6.0 Pin Assignments & Cable Wiring
The pin assignments of the DB9 and DB25 Male port are stated as below:
Type | DB9M | DB25M | |
Signal | |||
|
| ||
TxD- | 1 | 8 | |
TxD+ | 2 | 3 | |
RxD+ | 3 | 2 | |
4 | 20 | ||
RTS- | 6 | 6 | |
RTS+ | 7 | 4 | |
CTS+ | 8 | 5 | |
CTS- | 9 | 22 | |
GND | 5 | 7 | |
Type | DB9M | DB25M | |
Signal | |||
|
| ||
Data+ | 2 | 3 | |
Data- | 1 | 8 | |
| 6 | 6 | |
RTS+ | 7 | 4 | |
CTS+ | 8 | 5 | |
CTS- | 9 | 22 | |
GND | 5 | 7 |
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