User manual

CEP AG Revision 1.3
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Page 9 of 28
2.2.1 GT864 QUAD with Audio connector
The USB connector supports the connectivity of a headset or any other audio
equipment using the analogue microphone and loudspeaker interface of GT864-
QUAD Terminal. The table below describes the signals on the USB connector.
GT864 QUAD Pin Layout for Mini USB connector:
Pin Signal Colour*
1 MIC - Yellow
2 EAR - Red
3 MIC + White
4 EAR + Turquoise
5
(GND – not necessary for
audio)
Black
Pin 5 Pin 1
Note: The colours of the cable are only for the cable delivered by company CEP! If
you use other cable, please check the pinning before!