Intel DH55HC Product Guide - Page 50

Front Panel Header, Front Panel USB 2.0 Headers, Table 12. Front Panel Header Signal Names

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Intel Desktop Board DH55HC Product Guide Front Panel Header Figure 23, H shows the location of the front panel header. Table 12 shows the pin assignments and signal names for the front panel header. Table 12. Front Panel Header Signal Names Pin Description In/Out Pin Description Hard Drive Activity LED Power LED 1 Hard disk LED pull-up to +5 V Out 2 Front panel LED+ 3 Hard disk active LED Out 4 Front panel LED- Reset Switch On/Off Switch 5 Ground 6 Power switch 7 Reset switch In 8 Ground Power Not Connected 9 Power Out 10 No pin In/Out Out Out In NOTE When connecting individual wires from your chassis front panel to the front panel header, be sure to observe the connection polarity. Positive wires are usually solid color and negative wires are usually white or striped. Front Panel USB 2.0 Headers Figure 23, I shows the location of the standard front panel USB 2.0 header and Table 13 shows its pin assignments and signal names. Table 13. USB 2.0 Header Signal Names Pin Signal Name Pin 1 Power (+5 V) 2 3 D- 4 5 D+ 6 7 Ground 8 9 Key 10 Signal Name Power (+5 V) DD+ Ground No Connection 50

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Intel Desktop Board DH55HC Product Guide
50
Front Panel Header
Figure 23, H shows the location of the front panel header.
Table 12 shows the pin
assignments and signal names for the front panel header.
Table 12. Front Panel Header Signal Names
Pin
Description
In/Out Pin Description
In/Out
Hard Drive Activity LED
Power LED
1
Hard disk LED pull-up to +5 V Out
2
Front panel LED+
Out
3
Hard disk active LED
Out
4
Front panel LED-
Out
Reset Switch
On/Off Switch
5
Ground
6
Power switch
In
7
Reset switch
In
8
Ground
Power
Not Connected
9
Power
Out
10
No pin
NOTE
When connecting individual wires from your chassis front panel to the front panel
header, be sure to observe the connection polarity.
Positive wires are usually
solid color and negative wires are usually white or striped.
Front Panel USB 2.0 Headers
Figure 23, I shows the location of the standard front panel USB 2.0 header and
Table 13 shows its pin assignments and signal names.
Table 13. USB 2.0 Header Signal Names
Pin
Signal Name
Pin
Signal Name
1
Power (+5 V)
2
Power (+5 V)
3
D-
4
D-
5
D+
6
D+
7
Ground
8
Ground
9
Key
10
No Connection