PK724 System Amplifier
With Electronic Chime
The Alpha Communications® PK724 power
supply/amplifiers are used with our IR704B,
IR704BVC, IR704BD and IR804A series in-
tercom stations. They provide audio intercom,
electronic chime and system power for the
The PK724 easily mounts right on the surface
of the wall and a plug-in wiring harness makes
installation quick and easy.
Each system requires only one (1) PK724 power
• Has (2) built-in Electronic Chime Sounds
• Operates on Safe Low-Voltage Class II Wiring
• Convenient Plug-In Wiring Harness
• OPTIONAL music or audio input
Height: 5.50" (140mm)
Width: 3.125" (83mm)
Depth: 2.00" (51mm)
Construction: Rugged ABS White Plastic Casing.
Polarized plug in type wiring harness
16VAC using the SS102A (pigtail)
or SS105B (plug-in) type system
Rev. 3 - 05/05
ARCHITECTS' AND ENGINEERS'
The system power supply/amplifier(s) shall be Alpha
Communications®/Tektone model PK724, or ap-
proved equal. Unit(s) shall provide the audio, elec-
tronic chime and power circuits needed to power the
entire intercom system. Unit(s) shall also provide an
input for a background music source or separate
electronic chime, or other compatible audio source.
Low voltage wiring shall be used and a plug-in wiring
harness shall be provided for installation wiring.
Unit(s) shall have separate intercom and electronic
chime volume controls, and shall have a 2-note and 1-
note electronic chime built-in.
Contractor shall observe all local and national electri-
cal and building codes.
Copyright© 1999-2005, 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: firstname.lastname@example.org
Due to continuous product improvement, all colors, siz