Overview
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.
Features
- Switching Controlled by Voice Signal
- Switching from Mic or Line Level Signals
- Precise Threshold Adjustment
- DPDT Switching Contacts
- Open-Collector SLAVE Output
Specifications
| Mic Input | 5 k? unbalanced line |
| Line Input | 200 k? 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 | 8536.49.0050 |