Dip Switches; Wiring Diagram - Shure Microflex MX418D User Manual

DIP Switches

NOTE: Bottom
cover must
be closed for
microphone to
function.
Use the DIP switches to configure logic settings
and mute button behavior.
The DIP switches are covered with a piece of
clear tape at the factory. Remove tape to modify
the switch settings.
OFF (factory ON
default)
1 Momentary Toggle
2 Push-to-mute Push-to-talk
3 Mute button enabled, Disable mute button
LED illuminates when (microphone always
mic is active on), logic controls
LED
4 -- --

Wiring Diagram

NOTE: Audio and logic ground are connected at
microphone base.
Audio – (Black)
Audio + (Red)
LED IN (Orange)
SWITCH OUT (White)
Ground (Green)
Mute Button Configuration
Use DIP switches 1 and 2 to configure the mute
button, as follows.
Be sure to set DIP switch 3 off (factory default)
so that the mute button controls audio from the
microphone.
Switch Function DIP Switch Setting
Momentary: push-to-mute
(as shipped).
Momentary: push-to-talk
Toggle: (Push On/Push
Off): Mic is active when
powered on
Toggle: (Push On/Push
Off): Mic is mute when
powered on
Connecting to an Automatic Mixer
Use these settings if connecting the microphone
to an automatic mixer or other device that mutes
audio and controls the LED.
1. Connect logic leads to the automatic mixer.
Connect the LED IN to the gate output to illumi-
nate the LED when that channel is gated on.
2. Set DIP switch 3 on. This disbles the mute but-
ton (the microphone passes audio regardless of
whether the button is pressed or not).
3. Set DIP switch 1 to configure how the mute but-
ton sends SWITCH OUT logic:
Momentary:
push = 0 Vdc,
release = 5 Vdc
Green (LOGIC GROUND): Connects to the logic
ground of an automatic mixer, switcher, or other
equipment.
Orange (LED IN): Set DIP switch 3 on to use LED
IN. When shorted to LOGIC GROUND, the LED
turns on.
White (SWITCH OUT): Provides TTL logic (0 Vdc
or 5 Vdc) in response to the mute button. Set DIP
switch 1 for momentary or toggle. When phantom
power is applied, logic initializes high (5 Vdc). DIP
switch 2 has no effect on SWITCH OUT.
Changing SWITCH OUT to Always
Use the following modification in situations where
your logic interface requires momentary closure
of the SWITCH OUT, but you want the mute but-
ton to toggle the microphone (DIP switch 1 ON, 3
OFF):
1. Access the circuit board in-
side the microphone base.
2. Remove the resistor at R45
and reinstall it at location
R46.
Toggle:
initial = 5 Vdc,
push = 0 Vdc
Logic Wiring
Momentary
3