Personal Computer User's Guide

Hardware Configuration Features B-15

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Your system contains two Universal Serial Bus (USB) connectors for attaching USB-

compliant devices. USB devices are typically peripherals such as keyboards, mice,

printers, and computer speakers.

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If you reconfigure your hardware, you may need pin number and signal information for

the USB connectors. Figure B-9 illustrates the pin numbers for the USB connectors,

and Table B-8 lists and defines the pin assignments and interface signals for the USB

connectors.

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The microphone jack (see Figure B-10) can be used to attach a standard personal com-

puter microphone. Connect the audio cable from the microphone to the microphone

jack. The microphone input is a mono source with maximum signal levels of 89 milli-

volts root mean squared (mVrms).

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1 Vcc N/A Supply voltage

2DATA I Data in

3 +DATA O Data out

4 GND N/A Signal ground

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