Diagram Of The Modern Telephone. Drag the border modern 1 shape to the drawing page. In order to understand the many concepts represented in the public switched telephone network pstn it is helpful to review the processes that take place in the making of a single call on a traditional wired telephone.
Here is a diagram of a typical telephone with its external parts labeled. Telephone telephone or fixed phone is communication device that can connect two users to make a conversation when they are in different places. A master socket contains a 18µf capacitor to pass ringing current to the.
A modern telephone also includes a bell so it can ring and a touch tone keypad and frequency generator.
Figure 2 the telephone device power supply bridge located in the local exchange in figure 2 can be noticed the capacitances c2 µf having the role to separate the circuits of the exchange from the dc supply voltage. The modern telephone is the result of work of many people9 alexander graham bell was however the first to patent the telephone as an the circuit diagram30 of the model 102 shows the direct connection of the receiver to the line while the transmitter. Figure 2 the telephone device power supply bridge located in the local exchange in figure 2 can be noticed the capacitances c2 µf having the role to separate the circuits of the exchange from the dc supply voltage. A traditional landline telephone system also known as plain old telephone service pots commonly carries both control and audio signals on the same twisted pair c in diagram of insulated wires the telephone line.