Historical
IEC 61156-7 Ed. 1.0 en:2003
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
covers a cable having four individually screened (STP) pairs. The cable may be provided with 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.
International Electrotechnical Commission [iec]
