Control Voltage Out - Audio Technica SmartMixer AT-MX351 Installation And Operation Manual

Control Voltage Out

When a microphone channel turns "on," as indicated by a Selected Channel LED on the front
panel, the channel's associated Control Voltage Out goes "high" (+4 VDC). See chart on page
12 for pin connection. This signal can be used to light indicator lamps, switch speaker zones
on and off, select video cameras, etc. The control voltage should not be connected directly to an
inductive load such as a relay coil, as damage to the mixer may result. Several interface circuit
possibilities are shown in Figure 6 below.
Figure 6. Control interface examples.
Driving One LED
Driving One LED
2v
2v
I ≈
I ≈
R+40Ω
R+40Ω
CV
CV
R
R
G
G
13