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Chapter 2 Installation 23
USB connector (CN3)
The PCM-6890B provides two USB (Universal Serial Bus) interfac-
es, which give complete plug and play, hot attach/detach for up to
127 external devices. The USB interfaces comply with USB
specification Rev. 1.0, and can be disabled in the system BIOS
setup.
USB connector (CN3)
Pin Function Pin Function
1 GND 5 Vcc
2 UD1+ 6 UD0-
3 UD1- 7 UD0+
4 Vcc 8 GND
CD Audio connector (CN4)
This connector is used to connect to a CD audio cable.
CD Audio connector (CN4)
Pin Signal
1 GND
2 CD_L
3 GND
4 CD_R