370 / | HD | MULTIPLEX COMMUNICATIONS |
FOR 101 | MULTIPLEX SWITCHING (370/53) {5} | |
FOR 102 | DF | .~> Pathfinding (370/54) |
FOR 103 | DF | .~> Drop channel (370/55) |
FOR 104 | DF | .~> Concentrators (370/56) |
FOR 105 | DF | .~> FDM switching (frequency division multiplexing) (370/57) |
FOR 106 | DF | .~> TDM switching (time division multiplexing) (370/58.1) {12} |