Connection Diagram For Front Panel Connector; Front Panel Connector - Intel BLKD865PERL Technical Product Specification

2.8.3.2

Front Panel Connector

This section describes the functions of the front panel connector. Table 38 lists the signal names
of the front panel connector. Figure 24 is a connection diagram for the front panel connector.
Table 38. Front Panel Connector
Pin Signal
Hard Drive Activity LED
1 HD_PWR
3 HAD#
5 Ground
7 FP_RESET#
9 +5 V
Dual-colored
Power LED
2.8.3.2.1 Hard Drive Activity LED Connector
Pins 1 and 3 can be connected to an LED to provide a visual indicator that data is being read from
or written to a hard drive. Proper LED function requires one of the following:
•
A Serial ATA hard drive connected to an onboard Serial ATA connector
•
A Parallel ATA IDE hard drive connected to an onboard Parallel ATA IDE connector
2.8.3.2.2 Reset Switch Connector
Pins 5 and 7 can be connected to a momentary single pole, single throw (SPST) type switch that is
normally open. When the switch is closed, the Desktop Board D865PERL resets and runs
the POST.
In/Out Description
Out Hard disk LED pull-up
(750 Ω) to +5 V
Out Hard disk active LED
Reset Switch
Ground
In Reset switch
Power
Power
N/C
Power
Switch
 
 
Single-colored
Power LED
Figure 24. Connection Diagram for Front Panel Connector
Pin Signal In/Out
Power LED
2 HDR_BLNK_ Out
GRN
4 HDR_BLNK_ Out
YEL
On/Off Switch
6 FPBUT_IN In
8 Ground
Not Connected
10 N/C
9
+5 V DC
8 7
Reset
Switch
6 5

4 3

2 1
Activity LED
Technical Reference
Description
Front panel green
LED
Front panel yellow
LED
Power switch
Ground
Not connected−
Hard Drive
OM15966
71