370 / | HD | MULTIPLEX COMMUNICATIONS |
351 | DF | PATHFINDING OR ROUTING {5} |
357 | DF | .~ Through a circuit switch {4} |
360 | DF | .~.~ Switching control {8} |
362 | DF | .~.~.~ Bus switch {2} |
364 | DF | .~.~.~.~ Having plural buses {1} |
365 | .~.~.~.~.~ Separate transmit and receive buses |