Bosch 430 User Manual

Video Recorder 430/451 Series

 Hardware setup | en

Bosch Security Systems

Installation and Operation manual

F.01U.168.054 | v2.0 | 2012.05

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.

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 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’.

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

Four video inputs with loop-through outputs

The DVR 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

Input signal: Mono RCA (CINCH), 1 Vpp, 10k ohm

Output signal: Mono RCA (CINCH), 1 Vpp, 10k ohm

Audio output and input connectors for the Advanced Recorder