Asus V3-M3N8200 - Manual (Page 62)

4-10 Chapter 4: Motherboard info
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 pin labeled “Chassis Signal” and “Ground” are shorted with
a jumper cap. Remove the jumper caps only when you intend to use the
chassis intrusion detection feature.
12. LPT connector
The LPT (Line Printing Terminal) connector supports devices such as a
printer. LPT standardizes as IEEE 1284, which is the parallel port interface on
IBM PC-compatible computers.
R
Parallel Port Connector
LPT
STB#
AF
D
PD
0
ERR#
PD
1
INIT#
PD
2
SLIN
#
PD
3
GN
D
PD
4
1
GN
D
PD
7
PD
6
PD
5
GN
D GN
D GN
D
ACK#
GN
D
BUSY PE SLCT
GN
D GN
D
R
Intrusion Connector
CHASSIS
+5VSB_MB Chassis Signal GN
D
(Default)