Intel D848PMB Technical Product Specification - Page 61

Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector, 8.3.2, Front Panel Connector

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Technical Reference 2.8.3.1 Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector. Table 31. Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector Pin Signal Name 1 HDR_BLNK_GRN 2 Not connected 3 HDR_BLNK_YEL In/Out Out Out Description Front panel green LED Front panel yellow LED 2.8.3.2 Front Panel Connector This section describes the functions of the front panel connector. Table 32 lists the signal names of the front panel connector. Figure 15 is a connection diagram for the front panel connector. Table 32. Front Panel Connector Pin Signal In/Out Description Pin Hard Drive Activity LED 1 HD_PWR Out Hard disk LED pull-up 2 (750 Ω) to +5 V 3 HAD# Out Hard disk active LED 4 Reset Switch 5 Ground Ground 6 7 FP_RESET# In Reset switch 8 Power 9 +5 V Power 10 Signal In/Out Description Power LED HDR_BLNK_ Out GRN Front panel green LED HDR_BLNK_ Out YEL Front panel yellow LED On/Off Switch FPBUT_IN In Power switch Ground Ground Not Connected N/C Not connected Hard Drive Activity LED  12  34 Reset Switch 56 78 +5 V DC 9 Single-colored Power LED   Dual-colored Power LED   Power Switch N/C OM16110 Figure 15. Connection Diagram for Front Panel Connector 61

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Technical Reference
61
2.8.3.1
Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector
Pins 1 and 3 of this connector duplicate the signals on pins 2 and 4 of the front panel connector.
Table 31.
Auxiliary Front Panel Power/Sleep/Message-Waiting LED Connector
Pin
Signal Name
In/Out
Description
1
HDR_BLNK_GRN
Out
Front panel green LED
2
Not connected
3
HDR_BLNK_YEL
Out
Front panel yellow LED
2.8.3.2
Front Panel Connector
This section describes the functions of the front panel connector.
Table 32 lists the signal names
of the front panel connector.
Figure 15 is a connection diagram for the front panel connector.
Table 32.
Front Panel Connector
Pin
Signal
In/Out
Description
Pin
Signal
In/Out
Description
Hard Drive Activity LED
Power LED
1
HD_PWR
Out
Hard disk LED pull-up
(750
Ω
) to +5 V
2
HDR_BLNK_
GRN
Out
Front panel green
LED
3
HAD#
Out
Hard disk active LED
4
HDR_BLNK_
YEL
Out
Front panel yellow
LED
Reset Switch
On/Off Switch
5
Ground
Ground
6
FPBUT_IN
In
Power switch
7
FP_RESET#
In
Reset switch
8
Ground
Ground
Power
Not Connected
9
+5 V
Power
10
N/C
Not connected
Single-colored
Power LED
±
²
OM16110
8
6
4
2
9
7
5
3
1
Hard Drive
Activity LED
Reset
Switch
+5 V DC
N/C
Power
Switch
²
±
Dual-colored
Power LED
²
±
Figure 15.
Connection Diagram for Front Panel Connector