154.4. Setting for Transmission Audio Input from Rear ConnectorTo transmit audio input from rear connector (ACC2 connector or USB connector), set thefollowing.●"Setup TX Control" of the ARCP-590GWith the ARCP-590G, settings must be performed to transmit audio input from the rearconnector to use the on-screen [Send] button.Select "Setup TX Control" from the ARCP-590G "Tool" menu. The "Setup TX Control"window is displayed.In this window, select "ACC2/USB" in the "Except Data Mode" and the "Data Mode" of"Modulation Line", and then if transmit audio input from the ACC2 connector you select"ACC2", if transmit audio input from the USB connector you select "USB".For details, refer to the ARCP-590G help.