Asus P4S8X P4S8X User Manual - Page 48

Hardware information, Chassis Open Alarm Lead 4-1 pin CHASSIS, IEEE-1394 Header 8-pin

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18. IEEE-1394 Header (8-pin IEEE1394_2) (Optional) This header supports an IEEE-1394 serial connector cable set that mounts to a standard expansion slot in the computer case. 1394-compliant internal fixed disk drives may also be connected to these headers. Ground Ground TPA2+ TPA2TPB2+ TPB2Ground +12V P4S8X ® P4S8X 1394 Headers IEEE1394_2 19. Chassis Open Alarm Lead (4-1 pin CHASSIS) This lead is intended for a chassis designed to support intrusion detection. The lead requires an external detection mechanism such as a chassis intrusion monitor/sensor or microswitch. When any chassis component is removed, the sensor is triggered and a high-level signal is sent to this lead to record a chassis intrusion event. The event is then be processed by software such as LDCM. When not using the chassis intrusion lead, place a jumper cap over the pins to close the circuit. Removing the jumper cap will prevent the system from booting up. CHASSIS GND P4S8X Chassis Signal +5VSB_MB ® P4S8X Chassis Alarm Lead 36 Chapter 2: Hardware information

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36
Chapter 2: Hardware information
P4S8X
P4S8X 1394 Headers
IEEE1394_2
Ground
Ground
TPA2+
TPA2-
TPB2-
TPB2+
Ground
+12V
P4S8X
P4S8X
Chassis Alarm Lead
CHASSIS
+5VSB_MB
Chassis Signal
GND
19.
Chassis Open Alarm Lead (4-1 pin CHASSIS)
This lead is intended for a chassis designed to support intrusion detection.
The lead requires an external detection mechanism such as a chassis
intrusion monitor/sensor or microswitch. When any chassis component is
removed, the sensor is triggered and a high-level signal is sent to this lead to
record a chassis intrusion event.
The event is then be processed by software
such as LDCM. When not using the chassis intrusion lead, place a jumper
cap over the pins to close the circuit.
Removing the jumper cap will prevent
the system from booting up.
18. IEEE-1394 Header (8-pin IEEE1394_2) (
Optional
)
This header supports an IEEE-1394 serial connector cable set that mounts
to a standard expansion slot in the computer case.
1394-compliant internal
fixed disk drives may also be connected to these headers.