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Step 4Wire the DB9 Plugs
The two DB9 plugs that i found were male and we need female, so we have to convert them. The first thing to do is open the housing, there should be four clips that hold the two halves together. Once inside the case you can remove the guts of the plug and cut off the plug we wont be using. We can then solder these wires into the proper order:
RJ45 Pin1 (blue): DB9 Pin3
RJ45 Pin2 (orange): DB9 Pin5
RJ45 Pin3 (black): DB9 Pin2
RJ45 Pin4 (red): DB9 Pin7
RJ45 Pin5 (green): DB9 Pin4
RJ45 Pin6 (yellow): DB9 Pin5
RJ45 Pin7 (brown): DB9 Pin8
RJ45 Pin8 (white): DB9 Pin1 and DB9 Pin6
It is best to start by jumping pins 1 and 6 then finishing the top row of the DB9 connector. Once all the wires are connected put everything back in the housing and close it up. Repeat this process exactly for the second DB9 connector.
RJ45 Pin1 (blue): DB9 Pin3
RJ45 Pin2 (orange): DB9 Pin5
RJ45 Pin3 (black): DB9 Pin2
RJ45 Pin4 (red): DB9 Pin7
RJ45 Pin5 (green): DB9 Pin4
RJ45 Pin6 (yellow): DB9 Pin5
RJ45 Pin7 (brown): DB9 Pin8
RJ45 Pin8 (white): DB9 Pin1 and DB9 Pin6
It is best to start by jumping pins 1 and 6 then finishing the top row of the DB9 connector. Once all the wires are connected put everything back in the housing and close it up. Repeat this process exactly for the second DB9 connector.
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