RDL ST-ACR2 Line-Level Audio Controlled Relay 5 to 50 s Delay

Line-Level Audio Controlled Relay - 5 to 50 s Delay 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. 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. The delay adjustment range for the ST-ACR2 is from 5 seconds to 50 seconds.Features: Switching Controlled by Audio Signal Sensing of Line-Level Signal Silence Sensing DPDT Switching Contacts Open-Collector SLAVE Output Specifications: Audio Input:10 kΩ balanced bridging Input Connections:May be connected balanced or unbalanced Control OutputOpen-collector @ 25 mA suitable t