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HP Compaq dc7600 MT Technical Reference Guide

HP Compaq dc7600 MT
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Technical Reference Guide www.hp.com 5-29
Input/Output Interfaces
5.7.4 USB Cable Data
The recommended cable length between the host and the USB device should be no longer than
sixteen feet for full-channel (12 MB/s) operation, depending on cable specification (see
following table).
NOTE:
For sub-channel (1.5 MB/s) operation and/or when using sub-standard cable shorter lengths may
be allowable and/or necessary.
The shield, chassis ground, and power ground should be tied together at the host end but left
unconnected at the device end to avoid ground loops.
Table 5-23.
USB Cable Length Data
Conductor Size Resistance Maximum Length
20 AWG 0.036 16.4 ft (5.00 m)
22 AWG 0.057 9.94 ft (3.03 m)
24 AWG 0.091 6.82 ft (2.08 m)
26 AWG 0.145 4.30 ft (1.31 m)
28 AWG 0.232 2.66 ft (0.81 m)
Color code
Signal Insulation color
Data + Green
Data - White
Vcc Red
Ground Black

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HP Compaq dc7600 MT Specifications

General IconGeneral
MemoryUp to 4 GB DDR2 SDRAM
AudioIntegrated High Definition Audio
Expansion Slots1 PCI Express x16, 1 PCI Express x1, 2 PCI
Form FactorMicrotower
ProcessorIntel Pentium 4 or Intel Celeron D
ChipsetIntel 945G Express
Hard Drive40 GB to 160GB SATA
Optical DriveDVD-ROM, DVD+/-RW
GraphicsIntegrated Intel Graphics Media Accelerator 950
NetworkingIntegrated 10/100/1000 Ethernet
PortsSerial, parallel, VGA, audio in/out
Operating SystemWindows XP Professional, Windows XP Home
USB Ports8 USB 2.0 (2 front, 6 rear)

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