Polycom SR12 Stereo System User Manual


 
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Logic Examples
Logic Input
Contact Closure
When the contact is closed, the logic input pin (Pin 14 in this example) is driven
low (off). When the switch is open, the logic input pin will float high (on).
Typical applications may be push to mute or push to talk buttons or room
combining for changing the device settings based on the room configuration.
Remote Control
Pin 14 : Logic Input 1
Pin 25 : Ground