"Custom Button" on E21A/V

Audio/Video Intercom
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"Custom Button" on E21A/V

Postby Akuvox_Terry » Mon Feb 05, 2018 11:17 am

"Custom Button" is used to connect an exit push button to open the relay A or B inside.
note: there is no distinction between positive and negative on this port.

custom button.png

custom button.jpg
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