An electronic cassette is a microprocessor device, which control work of the whole doorphone system. Older models operating main and subordinate entrances had special types of electronic cassettes. CD-3100 doorphone uses one kind of electronic cassette, in which the installer defines what type of entrance it will support. Electronic cassette is supplied from the two-winding AC adapter.
It is possible to connect a battery to electronic cassette, which provides correct work of electronic cassette in case of loss of power in the grid. The electronic cassette has line balance potentiometer and INIT and RESET buttons used to restore the default settings of the cassette. EC-3100 electronic cassette is not compatible with EC-3000 and it cannot be used as its substitute.
Purpose and features of the CVR-2 distributor are exactly the same as in the case of CVR-1 one, with the difference that the CVR-2 serves as the central power supply for 4 monitors and has screw terminals instead of ARK terminals. CVR-2 distributor and monitors are powered from a stabilized power supply 15V/4A.
CVP-2 switch is used in CD-3100 doorphone in video version and it is used to switch camera images in outdoor panels. Thanks to it, on the monitor screen is displayed the image from the panel from which the calling took place. The switch is used in a multi entrance system or in the case when more than one outdoor panel is connected to the electronic cassette.
The switch has four inputs for video signal from outdoor panels and two outputs for video signals from monitors. It is equipped with a signal amplification and correction of vision. It is powered from the electronic cassette, so the two devices should be installed as close as possible.
Before the execution of the project and installation of equipment, please read the terms and conditions of installation for the video version.
MRL-1 module is used to connect several outdoor panels in the CD-3100 system to one electronic cassette. MRL-1 module provides easy connection of cables connecting the MRL-1 module with outdoor panel (a separate set of terminals is designed for each panel) and separates the connected panels and reduces noise entering to the acoustic path from the electrical installation
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