Cat5 Rs232 Pin Diagram. If the first and second pin are orange the cable is 568b. Pin 7 white and brown wire.
For the db9 female connector pin 1 is the top right and pin 6 is. Pin 2 green transmit wire. Rs232 to rs485 cable pinout diagram pinouts ru module electronics lab com how make a port check serial data communication by u s converters llc converter and adapter wiki electronic circuit or rs 232 485 modbus png 1077x484px area electrical simple design of paper proteus forum for rs422 db9 db25 loopback wiring shadeblue help desk psm me p interface.
How to wire your own cables industry standard cat 5 pin out the images below depict the cable pin outs for straight through and cross over cat 5 ethernet cables that conform to eiatia industry standard for 568 a and b.
Pin 6 orange receive wire. I have some inexpensive cat5 to db9 connectors that allow you to use 8 pins. Basically the cat5 cable can be just a straight through connection. The cable pin out for the rs232 protocol is shown below connecting the db25 male connector at the machine end to a db9 female connector at the pc.