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Voice Operated Relay

Voice Operated Relay

Part #: ST-VOX1   Manufacturer: Radio Design Labs

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Retail: $129.26
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Product Description

The ST-VOX1 is an Audio Controlled Relay in the STICK-ON® series. When used in intercom or talkback 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 the 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.

Mic Input:5 kΩ unbalanced line
Line Input:200 kΩ unbalanced
Control Outputs:Open-Collector @ 25 mA, suitable to drive indicators or Slave LCR
Relay Contacts:Double-pole-double-throw
Max. Switching Power:60 W, (220 Vdc, 125 Vac, 2A)
Mic Input Sensitivity:Adjustable -75 dBu to -25 dBu
Line Input Sensitivity:Adjustable -45 dBu to -15 dBu
Indicators:Audio threshold LED (for setting sensitivity)
Retrigger Delay:50 ms
Release Delay Time Adjustment Range:Relay Contacts: 70 to 260 ms
Slave open-collector output: 15 to 260 ms
Activation Response TimeRelay Contacts: 5 ms
Slave open-collector output: 3 ms
Power Requirement:GROUND-REFERENCED 24 to 33 Vdc @ 50 mA *
* Assumes 20 mA max load at SLAVE
output
Ambient Operating Environment:0° C to 55° C

Additional Information

Manufacturer: Radio Design Labs
Part#: ST-VOX1
Unit: Each
Carton: 1

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