Samsung SIR-S4120R - Manual (Page 12)

2-3 2-4
DIGITAL VIDEO RECORDER
3
System Connection for Alarm Recording
4
Connection with PC for Use
<Rear Side Connection Terminal of DVR COMBO> <Outside Product>
ALARM IN
ALARM RESET
ALARM OUT
GND
TRIGGER OUT
GND
REC IN
DISK END
GND
■ Alarm recording is a function for recording the input video when an alarm signal is input
while a device with alarm output is connected to this unit.
■ Connect to the corresponding terminals, as the numbers may be different for external
devices.
■ For external devices, if the alarm input (ALARM INPUT) and alarm cancel (ALARM
CANCEL) are not available, you can leave them unconnected.
GND
TRIGGER IN
ALARM IN
ALARM CANCEL
ALARM OUT
1
1
2
3
4
5
6
7
8
9
1
2
3
4
5
2 3 4 5 6 7 8 9 1 2 3 4 5
Connection with RS-232C
A. Communication Method
● Data Code: ASCII Code
● Protocol: 8 bit Data, 1 Stop bit, None Parity
● Transmission speed: 4800, 9600, 19200, 38400, 115200 bps
B. RS-232C terminal (D-SUB 9 Pin) and Pin specifications
5 1
6 9
Pin No Pin Specifications
2 TXD (Transmitted Data)
3 RXD (Received Data)
5 SG (Signal Ground)
1, 4, 6~9 NO Connection