Samsung SNB-1000 User Manual page 21

Connecting to the I/O port box
Connect the Alarm I/O signal to the corresponding port of the rear port box.
ALARM IN : Used to connect the alarm input signal.
GND : Used for earth-grounding.
ALARM OUT : Used to connect the alarm output signal.
OUT COM : Common port where the alarm output signal is connected.
Alarm I/O Wiring Diagram
ALARM IN
GND
ALARM OUT
OUT COM
(5mA sink)
1
2
3
(30VDC 1A,
125VAC 0.5A MAX)
4
Yellow : ALARM IN
Black : GND
White : ALARM OUT
Red : OUT COM
English _21