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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 Gray Keyboard
HP USB Gray KeyboardHP USB Gray Keyboard
HP USB Gray Keyboard
Physical
PhysicalPhysical
Physical
characteristics
characteristicscharacteristics
characteristics
Keys
KeysKeys
Keys
104, 105, 106, 107, 109 layout (depending
upon country)
Dimensions
DimensionsDimensions
Dimensions
(L x W x H)
18.0 x 6.4 x 0.98 in (45.8 x 16.3 x 2. 5 cm)
Weight
WeightWeight
Weight
2 lb (0.9 kg) minimum
Electrical
ElectricalElectrical
Electrical
Operating voltage
Operating voltageOperating voltage
Operating voltage
+ 5VDC ± 5%
Power consumption
Power consumptionPower consumption
Power consumption
50-mA maximum (with three LEDs ON)
System interface
System interfaceSystem interface
System interface
USB Type A plug connector
ESD
ESDESD
ESD
CE level 4, 15-kV air discharge
EMI – RFI
EMI – RFIEMI – RFI
EMI – RFI
Conforms to FCC rules for a Class B computing
device
Microsoft PC 99 – 2001
Microsoft PC 99 – 2001Microsoft PC 99 – 2001
Microsoft PC 99 – 2001
Functionally compliant
Mechanical
MechanicalMechanical
Mechanical
Languages
LanguagesLanguages
Languages
38 available
Keycaps
KeycapsKeycaps
Keycaps
Low-profile design
Switch actuation
Switch actuationSwitch actuation
Switch actuation
55-g nominal peak force with tactile feedback
Switch life
Switch lifeSwitch life
Switch life
20 million keystrokes (using Hasco modified
tester)
Switch type
Switch typeSwitch type
Switch type
Contamination-resistant switch membrane
Key-leveling mechanisms
Key-leveling mechanismsKey-leveling mechanisms
Key-leveling mechanisms
For all double-wide and greater-length keys
Cable length
Cable lengthCable length
Cable length
6 ft (1.8 m)
Microsoft PC 99 – 2001
Microsoft PC 99 – 2001Microsoft PC 99 – 2001
Microsoft PC 99 – 2001
Mechanically compliant
Acoustics
AcousticsAcoustics
Acoustics
43-dBA maximum sound pressure level
Environmental
EnvironmentalEnvironmental
Environmental
Operating temperature
Operating temperatureOperating temperature
Operating temperature
50° to 122° F (10° to 50° C)
Non-operating
Non-operatingNon-operating
Non-operating
temperature
temperaturetemperature
temperature
-22° to 140° F (-30° to 60° C)
Operating humidity
Operating humidityOperating humidity
Operating humidity
10% to 90% (non-condensing at ambient)
Non-operating humidity
Non-operating humidityNon-operating humidity
Non-operating humidity
20% to 80% (non-condensing at ambient)
Operating shock
Operating shockOperating shock
Operating shock
40 g, six surfaces
Non-operating shock
Non-operating shockNon-operating shock
Non-operating shock
80 g, six surfaces
QuickSpecs
HP Compaq dc7800 Business PC
HP Compaq dc7800 Business PCHP Compaq dc7800 Business PC
HP Compaq dc7800 Business PC
Technical Specifications - Input/Output Devices
DA - 12744 North America — Version 25 — May 16, 2008
Page 49