Model #: NH201TT-2
Spec Sheet Preview: These Alpha Communications® / S.T.R.™  NH201TT-2 series amplifier/power supplies are used  with the HT2001 series 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.  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 speak …
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the speaker used on this amplifier module is the 16 ohm model# L1
Outside Dimensions:
2.375"W x 5.25"H x 1.50"D
(60mm W x 133mm H x 38mm D)

Manuals & Diagrams

System-Specific Information

HT3000 Series 2/3/5-Wire Handset Type Entry Intercoms

For 2 Wire NH209TT systems: see system Installation Manual: AWD019 for more complete wiring information.

For 3 Wire NH201TVA or NH201TT Systems: see system Installation Manual: AWD011 for more complete wiring information.

For 3 Wire NH201TVA-2 Systems: see system Installation Manual: AWD109 for more complete wiring information.

For 5 wire NH200A Systems: see system Installation Manual: AWD013 for more complete wiring information.

Related Sounds

Default Sound

Architects & Engineer's Specs

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 electrical 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 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 electrical interference.

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

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