1 - 2 - 3 - 4 - 6 - 8 - A - B -- D - E - F - G - H - I - L - M - N - O - P - Q - R - S - T - U - V - W
| CCC |
| checksum |
| Checksum Algorithm |
| Checksum Field |
| circuit |
| class |
| class number |
| common rule |
| communication facility |
| concatenation |
| connection |
| context |
| control message |
| Control Protocol |
| CRC |
| create |