GB/T 18015.7-2017 Multicore and symmetrical pair/quad cables for digital communications—Part 7:Symmetrical pair/quad cables with transmission characteristics up to 1 200 MHz—Sectional specification for digital and analog communication cables
GB/T 18015.7-2017 Multicore and symmetrical pair/quad cables for digital communications—Part 7:Symmetrical pair/quad cables with transmission characteristics up to 1 200 MHz—Sectional specification for digital and analog communication cables
Basic Information
Scope
This part of GB/T 18015 specifies the installation conditions, materials, and cable structures, as well as the performance and requirements of twisted or star-twisted symmetrical cables with transmission characteristics of 1200 MHz and below. This part is applicable to various communication systems and existing or developing analog systems, such as cables used in video systems, which can simultaneously use up to four wire pairs; the cable structure is 4 pairs of individually shielded wire pairs, and the cable core can be covered with a total shielding. Note: The cables specified in this part are suitable for operation under the voltage and current specified by the communication system, and should not be used for low-impedance power supplies in public power supply systems. This part is used in conjunction with GB/T 18015.1-2017.