Alpha VCU309 Specsheet

Product Specification Sheet A PS582 - Rev. 07/2013

VCU309 Video-Intercom Amplifier/Power Supply ('NoCoax' Series)

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.

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Architects' And Engineers'

Specifications

The power supply/amplifier(s) shall be Alpha
Communications® / S.T.R.™ model VCU309, or
approved equal. Amplifier shall operate from a
24VAC (40VA) U.L. Listed transformer (model#

T2440). All wiring to power supply/amplifier shall

be low-voltage Class II wiring, installed as per all
federal, state, and local elec trical c odes. Power
supply/amplifier shall surfac e mount right to t he
finished wall and shall be installed in a suitable
environment that is free from excessive dirt,
dust, temperature, humidity, grease and water.
Power supply/amplifier shall provide the intercom
amplification and signaling power for
proper system operation. For most sec ure
installation, power supply should be installed into
a lockable equipment c abinet/housing.

Power supply/amplifier(s) shall be installed a
safe distance from any source of elect rical
interference.

VCU309 Amplifier/Power Supply

The Alpha Communicat ions® / S.T.R.™ VCU309 amplifier/power supplies are used
with the S.T.R.™ 'NoCoax' type video-intercom systems, to provide intercom
amplification, power to operate the elect ric door opener(s) et c., and power to
operate t he video monitor units.

The VCU309 units eac h require a 24VAC (40VA) low-voltage Class II transformer for
power. Use our model T2440 (12VAC) plugin transformer for each VCU309.

These VCU309 amplifier/power supplies are designed to easily surface mount right
onto t he finished wall by means of customer supplied screws or the convenient
plastic 'Din Rail' brac ket supplied with eac h power supply. Connections are positive
screw terminal type.

The VCU309 is used for each 30 (or less) 'NoCoax' type video intercom monitor /
handset stations on a syst em.

Features

Easily Installs Right on Finished Wall Surface or in Cust omer Supplied Housing
Operates on Safe Low- Voltage Class II Wiring
Clear Voice Fidelity with Adjustable Voice Volume Control
Convenient Positive Screw Terminal Connections
Provides all Power Requirement s for up t o 30 'NoCoax' VideoIntercom Monitors

Specifications

Dimensions:

Height: 2.375" (60mm)
Width: 4.25" (108mm)
Depth: 4.75" (120mm) from mounting surfac e

Volume Control: Adjustable potentiomet er built-in

Connections: Positive Sc rew Terminal Connectors.

Wiring Requirements

Basic video-intercom riser wiring shall be 4-c ommon #22AWG and 1 selective wire
#22AWG, for eac h video monitor st ation c onnect ed to the riser c able. Add one (or
more) additional common and/or selec tive wires for any optional func tions required,
or for 'spare' wires. See system wiring manual for more complete wiring information.

Optional Components

DO-001: 16VAC Door Strike
PK407A: Spec ialty Door Opener Relay Adaptor
VBV-4: 4-Output 'NoCoax' Video Distributor