The present Recommendation describes a system designed to carry a maximum of 960 carrier telephone channels on a 1.2/4.4 mm coaxial pair (see Recommendation G.622). A system of this kind is produced by halving the length of the repeater section of a 1.3 MHz system (as described in Recommendation G.341) if this length is 8 km, corresponding to a nominal repeater spacing of 4 km for a 4 MHz system.
ITU-T G.343 SPANISH-1993 Referenced Document
ITU-T G.213 INTERCONNECTION OF SYSTEMS IN A MAIN REPEATER STATION
ITU-T G.332 12 MHz SYSTEMS ON STANDARDIZED 2.6/9.5 mm COAXIAL CABLE PAIRS