Anywhere you need...
- Control Switching from Voice Signal
- Audio Switching Precisely Tailored for Stable, Yet Fast Switching from Voice Sources
- Switching from Mic or Line level signals
- Precise Threshold adjustment
- DPDT Switching Contacts
- Open-Collector SLAVE Output
APPLICATION: The ST-VOX1 is an Audio Controlled Relay in the group of STICK-ON series products by Radio Design Labs. These products are designed for quick, convenient installation, and reliable operation in a variety of control applications. The ST-VOX1 is specifically designed to switch reliably on voice signals.
When used in intercom or talk back applications, the ST-VOX1 may be triggered directly from an unbalanced microphone. In many such installations the microphone or other audio source must be preamplified, making the ST-VOX1 an ideal mate to work with RDL's STM-1 preamp. The unbalanced output from the STM-1 can be used to trigger the ST-VOX1, while the STM-1 balanced output is used for the audio feed.
The ST-VOX1 releases very quickly, but holds on through very short pauses in syllables common to speech. These time constants allow the design of a communications system yielding comfortable two-way conversation.
- High-impedance inputs connect across any unbalanced audio line
- Multiturn sensitivity adjustment permits precise threshold setting
- Multiturn DELAY control adjusts relay release delay
- Tight passband filtering yields triggering on voice frequencies
- SLAVE open-collector terminal allows additional relays to be added for more contacts (RDL's ST-LCR1)
- SLAVE terminal may be used with remote switch to manually override the control circuit and turn on the relay
All this is available in the unbelievable compactness and convenience of the RDL STICK-ONS. Put them right where you need them, or design them in with our optional racking kits. Anytime you need DPDT contact closures controlled by vocal audio, your solution is found in the ST-VOX!
Power supply is required.
