The ST-ACR1 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-ACR1 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 thresholdThe delay adjustment range for the ST-ACR1 is from 0.5 seconds to 5 seconds.
Switching Controlled by Audio Signal
Sensing of Line-Level Signal
Silence Sensing
DPDT Switching Contacts
Open-Collector SLAVE Output
Operating Temperature (Maximum):
131 F
Operating Temperature (Minimum):
32 F
Depth:
0.65 in
Height:
1.50 in
Width:
3 in
Audio Input:
10 k Ohms balanced bridging
Input Connections:
May be connected balanced or unbalanced
Control Output:
Open-collector @ 25 mA suitable to drive indicators or slave LCR relay
Indicators:
Audio threshold LED (for setting sensitivity)
Retrigger Delay:
250 ms
Contacts:
Double-pole-double-throw
Max. Switching Power:
60 W (220 Vdc,125 Vac, 2A)
Activation Response Time:
25 ms
Input Sensitivity:
-30 to 0 dBu (adjustable)
Relay Release Delay:
0.5 to 5 Sec nominal (adjustable)
Power Requirement:
24 to 33 Vdc @ 50 mA (Assumes 20 mA max load at SLAVE output)