2-13
The features and functions of the E&M board are as follows.
yTransformer and impedance matching circuits are built in.
yIt encodes the entered analog signal into the digital signal of the PCM method where the digital
signal is decoded into the analog signal on the system through the PCM method.
yThere is separate logic to the control port of the board.
yIt has an outgoing signal control logic and incoming signal Detection logic.
Front Panel and Structure of Board
E&M Board with 8 ports