| 370 / | HD | MULTIPLEX COMMUNICATIONS |
|
| FOR 135 | DF | TIME DIVISION (370/77) {14} |
| FOR 169 |  | .~ Synchronizing (370/100.1) {13} |
| FOR 170 | DF | .~.~> Reference indication consists of a gap (370/101) |
| FOR 171 | DF | .~.~> Pulse stuffing or deletion (370/102) |
| FOR 172 | DF | .~.~> Mutual (reciprocal) synchronization (370/103) |
| FOR 173 | DF | .~.~> Moving satelite (370/104.1) |
| FOR 174 | DF | .~.~> Distributed (370/105) |
| FOR 175 | DF | .~.~> Frame (370/105.1) |
| FOR 176 | DF | .~.~> Channel (370/105.2) |
| FOR 177 | DF | .~.~> Bit phase or jitter (370/105.3) |
| FOR 178 | DF | .~.~> Unique synchronization word (370/105.4) |
| FOR 179 | DF | .~.~> Unique sychronization pulse (370/105.5) |
| FOR 180 | DF | .~.~> Plural sychronizing words (370/106) |
| FOR 181 | DF | .~.~> Pseudo-random (370/107) |
| FOR 182 | DF | .~.~> Including delay device (370/108) |