Rev. 1 - 10/03
Copyright© 2003, Alpha Communications®, All Rights Reserved
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.
ARCHITECTS' AND ENGINEERS'
The power supply unit(s) shall be Alpha Communi-
cations®/S.T.R.™ model VCU7, or approved equal.
Power supply shall operate from a 12 to 16VAC
(40VA) U.L. Listed transformer (model SS146). All
wiring to power supply shall be low-voltage Class II
wiring, installed as per all federal, state, and local
electrical codes. Power supply shall surface mount
right to the finished wall and shall be installed in a
suitable environment that is free from excessive dirt,
dust, temperature, humidity, grease and water. Power
supply shall provide the video monitor power and
control functions, for proper system operation. For
most secure installation, power supply should be
installed into a lockable equipment cabinet/housing.
Power supply unit(s) shall be installed a safe dis-
tance from any source of electrical interference.
VCU7 Power Supply
The Alpha Communications®/S.T.R.™ VCU7 power supplies
are used with the S.T.R.™ video-intercom systems, to provide
to operate the video monitor units.
The VCU7 units each require a 12 to 16VAC (40VA) low-voltage
Class II transformer for power. Use our model #SS146 (16VAC)
plug-in transformer for each VCU7.
These VCU7 power supplies are designed to easily surface
mount right onto the finished wall by means of the convenient
plastic 'Din Rail' bracket supplied with each power supply.
Connections are positive screw terminal type.
The VCU7 is used for each 30 (or less) video-intercom monitor
stations on a system. Each system also requires the intercom
amplifier unit (model NH200A or NH208TVU or