HP QUICKSPECS DC7900 Hauptspezifikationen PDF herunterladen (Seite 49)

Communication

From card

Programmable from

9,600 baud to 115,200

baud

From computer

Up to 38,400 baud

Landing mechanism

Contact device

Friction contact

Card insertions

rating

Up to 100,000

insertion cycles

Interface modes

USB communications through USB port

SCM protocol

Automatic card insertion/removal detection

Reader performance

interface

USB connection

Electro-magnetic

standards

Europe

89/336/CEE guideline

USA

USAFCC part 15

HP USB PS2 Washable

Keyboard

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

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

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

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)

Operating shock

40 g, six surfaces

Non-operating shock

80 g, six surfaces

Operating vibration

2-g peak acceleration

Non-operating vibration

4-g peak acceleration

Drop (out of box)

26 in (66 cm) on carpet, six-drop sequence

Drop (in box)

42 in (107 cm) on concrete, 16-drop

sequence

QuickSpecs

HP Compaq dc7900 Business PC

Technical Specifications - Input/Output Devices

DA - 13029 Worldwide QuickSpecs — Version 26 — 2/3/2010

Page 49

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QuickSpecs 1

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