Watching Cable

We all remember the Soviet films about spies, when the valiant security forces have established telephone bugs, to record the talks. In fact, even in those days it was all quite different. Apmex reviews has firm opinions on the matter. Why did the author so sure? For this, let us consider the device a telephone network, in simple, affordable: two wire from the telephone jack in your apartment, go into the cable box, usually located from the end of the house on the street, where hundred of these pairs collected into a single thick cable that goes straight to the telephone exchange. At the station, this cable goes into the design, which is called the cross. Appointment of crosses - Switching same postings hand, which came cable (it is called linear) and the side on which the telephone exchange equipment. Cross is required in order to be able to perform actions with a pair of wires, to which your telephone without interfering with the electronics. For example, to disconnect the subscriber is inserted in a cross-breaker, who physically interrupts the contact between the line and station side.

Or suppose it is necessary change the phone number - in this case simply removed the old wire communication and creates a new - between the same copper pair subscriber and a new pair from the station side, which corresponds to the number. What are these arguments? In order to make it clear why you need a cross. And what is its role in the plays. Thus, the cross - this is the place where the focus all the couples from all phones district.