The Public Address System bestowed is supposed for self governing double way messages set of connections at the industrial plants. Practically, the diverse procedure unit and off-site parts of an industrial plant will be inter connected with the Central Control Exchange room. Through this product, there are two structures or ways of communication viz. PAGE to label big area and PRIVATE to take the conversation. The essential and fundamental control exchange is a microprocessor reserved exchange. The indispensable Central control exchange is a free floor that is step up on a 19" rack. The master control station and wires from field stations are ended on the cessation PCB's and end chunks, without trouble as these are reachable from the back of the rack.
The extractable gland plate is offered at the foundation or rack base, which can be taken away or obviated. the punched holes assists in the entry of wires. All the cards or components sitting within the indoors of the rack are spread in sub racks. These cards or parts are plug in type giving a modular structure. It is very easy to attach some cards for extra expansion. The Central Control switch over is a 16 / 32 way function with Master Control components (1 No.), 24 Nos. in Zones and EPABX interface (1 no.).