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Transformer coupled inputs and outputs are standard to eliminate the possibility of ground loops. Captive screw terminal blocks are used for the AES3-1992 input/outputs while BNC’s are used for the AES3-ID connections. A front panel switch selects between BNC and screw terminal, (AES3-ID, AES3-1992). Sample rate LED’s show three rates, 48KHz, 44.1KHz and 32KHz. An error detection LED indicates any errors on the incoming signal. An AC power switch on the front panel allows the user to turn the u