Alpha TT33-3 Specsheet

Product Specification Sheet A PS944 - Rev. 08/2015

TT33-3 QwikBUS™ Panel Speaker/Microphone Unit

42 Central Drive • Farmingdale • NY • 11735-1202 • Phone: [phone] • Fax: [phone]

TOLL-FREE: [phone] • Web: AlphaCommunications.com • Email: [e-mail]

Copyright© 1998-201 5 Alpha Communications® - All Rights Reserved.

Due to co ntinuous pro duct improvement, all colo rs, sizes, materials, finishes and specification s are subject to ch ange without n otice.

TT33-3 (Shown with Housing)

Architects' And Engineers' Specifications

The door ent ry panel speaker / microphone unit(s) shall be Alpha
Communications®/S.T.R.™ model# TT 33-3 QwikBUS™
or equivalent. Speaker/microphone unit(s) shall be powered from
the associated model# SP333 QwikBUS™ Intelligent Controller
unit(s). All wiring to speaker/mic rophone shall be low- voltage Class
II wiring, installed as per all federal, state, and local electrical and
building codes.

Speaker/microphone unit(s) shall be designed to mount direc tly
behind the fac eplate in various models of pushbutton st yle Alpha
Communications® lobby entry intercom panels.

Speaker/microphone unit(s) shall feature a built-in door release
relay, voice volume c ontrol potentiometer and a plug-in connector
for connection to t he model# E32 32 station 2-wire extender(s),
as needed (maximum 3 per system).

Contract or shall observe all local and national electrical and
building codes.

TT33-3 QwikBUS™ Panel Speaker/Microphone Unit

The Alpha Communicat ions® / S.T.R.™ T T33-3 QwikBUS™ Panel
Speaker/Microphone units are used with the S.T.R.™ QwikBUS™
systems to provide intercom functions at remote door entry
locat ions, and depending on system configuration, optional elec tric
door opener(s) etc .

The TT33-3 powers from the assoc iated model# SP333 QwikBUS™
Intelligent Controller unit(s), and does not require any additional
power supply unit(s). When used with conventional pushbutton
type door entry st ations where electric door release is required,
the TT33-3 will also require a model# T1240 U.L. Listed 12VAC
plug-in transformer.

The TT33-3 speaker/mic rophones are designed to easily mount
right behind t he fac eplate in various models of our lobby entry
pushbutton style intercom panels.

The TT33-3 speaker/mic rophones also feature a built-in door
release relay, voice volume c ontrol potentiometer and a plug-in
connector for connec tion to the model# E32 32 station 2-wire
extender(s).

The PC boards are treated with a special c hemical finish, t o
minimize t he affect s of weather and moisture on the elect ronic
components.

Features

Easily Installs Right Behind Lobby Entry Panel
Operates on Safe Low- Voltage Class II Wiring
Clear Voice Fidelity with Adjustable Voice Volume Controls
Convenient Screw Terminal Connec tions
High quality Half-Duplex Voice Communications

Specifications

Dimensions:

3.375"W (86mm) x 5.625"H (143mm)
x 1.25"D (32mm).

Volume:

Built-In Adjustable Volume Controls
(potentiomet ers) for L/S and Mic

Connections: Positive Sc rew Terminal Connectors.