Abus HDCC32500, User Manual

Page: 29 / 132

29
English
5.3. Power supply
IMPORTANT!
Before starting installation, ensure that the power supply voltage and the rated voltage of
the camera are identical.
12 V DC, barrel connector, 5.5 x 2.1 mm
The cameras require a 12 V DC power supply. The polarity of the DC voltage supply must be observed!
5.4. Connecting the video cable
In order to transmit the HD-TVI video signal from the camera to a recorder, an RG59 or RG6 type coaxial
cable with BNC connector (male) must be connected to the connection labelled 'TVI'. The cable length to
the next device must not exceed 500 m (RG6) or 300 m (RG59).
An RG59 or RG6 type coaxial cable can be connected to the analogue video output (labelled 'CVBS').
The cable length to the next device must not exceed 100 m.
To ensure optimum quality of the HD-TVI signal transmission, it is important that the cable is
neither kinked nor crushed at any point, and that its radius is adequate (min. bending radius
6 cm).
Damage to the cable or porosity as a result of ageing can have a negative impact on the
quality of the signal or image (e.g. shadowing around the edges).
5.5. Cable-controlled WDR function
The wide dynamic range function enhances the image quality in the event of high contrasts in the video
image. This camera's wide dynamic range function can be activated and deactivated via an external
contact (by on-screen display, only via ABUS HD-TVI DVR).
To activate the WDR function, connect both connections of the external contact together.
If the WDR function is not used or is controlled by the on-screen display of the HD-TVI DVR, both
contacts should be isolated to prevent short-circuit, contact with other housing parts and electrical
potential.
In case of active WDR function the analog video output is not available.