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Electronic Theatre Controls Inc

Eos Family Local Relay Out and Contact Closure Inputs

Eos Ti, Gio, Ion, Element, and Ion RPU all have local I/O ports that include a DB15 connector with four contact closures and a single relay out. For additional closures or relays, a Net3 I/O Gateway would be needed.

Pin Out.png

Additional Wiring Notes:

The contact input is looking for a 12Vdc connection.  If your contact input is a dry contact, then the console can be used to source this 12Vdc.  For example, let's say we have a dry contact for input number 1.  The wiring would be as follows:

Switch side 1 to pin 14 or 15 for 12Vdc.

Switch side 2 to pin 1.

Jumper from pin 2 to pin 12 or 13 on console for ground reference.

Analog IO Contact Drawing.png


Note: The +12VDC pins are meant only to provide voltage when using a dry contact to trigger contact inputs. They are not rated to provide current for any external device.

To use the Relay Out


[Cue][1]{Execute}{Relay}[1][/][1]{On}[Enter]  --- This will turn relay 1 in "Relay Out Group 1" on when cue 1 is fired.

[Cue][2]{Execute}{Relay}[1][/][1]{Off}[Enter] --- This will turn Relay 1 in "Relay Out Group 1" off when cue  2 is fired.


Relay setup is located in the shell.  (See photo below)

To use the Contact Closure Inputs:

Use the "Show Control Display" to setup the functionality of the inputs.

 Show Control.png

"Type" is Analog

"Source" is the Contact Closure Group #

"Address" is the Contact Closure Address within that group.

To setup the Local Relay and Contact Closure inputs:

In version 3.0 and higher

Settings can be found in Setup>System Settings>Show Control.  Choose {Contacts}


In versions 2.7.0 through 2.9.

Settings can be found in Setup>System Settings>Show Control.  Choose {Contacts}



In versions prior to v2.7.0

Exit the console to the shell. Choose Settings > Local I/O

 Local IO.png

For more information on using Analog with Eos Family, please see the Eos Operations Manual|Analog Inputs.

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