Alpha TT212 Speaker/Microphone Control Module

These Alpha Communications® / S.T.R.™ TT212 ReliaBUS™ speaker/microphone control module is used with the HT3011 series handset stations to provide intercom amplification and power operate associated system, certain optional components and/or accessories, such as electric door opener(s) etc.

The in conjunction SP300 controller.

These modules are designed easily mount right onto plastic grille 'TT' 'TTM' lobby entry panels.

The can accommodate up 24 of handsets, when conventional push-button type station(s).

• Easily Installs Behind Panel
• Operates on Safe Low-Voltage Class II Wiring
• Clear Voice Fidelity Adjustable Volume Control
• Convenient Screw Terminal Connections