| 370 / | HD | MULTIPLEX COMMUNICATIONS |
| 351 | DF | PATHFINDING OR ROUTING {5} |
| 357 | DF | .~ Through a circuit switch {4} |
| 360 | DF | .~.~ Switching control {8} |
| 362 | ![]() | .~.~.~ Bus switch {2} |
| 363 | DF | .~.~.~.~> Having details of control storage arrangement |
| 364 | DF | .~.~.~.~> Having plural buses {1} |