The Alpha TTE33-3 AlphaEntry QwikBUS Panel Speaker/Microphone Unit is a weatherproof communication device designed for use with AlphaEntry systems. It provides intercom functionality at remote door entry points and supports optional electric door opener controls depending on system setup.
Powered by the SP333 Intelligent Controller, the TTE33-3 does not require a separate power supply. The unit mounts behind a variety of Alpha touchscreen or pushbutton station faceplates. It includes a built-in voice volume control and a plug-in connector for E32 32-station two-wire extenders.
The circuit boards feature a special chemical finish that protects against moisture and weather exposure. Installation is straightforward with convenient screw terminal connections and low-voltage Class II wiring. This half-duplex speaker/microphone system delivers clear audio quality for reliable communication.
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