Drawing

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K.15
Cable/Conduit Beam/Purlin Hangers/Hanging
Systems
Stud Wall Communication/
Low Voltage
Dry Wall Acoustical Miscellaneous Index
Sizing Information
Reference
Codes & Standards
Reference
BICSI TDMM, 12th Edition; 2009 Revision (continued)
Cable support devices that have narrow surface areas to support
the cable laying horizontally inside or on top may have a detrimental
effect on the transmissions performance of higher performance
cabling systems.
If possible, a wider surface area should be chosen to support the
cable as a precaution against potential problems. Another precaution
would be to reduce the distance between the support devices.
Suspended cables must be installed with at least 75mm (3 in.) of
clear vertical space above the ceiling tiles and support channels
(T-bars).
For large quantities of cables (50 or more) that converge at the ER,
TR, and other areas, provide cable trays or other special supports
that are speci cally designed to support the required cable weight
and volume.
Page 5-57: Telecommunications Outlets/Connectors
Telecommunications outlet/connector boxes must be used in
 re-rated wall installations and must be  restopped appropriately.
Low-voltage mounting brackets (e.g., also known as mud ring,
plaster ring, square-drawn cover, and box eliminator) may be used
where the wall is not  re rated, and are typically used for work
associated with MACs.
Telecommunications outlet/connector boxes installed in dry wall,
plaster, or concrete block wall are available in an array of shapes
and sizes. The size of each telecommunications outlet/connector
box must be of a size that is adequate to accommodate the type
and density of cabling to be installed.
Telecommunications outlet/connector boxes should not be placed
back to back to serve adjacent rooms. This can compromise the
effectiveness of the wall as a sound barrier and as a  restop.