2 to 4 Wire Audio Interface Unit is used to interface bi-directional voice lines to a fibre optic multiplexer system which requires 4 wires inputs. The Audio Interface Unit is configured to interface 2 wire high signal low impedance termination for a 4 wire conversion and vice versa. The Audio Interface Unit feeds 2 wire audio to the 8 channel communication network wired with copper cable medium. 2 to 4 Wire Audio Interface Unit can be availed in two models such as 4 Wire Tx and 4 Wire Rx.
