Design and Construction Handbook - Los Angeles World Airports

Guide Specification
C. Transformers: Where required by the function of the system, provide appropriate impedance
ratio and power handling capacity for audio transformers required in the system.
D. Loudspeaker hardware: Contractor is solely responsible for ensuring that all grilles,
transformers, enclosures, baffles, and ancillary hardware to be supplied are compatible with the
loudspeakers specified.
E. Pads: Contractor shall provide balanced pads, comprised of 0.5 watt, 5 percent composition
resistors soldered to fixed connection points at each end, as required to achieve proper
impedance matching and levels.
F. Remote control panels and receptacle plates: Contractor shall fabricate with 1/8-inch thick
6061-T6 aluminum with a brushed, anodized finish (color to match surrounding surfaces).
G. System functional diagrams: Contractor shall provide 1/2-size as-built functional diagram,
framed with acrylic cover and mounted adjacent to equipment rack, for each control or audio
system (including patch field designations). Mounting inside interface tie point enclosures will
be acceptable.
2.4 LABELS
A. Shall meet the legibility, defacement, exposure and adhesion requirements of UL 969.
B. Shall be pre-printed or laser printed type.
C. Where used for cable marking, a label with a vinyl substrate and white printing area and a clear
“tail” that self laminates the printed area when wrapped around the cable shall be provided. The
label color shall be different than that of the cable to which it is attached.
D. Where insert type labels are used, provide clear plastic cover over label.
E. Acceptable Manufacturers:
1. W.H. Brady
2. Ideal
3. Panduit
4. Other equal
F. Contractor shall provide permanently mounted 1/32-inch thick by 1/4-inch high black lamicoid
or anodized, brushed aluminum labels with 1/8-inch engraved lettering for each piece of
equipment and every user-adjustable control and input on the audiovisual equipment.
2.5 FIRESTOPPING MATERIALS
A. Fire stopping for openings through fire-rated and smoke-rated walls and floor assemblies shall
be listed or classified by an approved independent testing laboratory for "Through-Penetration
PAGING SYSTEMS
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Communication Systems