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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.
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).
1 Vcc N/A Supply voltage
2DATA I Data in
3 +DATA O Data out
4 GND N/A Signal ground
1
2
USB
1 4
1 4