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  6. Voice Operated Relay - Radio Design Labs ST-VOX1
 
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Voice Operated Relay - Radio Design Labs ST-VOX1

SKU: RDLST-VOX1
Manufacturer: RDL
Not Rated Yet
MSRP: $197.22
Price: $147.92
Save $49.30 off MSRP
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Voice Operated Relay
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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.

Specifications

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 -80 dBu to -50 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 Time
Relay Contacts: 5 ms
Slave open-collector output: 3 ms
Ambient Operating Environment:
0° C to 55° C
Power Requirement:
GROUND-REFERENCED 24 Vdc @ 50 mA *
* Assumes 20 mA max load at SLAVE
output
Dimensions:
Height: 0.7 in. (1.7 cm), Width: 3 in. (7.6cm), Depth 1.6 in. (3.9 cm)
Package Type:
Cardboard Box
Package Dimensions:
2 x 2 x 4 in.
Shipping Weight:
0.2 lbs.
WEEE weight:
0.15 lbs.
Tariff code:
8543.70.9960
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