Intel Desktop Board DH87RL Technical Product Specification
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2.2.2.1 Signal Tables for the Connectors and Headers
Table 14. Front Panel Audio Connector for Intel HD Audio
Pin Signal Name Pin Signal Name
1 [Port 1] Left channel 2 Ground
3 [Port 1] Right channel 4 PRESENCE# (Dongle present)
5 [Port 2] Right channel 6 [Port 1] SENSE_RETURN
7 SENSE_SEND (Jack detection) 8 Key (no pin)
9 [Port 2] Left channel 10 [Port 2] SENSE_RETURN
Table 15. Front Panel Audio Connector for AC ’97 Audio
Pin Signal Name Pin Signal Name
1 MIC 2 AUD_GND
3 MIC_BIAS 4 PRESENCE#
5 [Port 2] Right channel 6 [Port 1] SENSE_RETURN
7 SENSE_SEND (Jack detection) 8 Key (no pin)
9 [Port 2] Left channel 10 [Port 2] SENSE_RETURN
Table 16. Dual-Port Front Panel USB 2.0 Header
Pin Signal Name Pin Signal Name
1 +5 V DC 2 +5 V DC
3 D− 4 D−
5 D+ 6 D+
7 Ground 8 Ground
9 KEY (no pin) 10 No Connect
Notes: The +5 V DC power on the USB headers is fused.
The Serial POST pin is reserved for compatibility with future POST debug cards
Table 17. Front Panel Single-Port USB 2.0 Header
Pin Signal Name
1 +5 V DC
2 D-
3 D+
4 Ground
5 Key (no pin)