
Product Specification Sheet A PS862 - Rev. 11/2013
HT333 Series AlphaEntry™/QwikBUS™ Concierge Handsets
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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.
HT333A (Ant hracite ) Handset shown with
optiona l UM3004A  Flush A dapt er and Trim
Ring and HT333W (White) Handse t shown
with optional TZ1003WH De sk A dapte r
Architects' And Engineers' Specifications
The 2- Wire Concierge Handset St ation(s) shall be Alpha 
Communications® / S.T.R.™ AlphaEntry™/QwikBUS™ HT333 
Series AlphaEntry™/QwikBUS™ handset s or approved equal.
Handset (s) shall be finished in (White, T itanium or Anthracite) 
color. 
Handset (s) shall be used with the corresponding WINPC series (or 
equivalent) AlphaEntry™ PC Mast er Station(s).
Handset (s) shall be mounted (surface, flush or desktop) with 
appropriate adapter(s) as needed. Handset(s) shall feature 
elect ret c ondenser microphone for exceptional voice fidelity. 
Handset s that include carbon transmitt er or other older voice 
tec hnologies shall not be ac ceptable. Handset shall have a 
textured finish and heavy- duty coil c ord. Handset shall include a 
(KEY SYMBOL) push button and auxiliary (ROUND DOT) push 
button, as well an an LED indicator button. Push buttons shall be 
clearly visible and shall be marked in a different color. Handset(s) 
shall include a built- in elect ronic c all tone signal. Handset(s) shall 
require only two (2) c ommon (loop) wires for system operation.
Contract or shall observe all local and national electrical 
and building codes.
HT333 Series AlphaEntry™/QwikBUS™ Concierge
Handsets
The Alpha Communicat ions® / S.T.R.™ HT333 Series AlphaEntry™ 
/QwikBUS™ handsets are designed to work as a Concierge (front 
desk) handset in c onjunction with an AlphaEntry™ WINPC series 
PC Master Stat ion. All HT333 handsets require only t wo (2) 
common (loop) wires! Choose from White, Titanium (Silver/Grey) or 
Anthracite (Charcoal) c olors.
These att ractive handsets easily surface mount right on t he wall 
or over a single gang flush elect rical back box (or plaster ring). 
Handset s c an be c hanged to desk mount with the addition of a 
model TZ1003 desk adapter, or c an be flush mounted with t he 
addition of a Model UM3004 flush housing/trim assembly.
All HT333 series AlphaEntry™/QwikBUS™ handsets feature 
textured finish (to minimize sc ratc hes and fingerprints), electronic 
tone signaling, heavy duty replaceable c oiled cord and (3) three 
momentary button switches. These switches can be used for 
handset programming, or other signaling func tions, depending upon 
system c onfiguration, as well as LED indication.
Features
Crystal Clear Half- Duplex or Enhanced Half-Duplex Voice 
Operation (depending on system components being used) 
Easy Installation - Only 2 Common (loop) Wires Required 
Eavesdrop Privacy 
Clear Voice Fidelity using Elect ret Condenser Microphones 
Rugged and Reliable / Simple to Operate 
Mounts Flush, Surface or Desk (with opt ional adapters) 
Available in White, Titanium (Silver/Grey) or 
Anthracite (Charcoal) c olor
Specifications
Dimensions:
All HT333 series handsets are 3.75"W 
(96mm) x 8.75"H (223mm) x 2.60"D 
(67mm). All dimensions shown are for the 
surface wall type handset, less the 
coiled c ord.
Microphone: Electret Condenser Type
Push Buttons:
(1) with (KEY SYMBOL) and (1) 
Programming (Round Dot), and (1) LED 
indicator