Description
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-ACR1 is from 0.5 seconds to 5 seconds.
Features:
- High-impedance bridging input connects across any audio line
- Input may be connected to either balanced or unbalanced sources
- Multi-turn sensitivity adjustment permits precise threshold setting
- Multi-turn DELAY control adjusts relay release delay
- Band-pass filtering yields triggering on characteristic audio spectrum
- SLAVE terminal may also be used to trigger the control inputs on various other RDL Modules
- SLAVE terminal may be used with remote switch to manually override the control circuit and turn on the relay
- SLAVE open-collector terminal allows additional relays to be added for more contacts
(RDL’s ST-LCR1 or ST-LCR2)