Extron electronic MPA 401 manual Remote Input Port, Wiring for remote control

Remote Input Port

ERemote input port — This 3-pin, captive screw port allows a wall‑mounted audio controller to control volume and mute levels remotely (see Remote Control Options on page 12 if using a MediaLink controller).

NOTE: The remote control port may be labeled in one of two ways (see the diagram to the right). The wiring and function are the same whichever way the product is labeled.

REMOTE		10V		50mA
10V	50mA		VOL/MUTE

V C G REMOTE

Wiring for remote control

Options for remote control include the Extron VC 50, VCM 100 AAP, VCM 100 MAAP, VCM 200 series, and MLA VC10 Plus. For information about part numbers, see www.extron.com. Third party 10k potentiometer volume controllers can also be connected to this port.

Figure 4 and the instructions below, show the wiring for the VCM 100 MAAP. Wiring other remote control connectors is similar.

REMOTE

10V 50mA

V C G

10 V (Pin 1)

Volume Pot 10K Ohms

2K	Vol/Mute
	(Pin 2)

Mute

Switch

GND (Pin 3)

Figure 4. Remote Control Wiring

•Pin 1 is 10 VDC reference voltage.

•Pin 2 (Vol/Mute) can be used as a variable voltage input between 0 and 10 VDC, with 0 V giving full attenuation and 10 V giving maximum volume. It can also be used for remote control muting. Sound is muted while the mute pin is shorted to ground.

•Pin 3 is ground.

NOTE: All nominal levels are at ± 10%.

MPA 401-70V and MPA 401-100V • Rear Panel and Cabling 7