C. Exterior Electronics: NEMA 250, Type 4X
fiberglass.
D. Corrosion Resistant: NEMA 250, Type 4X PVC.
E. Screw Covers: Where enclosures are accessible,
secure with security fasteners of type
appropriate for enclosure.
2.4 ELECTRICAL POWER
A. Normal System Power Supply: 120V, 60 Hz, through
a locked disconnect device and an isolation
transformer in subscriber control unit.
Subscriber control unit shall supply power to all
components connected to it, unless otherwise
indicated.
B. Annunciation: Indicate a change in system
condition and switching of system or component to
backup power.
C. UPS: Minimum of eight (8) hour battery backup
capability for all systems, sub-systems, servers
and workstations.
2.5 SECURE AND ACCESS DEVICES
A. Acceptable Manufacturers:
Andover Controls - no equivalent
Integral Technologies - no equivalent
HID - no equivalent
Intellisense - no equivalent
Aiphone - no equivalent
Ademco - no equivalent
George Risk Industries, Inc. - no equivalent
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