Consulting Service International
A non-profit, professional organization that promotes
the economical and efficient design and implementation
of communications distribution systems in commercial
and multi-family buildings.
A USA trade organization that specializes in the development
of standards for the electrical and functional characteristics
of interface equipment.
Institute of Electrical
and Electronic Engineers
An international professional engineering society that
issues its own standards and Engineers is a member of
ANSI and ISO.
An international, non-profit standards organization
whose membership includes standards organizations from
participating nations. (ANSI is the USA representative)
A USA trade organization that specializes in the developmentof
standards for telecommunications cabling and its support
A non-profit corporation, operating as a testing facility
and developer of safety standards. UL also has the capability
for testing to various industry performance specifications
such as TIA/EIA, IBM and Bellcore. By its own definition,
Underwriters Laboratories defines itself as follows:
"Underwriters Laboratories Inc., founded in 1894,
is chartered as a not-for-profit organization without
capital stock, under the laws of the state of Delaware,
to establish, maintain and operate laboratories for
the examination and testing of devices, systems and
materials to determine their relation to hazards to
life and property" UL tests products for paying
"clients" and if the product submitted passes
the requirements of the UL standard for which it is
submitted, a UL "listing" or "verification"
is granted which allows the manufacturer to use the
UL manifest or "label" on its product. It
is important to remember that UL is not an approval
agency. It approves nothing, but merely lists a product
meeting its minimum standard for safety or verifies/classifies
a product as meeting an industry standard for performance.
Underwriters "Listing" mark on a product is
generally accepted by the public and government agencies
as evidence of a "safe" product, not
necessarily a "quality" product.