Alpha NH209TT-3 Specsheet

Product Specification Sheet APS837 - Rev. 07/2013

NH209TT-3 Amplifier/Power SuppliesNH209TT-3 Amplifier/Power Supplies

387 CANAL STREET • NEW YORK • NY • 10013-1615 • Phone: [phone] • Fax: [phone] CANAL STREET • NEW YORK • NY • 10013-1615 • Phone: [phone] • Fax: [phone]

Web: www.canalalarm.comWeb: www.canalalarm.com

Copyright © 1998-2 017 Alpha Communication s® - All Righ ts Reserved.

Due to c ontinuo us product i mprovement, all col ors, sizes, materials, finishes and sp ecifications are subject to change witho ut not ice.

NH209TT-3 (Shown with Housing)NH209TT-3 (Shown with Housing)

Architects' And Engineers' SpecificationsArchitects' And Engineers' Specifications

The amplifier/power supply unit(s) shall be Alpha Communicat ions®
/ S.T .R.™ model NH209TT- 3 or equivalent. Power supply unit(s)
shall operate from a U.L. Listed transformer (model T1240). All
wiring to power supply/amplifier shall be low- voltage Class
II wiring, installed as per all federal, stat e, and local elec trical
codes.

Power supply/amplifier shall be designed to mount directly into the
'TT' or 'TTM' series lobby entry panel stations. Power
supply/amplifier shall contain the syst em amplifier, power supply,
speaker and microphone, all in one 'snap-in' assembly. Unit shall
snap onto the panel front speaker/microphone grille.

Power supply/amplifier shall provide the intercom amplificat ion and
signalling power for the proper syst em operation. Power
supply/amplifier shall be installed a safe distance from any source
of elec trical interference.

Contractor shall observe all local and national electrical and
building codes.

NH209TT-3 2-Wire Amplifier / Power SuppliesNH209TT-3 2-Wire Amplifier / Power Supplies

The Alpha Communicat ions® / S.T .R.™ NH209TT-3 series
amplifier/power supplies are used with the HT3009 and/or HT2009
series handset stat ions to provide intercom amplification
and power to operate the associated interc om system, and certain
optional components and/or ac cessories, suc h as electric door
opener(s) etc.

The NH209TT- 3 powers from a 12VAC (40VA) low-voltage Class II
transformer.

The NH209TT- 3 power supplies are designed to easily mount right
onto t he plastic speaker/microphone grille in the 'TT ' and 'TT M'
series lobby entry interc om panels.

The PC boards are treated with a spec ial chemical finish, to
minimize the affec ts of weather and moisture on the elect ronic
components.

FeaturesFeatures

Easily Installs Right Behind Lobby Entry Panel
Operates on Safe Low- Voltage Class II Wiring
Clear Voice Fidelity with Adjustable Voice Volume Control
Convenient Sc rew Terminal Connect ions
High quality Half-Duplex Voice Communicat ions

SpecificationsSpecifications

Dimensions:

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

Volume:

Built-In Adjustable Volume Control
(potentiometer).

Connections: Positive Sc rew T erminal Connectors.