Details: Alpha Communication NH201TVA-2 3 Wire Power Supply/Amplifier

These NH201TVA-2 and NH208TVU power supplies are designed to easily surface mount right onto the finished wall by means of customer supplied screws or the convenient plastic 'Din Rail' bracket supplied with each power supply. The NH200A and NH908A power supplies are P.C. board type, with self-stick mounting tabs and mounting holes for surface wall or other types of mounting.NH200A power supply is used with HT3003 or HT2003 series 5-wire apt. entry intercom systems. NH201TVA-2 power supply is used with HT2001 series 3-wire apt./entry intercom systems. NH208TVU power supply is used with HT2006 series handsets for handset to handset internal communication, as well as communication to one or more door speakers. NH908A power is used with HT2006 series handsets for internal handset to handset communication only.