for Microsoft Windows Vista and Win7.

HP Integrated Module	Bluetooth Specification	2.1+EDR Compliant
with Bluetooth 2.1+EDR	Dimensions	1.18 x 0.26 x 0.13 in (30 x 6.5 x 3.25 mm)
Wireless Technology	Frequency Band	2402 to 2480 MHz
	Number of Available	79 (1 MHz) available channels
	Channels
	Data Rates and	3 Mbps data rate; throughput up to 2.17 Mbps
	Throughput	Synchronous Connection Oriented links up to 3, 64 kbps, voice channels
		Asynchronous Connection Less links 2178.1 kbps/177.1 kbps asymmetric or
		1306.9 kbps symmetric

DA - 13610 North America — Version 10 — November 23, 2010 Page 24