HP xw8400 Service And Technical Reference Manual page 163

USB connector
IEEE 1394 connector
Microphone connector (1/8 inch)
Headphone connector (1/8 inch)
Line-in audio connector (1/8 inch)
Line-out audio connector (1/8 inch)
ENWW
Pin Signal
1 +5 VDC
2 - Data
3 + Data
4 GND
Pin Signal
1 power
2 gnd
3 tpb-
4 tpb+
5 tpa-
6 tpa+
Pin Signal
1 (Tip) Audio
2 (Ring) Power
3 (Shield) Ground
Pin Signal
1 (Tip) Audio_Left
2 (Ring) Audio_Right
3 (Shield) Ground
Pin Signal
1 (Tip) Audio_In_Left
2 (Ring) Audio_In_Right
3 (Shield) Ground
Pin Signal
1 (Tip) Audio_Out_Left
2 (Ring) Audio_Out_Right
Connector pin descriptions 155