SMPTE RP 174-1993

This practice describes the means of interconnecting digital video equipment operating in system M (525/60) and complying with the 4:4:4 encoding parameters as defined in CCIR Recommendation 601-2, annex 1 with a nominal sampling frequency of 13.5 MHz. Provision is made to convey signal at 10-bit precision and to carry a fourth, auxiliary, channel as part of the signal multiplex (yielding 4:4:4:4 or 4×4 overall). The practice has application in the television studio over distances up to 100 m (320 ft).