Rear panel – CNB SDF1212CD User Manual
Page 12

4 Channel DVR User Guide
12
2. REAR PANEL
Figure 2.1. Rear Panel
Rear panel connections
TITLE
Description
VIDEO IN
Four connectors for video input(NTSC/PAL).
VIDEO OUT
Composite video output in NTSC/PAL format
AUDIO IN
Four connectors for audio input(line level).
AUDIO OUT One connector for audio output(connect a headphone or a speaker).
VGA
Connector for VGA monitor
RS-232
For engineering use only
RS-485/422
For camera control use
SENSOR
Connector for sensor device connection. 4 sensors can be connected to the
equipment sensor 1, 2, 3, 4 are dedicated to Video channel 1, 2, 3, 4,
respectively. Either normal open (NO) or normal close (NC) sensor can be
selected for each sensor. Simple On/Off switching.
ALARM
Connector for alarm device connection. Provides simple On/Off switching
using relay. 0.5A/125V, 300mA/30V
LAN
RJ45 connector for LAN connection
DC12V
Apply 12V DC using the DC adaptor supplied with the equipment.
SWITCHES : NTSC/PAL, BNC/VGA Select switch
VGA
Selection of VGA monitor or Composite monitor
PAL
Video type selection of NTSC or PAL
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N
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