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Appendix A. Pinouts
Table
DTE/DCE Connector Pin Assignments
DB25 Pin# | V.35 Pin# | Function | DTEx Port | DCE Port |
|
|
| Direction | Direction |
|
|
|
|
|
1 | A | FGND |
|
|
2 |
| TD(RS232) | I | O |
3 |
| RD(RS232) | O | I |
4 | C | RTS | I | O |
5 | D | CTS | O | I |
6 | E | DSR | O | I |
7 | B | GND |
|
|
8 | F | DCD | O | I |
9 |
| NEG |
|
|
10 |
| POS |
|
|
11 | AA | O | I | |
12 | Y | O | I | |
13 | V | O | I | |
14 | T | O | I | |
15 |
| TC(RS232) | O | I |
16 | R | O | I | |
17 |
| RC |
|
|
18 | S | I | O | |
19 | P | I | O | |
20 | H | DTR | I | O |
21 | W | I | O | |
22 |
|
|
|
|
23 | U | I | O | |
24 |
| ETC(RS232) | I | O |
25 | X | O | I |
I=Input
O=Output
106 | FSU User Manual |