Valcom Enhanced Network Station Port

you [Music] telephone ports are connections found on telephone systems and on telephones that allow you to plug them into each other or for our purposes here at Val comm to plug an overhead paging system into a telephone system this allows the user to pick up a phone dial a specific code and make a page over the paging system in this application different types of telephone ports perform different functions to understand the difference in these ports we need to understand the functions of a telephone system for our example we'll look at a common telephone system located at the phone company the two wires that run to your house and the telephone that is plugged into the phone jack connected to these two wires on the two wires from the phone company to your house negative 48 volts DC is applied this is known as battery feed when your telephone is idle or on hook the circuit is open when y