G.703

The Directive G.703 Physical / electrical characteristics of hierarchical digital interfaces ITU-T describes the interfaces that are required for the transmission of data transfer rates described in Directive G.702 digital hierarchy bit rates. The interfaces allow the connection of digital network components (eg, multiplexers, terminals, network terminations, switches ) over the telephone network.

Interfaces

  • 64 kbit / s
  • 1544 kbit / s
  • 2048 kbit / s
  • 6312 kbit / s
  • 8448 kbit / s
  • 32 064 kbit / s
  • 34 368 kbit / s
  • 44 736 kbit / s
  • 97 728 kbit / s
  • 139 264 kbit / s
  • 155.520 kbit / s

Associated guidelines

  • G.702 describes the hierarchical structure of the PDH technique, that is to say the different plesiosynchronous data transfer rates used in the telephone network are listed.
  • G.704 describes the frame structures for some of the interfaces.
  • ITU Recommendation
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