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Interoperability
InteroperabilityInteroperability
Interoperability
Wi-Fi certified
Cisco Compatible Extensions Program compliant with Microsoft Windows
Vista and XP
Frequency Band
Frequency BandFrequency Band
Frequency Band
2.4 GHz and 5GHz
Antenna Structure
Antenna StructureAntenna Structure
Antenna Structure
2 transmit; 2 receive (2x2)
Data Rates
Data RatesData Rates
Data Rates
802.11a: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11b: 1, 2, 5.5, 11 Mbps
802.11g: 6, 9, 12, 18, 24, 36, 48, 54 Mbps
802.11n: 66 possible data rates, ranging from 6 Mbps to 300 Mbps,
depending on the combination of Bandwidth, Modulation Coding Scheme,
and Guard Interval used, as defined in IEEE 802.11n specification
Modulation
ModulationModulation
Modulation
Direct Sequence Spread Spectrum
DBPSK, DQPSK, CCK, OFDM, BPSK, QPSK, 16-QAM, 64-QAM
Security
SecuritySecurity
Security
1
Authentication: WPA and WPA2, 802.1x (EAP_TLS, TTLS, PEAP, LEAP, EAP-
FAST)
Authentication Protocols: PAP, CHAP, TLS, GTC, MS-CHAP, MS-CHAPv2
Encryption: 64 and 128-bit WEP, AES-CCMP, CKIP, TKIP
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
Sub-channelsSub-channels
Sub-channels
Multinational support with frequency bands and channels compliant to local
regulations.
Media Access Protocol
Media Access ProtocolMedia Access Protocol
Media Access Protocol
CSMA/CA (Collision Avoidance) with ACK
Network Architecture
Network ArchitectureNetwork Architecture
Network Architecture
Models
ModelsModels
Models
Ad-hoc (Peer to Peer)
Infrastructure (Access Point Required)
Roaming
RoamingRoaming
Roaming
IEEE 802.11 compliant roaming between 2.4GHz band Access Points
Output Power
Output PowerOutput Power
Output Power
(for CCK
and OFDM)
2
17 dBm max
Power Consumption
Power ConsumptionPower Consumption
Power Consumption
Transmit: 2.3 Watts (max, with two spatial streams)
Receive: 1 Watt (max with two spatial streams)
Idle mode
3
: 35 mW (average)
Radio off: 20 mW (max)
Power Management
Power ManagementPower Management
Power Management
ACPI compliant power management
802.11 compliant power saving mode
Receiver Sensitivity
Receiver SensitivityReceiver Sensitivity
Receiver Sensitivity
4
54 Mbps: -76 dBm, 6 Mbps: -92 dBm
Antenna Connections
Antenna ConnectionsAntenna Connections
Antenna Connections
2 U.FL type connectors, 50 ohm nominal impedance
Form Factor
Form FactorForm Factor
Form Factor
PCI-Express Half-MiniCard
Weight
WeightWeight
Weight
0.0075 lb (3.4 g)
Dimensions
DimensionsDimensions
Dimensions
0.12 x 1.06 x 1.18 in (3.1 x 26.8 x 30.0 mm)
Operating Voltage
Operating VoltageOperating Voltage
Operating Voltage
3.3V +/- 9%
Temperature
TemperatureTemperature
Temperature
Operating
Non-operating
32° to 176° F (0° to 80° C)
-40° to 176° F (-40° to 80° C)
QuickSpecs
HP EliteBook 8540w Mobile Workstation
HP EliteBook 8540w Mobile WorkstationHP EliteBook 8540w Mobile Workstation
HP EliteBook 8540w Mobile Workstation
Technical Specifications
DA - 13529 Canada — Version 20 — November 23, 2010
Page 33