Samsung SRN-470D - Connecting the Alarm Input;Output

22_ connecting with other device
connecting with other device
CONNECTING THE ALARM INPUT/OUTPUT
The Alarm In/Out port at the back is composed of the following.
SRN-470D
• ALARM IN 1 ~ 4 : Alarm Input Port
• ALARM OUT 1 ~ 2 : Alarm Output Port
com
ALARM OUT
(30VDC 2A,
125VAC 0.5A MAX)
ALARM IN
(5mA sink)
Alarm
Sensors
Open collector
output device
Mechanical
switch
I/O
1.2KΩ
GND
VDD
GND
or