10
2.2
VIDEO INPUTS/OUTPUTS INSTALLATION
Camera and CCTV monitor must use 75 Ohm video cable (e.g. RG-59, RG-6, RG-11) with BNC connectors.
Due to inappropriate absorbability, 50 Ohm coax cable (e.g. RG-58), antenna cable and other types of
coaxial cable are not compatible.
All connected video sources must provide a 1 Vpp NTSC or PAL standard video signal.
When converting transmission lines (twisted pair, fibre optics, radio) to the video inputs, be sure to verify
accurate receiver calibration.
ATTENTION:
In order for the system to auto-detect the appropriate video format (NTSC or PAL), make
sure that there is a video signal on video input 1 upon power-up.
2.3
AUDIO INSTALLATION
The ELR DVR provides 1 audio input and 1 audio output.
The input is designed for max. 500 mV to 10 KOhm line audio signals.
ATTENTION:
The direct connection of a non-amplified microphone is not supported (a microphone
amplifier is required).
The installation must be done with audio coax cable and RCA plugs.
The output provides a max. 500 mV to 10 KOhm line audio signal and may be connected to a monitor‘s
audio input. The direct connection of passive speakers is not supported.
AUDIO RECORDING FUNCTIONALITY:
Audio recording is activated / deactivated in the RECORD menu.
Audio channel is always recorded together with video and is independent of the image recording rate.
There is no specific camera allocation.
2.4
ALARM CONTACTS INSTALLATION
The ELR alarm inputs can be used for recording start or recording rate adjustment. Furthermore, alarm
reactions such as camera switching to monitors, buzzer, e-mail and network alarm are available. 4 alarm
output relays can be switched if required.
Additionally the ELR DVR provides 4 x TTL - level control outputs with similar functionality as the relay
outputs.
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