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1-36 Chapter 1: Product introduction
11. Chassis intrusion connector (4-1 pin CHASSIS)
This connector is for a chassis-mounted intrusion detection sensor or switch.
Connect one end of the chassis intrusion sensor or switch cable to this
connector. The chassis intrusion sensor or switch sends a high-level signal to
this connector when a chassis component is removed or replaced. The signal
is then generated as a chassis intrusion event.
By default, the pins labeled “Chassis Signal” and “GND” are shorted with
a jumper cap. Remove the jumper caps only when you intend to use the
chassis intrusion detection feature.
M3A78-EM
Intrusion Connector
R
M3A78-EM
CHASSIS
+5VSB_MB
Chassis Signal
GND
(Default)
12. IEEE 1394a port connector (10-1 pin IE1394_1)
This connector is for a IEEE 1394a port. Connect the IEEE 1394a module
cable to this connector, then install the module to a slot opening at the back
of the system chassis.
M3A78-EM
IEEE 1394a Connector
R
M3A78-EM
IE1394_1
GND
+12V
TPB1-
GND
TPA1-
+12V
TPB1+
GND
TPA1+
1