
INSTALLATION INSTRUCTIONS
SEQUENTIAL SWITCH SYSTEM
SACR-191/SACS-1/SACS-1F/SACS-5/SACS-5F
Specifications are subject to change without notice
AtlasSound.com
1601 JACK MCKAY BOULEVARD ENNIS, TEXAS 75119 U.S.A. • TELEPHONE: (800) 876-3333 • FAX: (800) 765-3435
© 2005 ATLAS SOUND LP Printed in U.S.A 01205 ATS002232 RevB 12/05 PN 227385
GENERAL DESCRIPTION
The Atlas Sound Sequential Switch
System prevents high in-rush currents
which can damage drivers and sensitive
electronic equipment. The Sequential
Switch System applies power to the
system in desired time-delay sequence,
minimizing the potential for tripped
circuit breakers, blown fuses, or voltage
spikes caused by simultaneous power
application.
The system is ideal for large sound
reinforcement systems, electrical,
electronic systems/controls, and other
signal chains that require sequential
power up and power down.
SACR-191
Sequential Switch System Controller
The model SACR-191 is a six circuit
sequencer designed to sequentially
activate the associated SACS-1 and
SACS-5 117VAC power outlets. It can
be employed in sound reinforcement
systems or other electronic systems that
require a timed sequence for system
power-up. This means the SACR-191,
when used with the SACS-1 and/or
SACS-5 117VAC outlets will power
up and down a chain of equipment
in the desired order. Added flexibility
is incorporated by providing both a
24VDC output (for use with the SACS-1
and SACS-5) and a SPDT dry contact
closure on each circuit which can be
used for a variety of other applications.
The built-in clock generator is adjustable
and provides a means of setting the turn-
on delay of the six circuits.
The delay is adjustable from one to ten
seconds. Screw terminals are provided
for connecting the SACS-1 or
SACS-5 power outlets to the SACR-191.
Terminals are also available to connect a
remote sequence start/stop switch.
The cable necessary to interface the
SACR-191 controller with the remote
SACS-1 and SACS-5 is two conductor
cable- 22 ga. min. per circuit (not
included). The momentary remote
start/stop switch also requires a two
conductor shielded cable- 22 ga. min.
(not included).
The SACR-191 is powered by an
external power supply, which is included
with each unit. Controls include a master
power on/off switch, a sequence start/
stop switch, master power indicator light,
sequence status light, and circuit status
lights.
OUTLET SPECIFICATIONS
MODEL NO. SACS-5 (6-circuit) SACS-1 (1-circuit)
Outlets 1 unswitched duplex
5 switched duplex
2 switched duplex
Outlet Rating 15 amps
Relay Contact
Rating
30 amps
Relay Coil
Voltage
24VDC nom. 18VDC min.
Connections AC 14 ga. pigtails
Switch Control Screw Terminals (2 conductors, 22 ga. min.)
Manual Override
Switch
5 provided 1 provided
Dimensions 37"H x 33⁄4"W x 21⁄2"D 41⁄2"H x 63⁄8"W x 21⁄2"D
FEATURES
• Sequential Power-Up/Down Of System
Components
• Protects Electronic Equipment
• Eliminates Tripped Circuit Breakers
• Minimizes Voltage Spikes/Current Surges
SACS-1
SACR-191
SACS-5
CONTROLLER SPECIFICATIONS
Model SACR-191
(6 Output Channels)
Master Time Delay
Between Channels
Adjustable from 1 sec.
to 10 sec.
Outputs X6 24VDC (125mA
per channel) SPDT
contacts (2 amps
@28 VDC, 0.5 amp @
120VAC
Power Required Plug-in power Supply,
Atlas Sound P/N
219481 (included)
Terminals Provided Remote "Start" switch
Dimensions 13⁄4"H x 19"W x 43⁄4"D