HP 2540P manual Media Access Protocol, Mbps -71 dBm, 11 Mbps -85 dBm , 1 Mbps -95 dBm

QuickSpecs

HP EliteBook 2540p Notebook PC

Technical Specifications

Security1	Supports 64- and 128-bit WEP, WPA, WPA2, hardware-accelerated AES,
	802.1x authentication types EAP-TLS, EAP-TTLS, PEAP-GTC, PEAP-
	MSCHAPv2, LEAP, EAP-FAST.
	Support for Cisco Security Features (proven compatibility with Cisco Aironet
	infrastructure products through the Cisco Compatible Extensions Program
	Version 4) with Microsoft Windows Vista and XP only.
Sub-channels	Multinational support with frequency bands and channels compliant to local
	regulations.
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
	Idle unassociated: 150 mW
	Transmit: 2.0 W (max)
	Receive: 2.0 W (max)
Power Management	ACPI compliant power management
	802.11 compliant power saving mode
Receiver Sensitivity3	54 Mbps: -71 dBm, 11 Mbps: -85 dBm , 1 Mbps: -95 dBm
Antenna Connections	High efficiency dual band antenna with spatial diversity, 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.

DA - 13566 North America — Version 7 — May 11, 2010 Page 32