Radio Design Labs ST-ACR2

<h4>Line-Level Audio Controlled Relay - 5 to 50 s delay</h4><p>The ST-ACR2 is an Audio Controlled Relay in the STICK-ON? series. These products are designed for quick convenient installation and reliable operation in a variety of control applications. The ST-ACR2 is designed to switch on line level sources.<br /><br />Two multiturn trimmers are provided. The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between -30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold.<br /><br />The delay adjustment range for the ST-ACR2 is from 5 seconds to 50 seconds.<br /><br /><b>Features:</b><br />&bull; Switching Controlled by Audio Signal<br />&bull; Sensing of Line-Level Signal<br />&bull; Silence Sensing<br />&bull; DPDT Switching Contacts<br />&bull; Open-Collector SLAVE Output</p>