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SIDE PANEL LAYOUT
1. External control input
This 3.5mm (TRS) jack connector allows an external switch to trigger the talk
functionality. The switch must connect the Tip and Ring to Sleeve; bridging tip (T)
to sleeve (S - GND) will activate the channel 1 circuit and bridging ring (R) to
sleeve (S
– GND) will activate the channel 2 circuit (if using a Beatrice B2).
External talk switch input