Shure Microflex MX396 Handbuch Seite 7

Logic Mute Control (Automatic Mixing)
Set DIP Switch 3 up to configure the microphone for logic control applications where audio from the microphone is muted by an external device, such
as an automatic mixer. In this mode, the local mute function of the PUSH button is bypassed (the microphone always sends audio) and the LED does not
respond directly from pushing the button.
As required by the installation specifications, wire the SWITCH OUT conductor in the microphone cable to the automatic mixer or other TTL logic de-
vice. When the talker presses the button on the microphone, it changes the voltage level at the SWITCH OUT conductor, which signals the device to
mute audio for that channel or perform some other function.
To control the LED on the microphone, wire the LED IN conductor to the gate output on the automatic mixer (or any TTL logic device).
Button Configuration
For logic control operation, DIP Switch 1 determines the button behavior (DIP Switch 2 has no effect).
Button Behavior
Momentary: When pushed, SWITCH OUT (red
wire) falls to 0 V. When released, SWITCH OUT
returns to +5 V.
Toggle: Push and release sets SWITCH OUT
to 0 V. Push again to toggle back to +5 V.
Controlling the LED Using Logic LED IN
When configured for logic mute control, connect the LED IN conductors to an external switch, relay, or a TTL gate (gate out)
on an automatic mixer.
• The LED illuminates green when the MX396 LED IN is grounded (black wire connected to the bare silver wire).
• The LED illuminates red when LED IN is lifted (black wire is NOT connected to the bare silver wire).
DIP Switch Setting
7