Intel DH55HC Product Guide - Page 49

Chassis Intrusion Header, Intel® RPAT Header, Alternate Front Panel Power LED Header

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Installing and Replacing Desktop Board Components Pin Standard Signal Name ECP Signal Name 23 PERROR PE, ACKREVERSE# 24 GROUND GROUND 25 SELECT SELECT 26 KEY (no pin) KEY (no pin) EPP Signal Name PE GROUND SELECT KEY (no pin) Chassis Intrusion Header Figure 23, E shows the location of the chassis intrusion header. This header can be connected to a mechanical switch on the chassis to detect if the chassis cover is removed. This switch should be in the open position when the chassis cover is installed and closed when the cover is removed. Table 9 shows the pin assignments and signal names for the chassis intrusion header. Table 9. Chassis Intrusion Header Signal Names Pin Description 1 Intruder# 2 Ground Intel® RPAT Header Figure 23, F shows the location of the Intel RPAT header. Table 10 shows the pin assignments and signal names for the Intel RPAT header. Table 10. Intel RPAT Header Signal Names Pin Description 1 RPAT# 2 Ground Alternate Front Panel Power LED Header Figure 23, G shows the location of the alternate front panel power LED header. Pins 1 and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header. If your chassis has a three-pin power LED cable, connect it to this header. Table 11 shows the pin assignments for the alternate front panel header. Table 11. Alternate Front Panel Power LED Header Signal Names Pin Signal Name 1 Front panel LED+ 2 No pin 3 Front panel LED- In/Out Out Out 49

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Installing and Replacing Desktop Board Components
49
Pin
Standard Signal Name
ECP Signal Name
EPP Signal Name
23
PERROR
PE, ACKREVERSE#
PE
24
GROUND
GROUND
GROUND
25
SELECT
SELECT
SELECT
26
KEY (no pin)
KEY (no pin)
KEY (no pin)
Chassis Intrusion Header
Figure 23, E shows the location of the chassis intrusion header.
This header can be
connected to a mechanical switch on the chassis to detect if the chassis cover is
removed.
This switch should be in the open position when the chassis cover is
installed and closed when the cover is removed.
Table 9 shows the pin assignments and signal names for the chassis intrusion header.
Table 9. Chassis Intrusion Header Signal Names
Pin
Description
1
Intruder#
2
Ground
Intel
®
RPAT Header
Figure 23, F shows the location of the Intel RPAT header.
Table 10 shows the pin
assignments and signal names for the Intel RPAT header.
Table 10. Intel RPAT Header Signal Names
Pin
Description
1
RPAT#
2
Ground
Alternate Front Panel Power LED Header
Figure 23, G shows the location of the alternate front panel power LED header.
Pins 1
and 3 of this header duplicate the signals on pins 2 and 4 of the front panel header.
If
your chassis has a three-pin power LED cable, connect it to this header.
Table 11
shows the pin assignments for the alternate front panel header.
Table 11. Alternate Front Panel Power LED Header Signal Names
Pin
Signal Name
In/Out
1
Front panel LED+
Out
2
No pin
3
Front panel LED-
Out