Bosch DVR-451-04A050 Operation Manual - Page 21

Hardware setup

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Video Recorder 400 Series Hardware setup | en 21 4 4.1 Hardware setup This chapter contains detailed information about the hardware installation and connection of external equipment to the unit. The connector types and their pin signals are described. Most of the connectors are located at the rear panel of the unit. For convenience, one USB port is located on the front of the unit to connect a mouse or memory device. All the input/output ports are Safety Extra Low Voltage (SELV) circuits. SELV circuits should only be connected to other SELV circuits. Camera connections Connect cameras to the VIDEO IN connectors on the back of the unit using 75 ohm video coaxial cables with BNC connectors. Optionally, this signal can be looped through to other equipment via the corresponding VIDEO OUT connector. The camera input connectors are auto-terminating. There is no need to add a terminator to the output connector if no additional equipment is connected. If the camera signal is looped through to additional equipment, make sure that the end of the video connection is terminated with 75 ohm termination. The DVR 400 Series automatically configures itself as a PAL or NTSC unit. The unit determines the standard by detecting the signal format of the VIDEO IN 1 during startup. The unit can also be manually set to PAL or NTSC in the 'Camera menu' under 'Video format'. Specifications Input signal: Composite video 1 Vpp, 75 ohm Color standard: PAL/NTSC, auto-detect Gain control: Automatic gain control for each video input Connector type: BNC looped-through, automatic termination 4.2 Figure 4.1 Four video inputs with loop-through outputs Audio connections The DVR 400 Series supports up to 4 audio inputs and 1 audio output. Connect using audio cable with RCA (CINCH) compatible connectors. - 4 audio inputs are provided on the Advanced Recorder - 1 audio input is provided on the Basic Recorder Specifications Input signal: Mono RCA (CINCH), 1 Vpp, 10k ohm Output signal: Mono RCA (CINCH), 1 Vpp, 10k ohm Figure 4.2 Audio output and input connectors for the Advanced Recorder Bosch Security Systems Installation and Operation manual F.01U.168.054 | v1.1 | 2010.06

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Video Recorder 400 Series
Hardware setup | en
21
Bosch Security Systems
Installation and Operation manual
F.01U.168.054 | v1.1 | 2010.06
4
Hardware setup
This chapter contains detailed information about the hardware installation and connection of
external equipment to the unit. The connector types and their pin signals are described. Most
of the connectors are located at the rear panel of the unit. For convenience, one USB port is
located on the front of the unit to connect a mouse or memory device.
All the input/output ports are Safety Extra Low Voltage (SELV) circuits. SELV circuits should
only be connected to other SELV circuits.
4.1
Camera connections
Connect cameras to the
VIDEO IN
connectors on the back of the unit using 75 ohm video
coaxial cables with BNC connectors. Optionally, this signal can be looped through to other
equipment via the corresponding
VIDEO OUT
connector. The camera input connectors are
auto-terminating. There is no need to add a terminator to the output connector if no
additional equipment is connected.
If the camera signal is looped through to additional equipment, make sure that the end of the
video connection is terminated with 75 ohm termination.
The DVR 400 Series automatically configures itself as a PAL or NTSC unit. The unit determines
the standard by detecting the signal format of the VIDEO IN 1 during startup. The unit can also
be manually set to PAL or NTSC in the ‘Camera menu’ under ‘Video format’.
Specifications
Input signal: Composite video 1 Vpp, 75 ohm
Color standard: PAL/NTSC, auto-detect
Gain control: Automatic gain control for each video input
Connector type: BNC looped-through, automatic termination
Figure 4.1
Four video inputs with loop-through outputs
4.2
Audio connections
The DVR 400 Series supports up to 4 audio inputs and 1 audio output. Connect using audio
cable with RCA (CINCH) compatible connectors.
–
4 audio inputs are provided on the Advanced Recorder
–
1 audio input is provided on the Basic Recorder
Specifications
Input signal: Mono RCA (CINCH), 1 Vpp, 10k ohm
Output signal: Mono RCA (CINCH), 1 Vpp, 10k ohm
Figure 4.2
Audio output and input connectors for the Advanced Recorder