Rev. 2 - 02/09
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42 Central Drive • Farmingdale NY 11735-1202 • Phone (631) 777-5500 • Fax (631) 777-5599
TOLL-FREE 1-800-666-4800 • Web: www.AlphaCommunications.com • Email: email@example.com
Due to continuous product improvement, all colors, sizes, materials,
finishes and specifications are subject to change without notice.
Audio Switching Adaptor
The Alpha Communications®/S.T.R.™ TU1007A multi-en-
trance audio adaptors are used with our S.T.R.™ series inter-
com and video-intercom amplifiers only. They provide audio
intercom and door release switching for two (2) to eight (8)
entrances (or more). They can be used with the NH200A,
NH201TT, NH201TVA, NH201TVA-2 series apartment inter-
coms as well as the VCU6 and VCU6-2 series video-intercom
amplifier/power supplies. They cannot be used with the NH209TT
series 2-wire systems, which can only have one (1) building
entrance panel. They can also be used with the NH208TVU
series amplifiers for the HT2006 series handset stations.
The TU1007A adaptors are used in addition to the system
amplifier, and power off of the same transformer. No additional
transformer is needed. When used on a video-intercom system,
use must also use the model DPS-2 video switching adaptor(s).
You need (1) DPS-2 for each TU1007A adaptor being used.
You must use one (1) TU1007A switching adaptor for (2)
building entrances, use two (2) for (3-4) building entrances, use
three (3) for (5-6) building entrances and use four (4) for (7-8)
The TU1007A multi-entrance adaptors 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. Connections are positive
screw terminal type.
Can be used for two (2) to eight (8) entrances (or more)
• Operates on Safe Low-Voltage Class II Wiring
• Convenient P