HP QUICKSPECS DC7900 Quickspecs page 49

Hewlett-packard personal computer user manual
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QuickSpecs
Technical Specifications - Input/Output Devices
HP USB PS2 Washable
Keyboard
Physical
characteristics
Electrical
Mechanical
Environmental
Approvals
Ergonomic compliance ANSI HFS 100, ISO 9241-4, and TUVGS
DA - 13029
Worldwide QuickSpecs — Version 24 — 10/30/2009
Interface modes
Reader performance
interface
Electro-magnetic
standards
Keys
Dimensions (L x W x H) 17.67x 6.62 x 1.38 in (449 x 168 x 35 mm)
Weight
Operating voltage
Power consumption
System interface
ESD
EMI - RFI
Microsoft® PC 99 - 2001 Functionally compliant
Keycaps
Switch actuation
Switch life
Switch type
Key-leveling
mechanisms
Cable length
Microsoft PC 99 - 2001
Acoustics
Operating temperature
Non-operating
temperature
Operating humidity
Non-operating humidity
Operating shock
Non-operating shock
Operating vibration
Non-operating vibration
Drop (out of box)
Drop (in box)
UL, cUL, FCC, CE, TUV GS, VCCI, BSMI, C-Tick, KCC, USB-IF,
WHQL, EN/IEC 60601-1, IP66/NEMA4X
HP Compaq dc7900 Business PC
USB communications through USB port
SCM protocol
Automatic card insertion/removal detection
USB connection
Europe
89/336/CEE guideline
USA
USAFCC part 15
104 (US) Layout, 105 (EU) layout --
depending upon country
1.7 lb (0.77 kg) minimum
+ 5VDC ±5%
50-mA maximum (with three LEDs ON)
USB Type A plug connector
CE level 4, 15-kV air discharge
Conforms to FCC rules for a Class B
computing device
Stepped -profile design
55-g nominal peak force with tactile feedback
20 million keystrokes
Contamination-resistant switch membrane
For all double-wide and greater-length keys
7 ft (2.2 m)
Mechanically compliant
43-dBA maximum sound pressure level
50° to 122° F (10° to 50° C)
-4° to 149° F (-20° to 65° C)
10% to 95% (non-condensing at ambient)
0% to 95% (non-condensing at ambient)
40 g, six surfaces
80 g, six surfaces
2-g peak acceleration
4-g peak acceleration
26 in (66 cm) on carpet, six-drop sequence
42 in (107 cm) on concrete, 16-drop
sequence
Page 49

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