DB9 connector wiring
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DB9 Cable pinout |
Controller connections |
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RS-232 |
RS-485 |
Signal |
96 Controller |
F4 Controller (RS-232) |
F4
Controller (RS-485) |
| pin 5 | pin 5 | Common |
20 |
16 |
16 |
| pin 3 | pin 2 | Receive |
21 |
15 |
12 |
| pin 2 | pin 1,7,8 | Transmit |
19 |
14 |
13 |
See Note 1 |
See Note 2 |
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Note 1:* Tie pins together at DB9 connector. (1,4,6) and (7,8)
Note 2:* Tie pins together at DB9 connector. (1,7,8)
