U S E R M A N U A L DVR-4CF
DVR-4CF 
9
6.2 Rear Panel Buttons and Controls 
(1) RJ45: Internet connection terminal (optional). 
(2) Video Input [VIDEO IN]: Connect to cameras. 
(3) DC 12V (4A) [Power Input terminal]: power socket. 
(4) S-Video Output [S-VIDEO OUT]: Connect to the monitor. 
(5) Video Output [VIDEO OUT]: Connect to the monitor. 
(6) Video Loop [VIDEO LOOP]. 
(7) I/O Block [I/O BLOCK]: Terminal function description is shown below. 
No. Name  Function 
1  GND 
Ground Terminal(signal) 
2 ALARM 1 
Alarm Input Terminal 
3  GND 
Ground Terminal(signal) 
4 ALARM 2 
Alarm Input Terminal 
5  GND 
Ground Terminal(signal) 
6 ALARM 3 
Alarm Input Terminal 
7  GND 
Ground Terminal(signal) 
8 ALARM 4 
Alarm Input Terminal 
9  N.O. 
Alarm Output (Normal Open) 
10 COM 
Alarm Output Terminal (NC/ NO COM) 
11  N.C. 
Alarm Output (Normal Close) 
(8) Cooling Fan. 










