International Electrotechnical Commission

Multicore and symmetrical pair/quad cables for digital communications – Part 7: Symmetrical pair cables with transmission characteristics up to 1 200 MHz – Sectional specification for digital and analog communication cables - Edition 1.1 Consolidated Reprint
 N 61156-7

Annotation

This sectional specification relates to IEC 61156-1.

The cables described herein may be used for various communication systems as well as for analog systems, such as video, that exist or are under development and which may use as many as four pairs simultaneously. In this sense, this sectional specification provides the cable characteristics required by system developers to evaluate new systems as well as to enhance present systems.

It covers a cable having four individually screened (STP) pairs. The cable may be provided with a common screen over the cable core.

The transmission characteristics are specified up to a frequency of 1 200 MHz and at a temperature of 20 °C.

The cables covered by this sectional specification are intended to operate with voltages and currents normally encountered in communication systems. These cables are not intended to be used in conjunction with low impedance sources, for example, the electric power supply of public utility mains.

Автоматический перевод:

Многожильная и симметричная пара/четырехпарные кабели для цифровой связи – Часть 7: Симметричные кабели с характеристиками передачи до 1 200 МГц – Частная спецификация для кабелей цифровой и аналоговой связи - Выпуск 1.1 Объединенная Перепечатка