The Alpha DTSMB Speaker/Microphone Module is a high-quality audio solution designed specifically for use with digital-dial modular series door entry stations. This versatile module pairs seamlessly with 2-wire (loop) type ReliaBUS apartment handsets like the HT3011 and HT2011. With features such as a weather-resistant speaker and a long-life electret condenser microphone, the DTSMB ensures clear audio communication while also providing easy installation options.
Alpha DTSMB Speaker/Microphone Module Features
- Weather-Resistant Speaker: Ensures durability and reliability in various environmental conditions, making it suitable for both indoor and outdoor use.
- Long-Life Electret Condenser Microphone: Provides high-quality audio capture for clear communication, enhancing user experience.
- Illuminated Dry-Contact Low Voltage Light Push-Button: Offers convenient visibility and easy operation, even in low-light conditions.
- Plug-In Connector: Facilitates easy wiring, reducing installation time and complexity.
- Compact Size: Measuring 3.94″w x 3.94″h (100mm x 100mm), it fits seamlessly into your existing modular panel trim frames.
Detailed Specifications for Alpha DTSMB
| Feature | Details |
|---|---|
| Dimensions | 3.94″w x 3.94″h (100mm x 100mm) |
| Microphone Type | Long-life electret condenser |
| Speaker Type | Weather-resistant |
| Push-Button Type | Illuminated dry-contact low voltage |
| Compatibility | HT3011, HT2011 (2-wire ReliaBUS handsets only) |
| Installation | Plug-in connector for easy wiring |



















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