Installation manual

UL Underwriters Laboratories, a privately owned com-

pany that tests to make sure that products meet safety

standards. UL also administers a program for the certi-

fication of Category-Rated Cable.

Universal Service Order Code An old Bell system

term identifying a particular service or equipment

offered under tariff.

UTP Unshielded Twisted Pair. See Twisted Pair.

Workstation The working area in a building required

by one telecommunications user. Industry standards

call for one voice drop and one data drop for each

workstation. The voice drop is one 4-pair unshielded

twisted pair (UTP). The data drop may be 100 4-pair

UTP 150 2-pair shielded twisted pair (STP), or optical

fiber.

10BASE-T This is the IEEE standard that defines the

requirement for sending information at 10 Mbps on

unshielded twisted-pair cabling, and defines various

aspects of running Ethernet on this cabling.

100BASE-T This is the IEEE standard that defines the

requirement for sending information at 100 Mbps on

unshielded twisted-pair cabling, and defines various

aspects of running baseband Ethernet on this cabling.

A-7

APPENDIX A

Glossary

For more information call your Leviton representative or the Leviton Technical Hotline at 800-722-2082