Rev. 3 - 11/03
Copyright© 2001-2003, 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
ARCHITECTS' AND ENGINEERS'
The Power Supply (with Battery Back-Up) shall be
Alpha Communications®/Cornell model B-5243A or
approved equivalent. The Power Supply shall be
housed in a steel (surface mount) enclosure, painted
in a Grey baked enamel finish, and shall be supplied
with a cam lock and keys. Unit shall be approximately
16.00" H x 12.00" W x 5.00" D. The Power Supply
shall provide 12VDC (4 amps) OR 24VDC (3 amps)
continuous supply, and shall be field selectable by
setting SW1 to the appropriate position. The power
supply shall operate at 115VAC/60 Hz. Unit shall be
supplied with two (2) 12VDC (7.5 Amp/Hour) batter-
ies. Battery type and size shall be sufficient to allow the
master annunciator station to operate on battery power
(in Standby Mode only) for minimum of 24 hours.
The B-5243A shall operate on the 4100 and/or 4200
Series Rescue Assistance System(s), and shall be UL
Contractor shall observe all local and national electri-
cal and building codes.
Due to continuous product improvement, all colors, sizes, materi-
als, finishes and specifications are subject to change without notice.
B-5243A Power Supply
with Battery Back-Up
The B-5243A Power Supply with Battery Back-Up
converts a 115VAC/60 Hz. input to a 12VDC or
24VDC power limited output, and is UL Listed for fire
alarm, burglar alarm and access control applications.
The B-5243A Power Supply with Battery Back-Up is
designed to be used with our 4100 and/or 4200 series
Area of Rescue Assistance Systems, to provide sys-
tem power and emergency back-up power when
The B-5243A Power Supply comes complete with
power supply, enclosure, cam lock (and keys), battery
leads and two (2) 12VDC batte