To secure the house against uninvited guests, different means – both doors, and intruder alarm, and even grids at windows are used. However sometimes the most effective way is the intercom allowing residents to solve who will enter and who will not.
Instruction
1. Before being engaged in connection of the intercom, it needs to be ordered and paid. For this purpose decide on presence of persons interested to install the intercom, separate cost into number of people and address to the relevant firm. After signing of the contract for rendering services do not forget to receive all copies of electronic identifying keys which allow to enter the house without set of any code digits.
2. If for any reason you decide to connect independently the intercom, cut niche of certain sizes in motionless part of access door. These sizes have to correspond to the sizes of the metal body in which the central block of the intercom is located, and on face side there is call panel. The niche can also be cut in building wall – in any of these cases strengthen the intercom body by means of screws or screws, screwing up them in openings on back part of the intercom.
3. Carry out in the stairwell the main wiring for each of subscriber devices, connecting them in parallel and with respect for polarity. Use standard mnogozhilnyy telephone wire of flat form for wiring.
4. Install the subscriber devices which are tube with the button of inclusion and the negotiation mechanism in each apartment and program them. Trace that the code of each tube coincided with number of the respective apartment. Then connect the main wiring to special terminals on two contact blocks in the central block.
5. Use the lowering transformer for connection of the intercom to the power supply network and when after energizing on the display the spark lights up, wait for seconds twenty. After that the intercom will be ready for operation. However do not forget to strengthen after that its front panel screws and to drill out to avoid possibility of vandalism.