The speaker/microphone and control unit(s) shall be Alpha Communications® / S.T.R.™ ReliaBUS™ model TT212 or equivalent. Unit(s) shall be powered by the model SP300 ReliaBUS™ controller. All wiring to power supply/amplifier shall be low voltage Class II wiring, installed as per all federal, state, and local electrical codes.
TT212 shall be designed to mount directly into the 'TT' or 'TTM' series lobby entry panel stations. TT212 shall contain the speaker and microphone and memory circuits for up to 24 of the HT3011 handsets, all in one 'snap-in' assembly. Unit shall snap onto the panel front speaker/microphone grille.
Contractor shall observe all local and national electrical and building codes.
These Alpha Communications® / S.T.R.™ TT212 ReliaBUS™ speaker/microphone control module is used with the HT3011 series ReliaBUS™ handset stations to provide intercom amplification and power to operate the associated intercom system, and certain optional components and/or accessories, such as electric door opener(s) etc.
These TT212 speaker/microphone control modules are designed to easily mount right onto the plastic speaker/microphone grille in the 'TT' and 'TTM' series lobby entry intercom panels.
||2.375"W (61mm) x 5.25"H (134mm) x 1.50"D (39mm).|
||Adjustable Volume Control (potentiometer) built-in
||Positive Screw Terminal Connectors.