Alpha NH201TT-2 Specsheet

Product Specification Sheet A PS348 - Rev. 08/2013

NH201TT-2 Amplifier/Power Supplies

THIS SPECSHEET IS FOR A PRODUCT WHICH IS DISCONTINUED. PLEASE CONTACT US FOR ALTERNATIVE PRODUCTS.

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

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

Copyright© 1998-201 4 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.

< Previous (APS347) Next (APS349) >

NH201TT-2 Shown Less Housing

Features

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

Specifications

Dimensions:

2.375"W (61mm) x 5.25"H (134mm) x 1.50"D
(39mm)

Volume:

Adjustable Volume Control (potentiomet er) built­in

Connections: Positive Sc rew Terminal Connectors.

NH201TT-2 3-Wire Amplifier / Power Supplies

These Alpha Communications® / S.T.R.™ NH201TT- 2 series
amplifier/power supplies are used with the HT2001 series handset
stat ions to provide intercom amplificat ion and power to operate
the associated intercom syst em, and certain optional components
and/or acc essories, such as elect ric door opener(s) et c.

The NH201TT-2 powers from a 16VAC (30VA) low-voltage Class II
transformer.

The NH201TT-2 amplifier/power supplies are designed to easily
mount right onto the plastic speaker / microphone grille in the 'TT'
and 'TT M' series lobby entry intercom panels.

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.

Architects' And Engineers' Specifications

The amplifier/power supply unit(s) shall be Alpha Communications®
/ S.T.R.™ model NH201TT-2 or equivalent. Power supply unit(s)
shall operate from a U.L. Listed transformer (model SS106 or

SS146). All wiring to power supply/amplifier shall be low-

voltage Class II wiring, installed as per all federal, state, and local
elect rical codes.

Power supply/amplifier shall be designed to mount direct ly into the
'TT' or 'TTM' series lobby entry panel stat ions. Power supply /
amplifier shall contain the system 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 amplification and
signalling power for the proper system operation. Power
supply/amplifier shall be installed a safe distance from any source
of elec trical interference.

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