UL Standard for Safety Communications-Circuit Accessories
|Publication Date:||14 May 2004|
These requirements cover telecommunications-c
These devices are intended to be used in telecommunications networks that have an operating rootmean-square (rms) voltage to ground less than 150 volts and installed or used in accordance with the National Electrical Code, ANSI/NFPA 70.
These requirements do not cover telephone equipment such as telephone answering devices, residential telephone instruments, telephone dialers, cordless phones, key systems, and private-branch exchange equipment that is covered by the Standard for Information Technology Equipment - Safety - Part I: General Requirements, UL 60950-1, or the Standard for Audio/Video, Information and Communication Technology Equipment - Part 1: Safety Requirements, UL 62368-1. Also, these requirements do not cover:
a) Telephone protectors that are covered by the Standard for Protectors for Paired-Conductor Communications Circuits, UL 497, and
b) Secondary protectors that are covered by the Standard for Secondary Protectors for Communications Circuits, UL 497A.
c) Information Technology and Communications Equipment Cabinets, Enclosure and Rack Systems are investigated to the Standard for Information Technology Equipment - Safety - Part 1, UL 60950-1 or Audio/Video, Information and Communication Technology Equipment - Part 1: Safety Requirements, UL 62368-1.
These requirements do not cover receiver/transmitter
These requirements may be used, directly or by reference, to investigate portions of other equipment, not classified as telecommunications-e
These requirements do not cover wires and cables intended to be permanently installed in a building in accordance with Article 800 of the National Electrical Code, ANSI/NFPA 70.