Extron-electronics MVC 121 Plus User Guide Manuale Utente Scaricare il pdf (Pagina 20)

Digital Input Port

The three-pin digital input port (Digi In) is used to monitor or drive TTL level digital signals.

The port consists of three input pins with the fourth pin being used as a ground providing

three inputs total. The DSP Configurator software provides a selection of functions from a

list, to be loaded to the MVC 121 Plus.

NOTE: The digital input connectors are used to mute or unmute the input signal using

a contact closure device. SIS programming commands cannot mute or unmute

the input signal while the digital input ports are connected. The digital input

ports are “off” and not configured by default.

1. From the main structure menu, click Tools > Configure Digital Inputs to access the

Config utility.

2. Select the digital input to configure.

MVC 121 Plus • Operation 14

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Extron-electronics MVC 121 Plus User Guide Manuale Utente Pagina 20