2 rear panel buttons and controls, Anel, Uttons and – Speco Technologies DVR-4CF User Manual
Page 10: Ontrols
DVR-4CF
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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.