This sectional specification relates to IEC 61156-1: Multicore and symmetrical pair/quad cables for digital communications Part 1: Generic specification. The cables described herein are specifically intended to construct patch, equipment, and work area cords for class D, E and F channels, as defined in IEC 11801:2000, Information technology Generic cabling for customer premises (see Table 1).
It covers individually screened, common screened and unscreened pairs or quads. The transmission characteristics and the frequency range of the cables are specified at 20 °C. The cables covered by this standard 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 supplies of public utility mains. The cables described herein are intended for work area wiring as defined in ISO/IEC 11801. includes the following significant technical changes with respect to the previous edition: a) new requirements for new cables Cat6A, Cat7A for 10 GBase-T applications; b) revised requirements and tests for the cables
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