HP DC7900 - Manual (Page 52)

Communication Communication Communication Communication From card From card From card From card Programmable from
9,600 baud to
115,200 baud
From computer From computer From computer From computer Up to 38,400 baud
Landing mechanism Landing mechanism Landing mechanism Landing mechanism Contact device Contact device Contact device Contact device Friction contact
Card insertions rating Card insertions rating Card insertions rating Card insertions rating Up to 100,000
insertion cycles
Interface modes Interface modes Interface modes Interface modes USB communications through USB port
SCM protocol
Automatic card insertion/removal detection
Reader performance Reader performance Reader performance Reader performance
interface
interface interface interface
USB connection
Electro-magnetic Electro-magnetic Electro-magnetic Electro-magnetic
standards
standards standards standards
Europe Europe Europe Europe 89/336/CEE guideline
USA USA USA USA USAFCC part 15
HP PS/2 Optical Scroll HP PS/2 Optical Scroll HP PS/2 Optical Scroll HP PS/2 Optical Scroll
Mouse
Mouse Mouse Mouse
Dimensions Dimensions Dimensions Dimensions (H x L x W) 3.95 x 6.21 x 11.7 cm (1.56 x 2.44 x 4.61 in)
Weight Weight Weight Weight 4.44 oz (126 g)
Environmental Environmental Environmental Environmental Operating temperature Operating temperature Operating temperature Operating temperature -32° to 104°F (0° to 40° C)
Non-operating Non-operating Non-operating Non-operating
temperature
temperature temperature temperature
-4° to 140°F ( -20° to 60° C)
Operating humidity Operating humidity Operating humidity Operating humidity 10% to 90% (non condensing at ambient)
Non-operating humidity Non-operating humidity Non-operating humidity Non-operating humidity 10% to 90% non condensing
Operating shock Operating shock Operating shock Operating shock 40 g, 6 surfaces
Non-operating shock Non-operating shock Non-operating shock Non-operating shock 80 g, 6 surfaces
Operating vibration Operating vibration Operating vibration Operating vibration 2 g peak acceleration
Non-operating vibration Non-operating vibration Non-operating vibration Non-operating vibration 4 g peak acceleration
Drop Drop Drop Drop (out of box) (out of box) (out of box) (out of box) 80 cm height onto asphalt tile over concrete or
equivalent, 5-drop in 5 direction except the cable
face
Electrical Electrical Electrical Electrical Operating voltage Operating voltage Operating voltage Operating voltage 5 VDC ± 10%
Power consumption Power consumption Power consumption Power consumption 100mA
System consumption System consumption System consumption System consumption PS/2 mini-din connector
ESD ESD ESD ESD CE level 4, 15 kV air discharge
EMI-RFI EMI-RFI EMI-RFI EMI-RFI Conforms to FCC rules for a Class B computing
device
Microsoft PC99 - 2001 Microsoft PC99 - 2001 Microsoft PC99 - 2001 Microsoft PC99 - 2001 Functionally compliant
Mechanical Mechanical Mechanical Mechanical Resolution Resolution Resolution Resolution 400 ± 20% DPI
Tracking speed Tracking speed Tracking speed Tracking speed 10 in/s (25.4 cm/s) maximum
Acceleration Acceleration Acceleration Acceleration 100 in/s/s (2.54 m/s/s)
Switch actuation Switch actuation Switch actuation Switch actuation 61 g nominal peak force
Switch life Switch life Switch life Switch life 3,000,000 operations (using Hasco modified
tester)
Switch type Switch type Switch type Switch type Low force micro-switches
QuickSpecs
HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC HP Compaq dc7900 Business PC
Technical Specifications - Input/Output Devices
DA - 13029 North America — Version 15 — March 30, 2009 Page 52