This Recornmenution covers digital line systems for the transmission of signu based on the 1
44 736 kbit/s97 728 kbit/s hierarchy on coaxial pair cables and includes systems conveying the following bit rates
ITU-T G.953-1988 history
1988ITU-T G.953-1988 DIGITAL LINE SYSTEMS BASED ON THE 1544 kbit/s HIERARCHY ON COAXIAL PAIR CABLES