scope:

This part of IEC 60958 specifies the physical and electricalparameters for different media. This part together with IEC60958-1, IEC 60958-4-1, and IEC 60958-4-2 specify an interface forthe serial digital transmission of two channels of periodicallysampled and linearly represented digital audio data from onetransmitter to one receiver. The transport format defined in IEC60958-1 is intended for use with shielded twisted-pair cable ofconventional design over distances of up to 100 m withouttransmission equalization or any special equalization at thereceiver and at frame rates of up to 50 kHz. Longer cable lengthsand higher frame rates may be used, but with a rapidly increasingrequirement for care in cable selection and possible receiverequalization or the use of active repeaters, or both. Provision ismade in this standard for adapting the balanced terminals to use 75? coaxial cable, and transmission by fibre-optic cable is underconsideration. This standard does not cover connection to anycommon carrier equipment. In this interface specification, aninterface for consumer use is also mentioned. The two interfacesare not identical.