 34 pin M/34 male connector to the DCE | DCE Pin name
| DCE Pin
| Direction
| DCE Pin
| DCE Pin name
| Description |
| A | |  | | A | |
| B | |  | | B | |
| C | | -?- | | F | |
| E | | -?- | | H | |
| F | | -?- | | C | |
| H | | -?- | | E | |
| P | | -?- | | R | inside twisted pair with S wire |
| R | | -?- | | P | inside twisted pair with T wire |
| S | | -?- | | T | inside twisted pair with P wire |
| T | | -?- | | S | inside twisted pair with R wire |
| U | | -?- | | V | inside twisted pair with W wire |
| V | | -?- | | U | inside twisted pair with X wire |
| W | | -?- | | X | inside twisted pair with U wire |
| X | | -?- | | W | inside twisted pair with V wire |
| Y | | -?- | | BB | |
| Z | | -?- | | AA | |
| AA | | -?- | | Z | |
| BB | | -?- | | Y | |
|  34 pin M/34 female connector to the DCE |