User Manual

N5105I-IM-A R2.0
2-18
11. Chassis intrusion header (4-1 pin_CHASSIS)
This header 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 low-level signal
to this connector when a chassis component is installed. The signal is then
generated as a chassis intrusion event.
PIN 1
GND
O_CASEOPEN
+5VSB_ATX
CHASSIS
Connector type
HEADER 4p, K2, 2.54mm pitch
12. Speaker header (4-pin SPEAKER)
The 4-pin header is for the chassis-mounted system warning speaker. The
speaker allows you to hear system beeps and warnings.
PIN 1
+5V_SPKO
GND
GND
SPKO
SPEAKER
Connector type
HEADER 1x4p, 2.54mm pitch, S/T