QuickSpecs

Power consumption
Power consumptionPower consumption
Power consumption 250-mA maximum draw (50 mA for the
keyboard with three LEDs ON and 200-mA
maximum startup current using a high-current,
60-mA smart card)
Communication
CommunicationCommunication
Communication From card
From cardFrom card
From card Programmable from
9,600 baud to
115,200 baud
From computer
From computerFrom computer
From computer Up to 38,400 baud
Landing mechanism
Landing mechanismLanding mechanism
Landing mechanism Contact device
Contact deviceContact device
Contact device Friction contact
Card insertions rating
Card insertions ratingCard insertions rating
Card insertions rating Up to 100,000
insertion cycles
Interface modes
Interface modesInterface modes
Interface modes USB communications through USB port
SCM protocol
Automatic card insertion/removal detection
Reader performance
Reader performanceReader performance
Reader performance
interface
interfaceinterface
interface
USB connection
Electro-magnetic
Electro-magneticElectro-magnetic
Electro-magnetic
standards
standardsstandards
standards
Europe
EuropeEurope
Europe 89/336/CEE guideline
USA
USAUSA
USA USAFCC part 15
HP USB PS2 Washable
HP USB PS2 WashableHP USB PS2 Washable
HP USB PS2 Washable
Keyboard
KeyboardKeyboard
Keyboard
Physical characteristics
Physical characteristicsPhysical characteristics
Physical characteristics Keys 104 (US) Layout, 105 (EU) layout -- depending
upon country
Dimensions (L x W x H) 17.67x 6.62 x 1.38 in (449 x 168 x 35 mm)
Weight 1.7 lb (0.77 kg) minimum
Electrical
ElectricalElectrical
Electrical Operating voltage + 5VDC ±5%
Power consumption 50-mA maximum (with three LEDs ON)
System interface USB Type A plug connector
ESD CE level 4, 15-kV air discharge
EMI - RFI Conforms to FCC rules for a Class B computing
device
Microsoft® PC 99 - 2001 Functionally compliant
Mechanical
MechanicalMechanical
Mechanical Keycaps Stepped -profile design
Switch actuation 55-g nominal peak force with tactile feedback
Switch life 20 million keystrokes
Switch type Contamination-resistant switch membrane
Key-leveling mechanisms For all double-wide and greater-length keys
Cable length 7 ft (2.2 m)
Microsoft PC 99 - 2001 Mechanically compliant
Acoustics 43-dBA maximum sound pressure level
Environmental
EnvironmentalEnvironmental
Environmental Operating temperature 50° to 122° F (10° to 50° C)
Non-operating
temperature
-4° to 149° F (-20° to 65° C)
Operating humidity 10% to 95% (non-condensing at ambient)
Non-operating humidity 0% to 95% (non-condensing at ambient)
QuickSpecs
HP Compaq dx7500 Business PC
HP Compaq dx7500 Business PCHP Compaq dx7500 Business PC
HP Compaq dx7500 Business PC
Technical Specifications - Input Devices
DA - 13152 Worldwide — Version 19 — July 28, 2009 Page 41