Specifications
WSE • 3/21/97 16720 — 14 Alto 818 Access Control System
i. Feedback: A single LED indicates power ON condition.
j. Manufacturer: Westinghouse Security Electronics Model 3018, or other Westinghouse
approved device.
13. Power Supply with battery backup, Controller (3718S or 718SUL):
a. General:
1) Un-interruptable Power Supply shall provide continuous power to the Controller,
sensors, monitor modules and annunciator devices and operate from 115VAC/60Hz
[Option: 230VAC/50Hz] source.
2) Optionally, it shall support external lead acid battery(s) to maintain all Controller, sensor
and monitor modules operations for at least 4 (four) hours in event of power failure.
b. Capacities: The Power supply shall provide:
1) Low volt DC output to the Controller.
2) Limited lock power output at 12 [or 24] Volts DC.
3) 5 ampere output current at 12 VDC, 1.5 A at 24 VDC.
4) Power failure output and battery charger output.
c. Specifications:
1) Dimensions: 18 in. X 7.2 in. X 5.2 in. depth (45.7 cm X 18.3 cm X 13.2 cm).
d. Environmental:
1) Humidity: 10% to 95% non-condensing.
2) Temperature: 20° to +120° F (-7° to +49° C).
e. Regulatory: UL 1012 or 1310 and CSA or cUL listed. [Option 230VAC/50Hz is not UL listed.]
f. Mounting: The Power Supply should be installed in a secure area at least two feet from the
Controller.
g. Power: 115VAC/60Hz source. [Option: 230VAC/50Hz.]
h. Wiring:
1) The power supply shall be connected to the Controller via a special wiring harness of at
least 18 AWG.
2) The power supply shall utilize phoenix type connectors to allow for ease of field wiring
and unit replacement.
i. Feedback: A single LED indicates power ON condition.
j. Self-protection: The power supply shall provide the following signals to the Controller:
1) Power fail.
2) Battery recharge signal.
k. Manufacturer: Westinghouse Security Electronics Model 3718S [3718SUL] or other
Westinghouse approved device.
14. Power Supply (PI-1):
a. General: Un-interruptable Power Source Module shall provide low voltage DC power. It shall
also support optional external lead acid batteries to maintain all controller operations for at
least four (4) hours in event of power failure.
b. Capacities:
1) 28 volt DC output to readers.
2) Limited lock power output at 24 Volts DC.
3) 5 ampere output current.
4) Power failure output.
5) Battery charger output.
6) Additional Power Supplies may be required based upon system configuration of other
devices and wiring distances.