GB/T 21430.1-2008 Multicore and symmetrical pair/quad cables for broadband digital communications(high bit rate digital access telecommunication networks)—Outside plant cables—Part 1:Generic specification
GB/T 21430.1-2008 Multicore and symmetrical pair/quad cables for broadband digital communications(high bit rate digital access telecommunication networks)—Outside plant cables—Part 1:Generic specification
Basic Information
Scope
This part of GB/T 21430 applies to filled or unfilled copper conductor polyolefin insulated twisted or star-twisted symmetrical communication cables, specifically designed for outdoor lines of broadband data communication local area networks. This part specifies the definition of material performance, the basic requirements of materials, and the cable structure, and details the test methods and procedures. The cables can be classified according to the maximum reference frequency of 30 MHz, 60 MHz, and 100 MHz. The cables included in this part are divided into filled and unfilled types according to the cable design. The typical specifications of the cables are 6 to 300 pairs. The introduction cables included in this part are divided into overhead and direct burial types according to the installation method. The typical number of pairs of the introduction cables is 2 to 6 pairs.