described in NFPA 70.
2.4
LOCKS AND KEY-LOCK OPERATED SWITCHES
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NOTE: Either round key or conventional key type
locks are acceptable for use. Selection should be
based on hardware availability at the time of design
and the requirements for matching locks currently in
use at the site. If the locks do not have to be
matched to locks in use, and the designer has no
preference, all brackets may be removed.
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2.4.1
Locks
Locks shall be provided on system enclosures for maintenance purposes shall
be [UL listed, round-key type, with three dual, one mushroom, and three
plain pin tumblers] [or] [conventional key type lock having a combination
of five cylinder pin and five-point three position side bar]. Keys shall
be stamped "U.S. GOVT. DO NOT DUP." The locks shall be so arranged that
the key can only be withdrawn when in the locked position. All maintenance
locks shall be keyed alike and only two keys shall be furnished for all of
these locks.
2.4.2
Key-Lock-Operated Switches
All key-lock-operated switches required to be installed on system
components shall be UL listed, [with three dual, one mushroom, and three
plain pin tumblers,] [or] [conventional key type lock having a combination
of five cylinder pin and five-point three position side bar]. Keys shall
be stamped "U.S. GOVT. DO NOT DUP." Key-lock-operated switches shall be
two position, with the key removable in either position. All
key-lock-operated switches shall be keyed differently and only two keys
shall be furnished for each key-lock-operated-switch.
2.5
SYSTEM INTEGRATION
When the CCTV system is installed in conjunction with an ESS, the CCTV
system shall be interfaced to the ESS and shall provide automatic, alarm
actuated call-up of the camera associated with the alarm zone. Equipment
shall be supplied with all adapters, terminators, cables, main frames, card
cages, power supplies, rack mounts, and appurtenances as needed.
2.6
SOLID STATE CAMERAS
2.6.1
High Resolution Monochrome Camera
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NOTE: The designer will specify operating voltage.
The designer should determine the artificial light
levels at the site so that the correct type of
camera is specified. The designer should also
determine if additional lighting is required.
Lighting ratios of 5:1 or less (highlight to shadow
ratio) will ensure shadow detail in the video
picture.
SECTION 16751A
Page 21
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