RS232 pinout diagram arranged for easy use
RS232 connectors displayed from the back for easy wiring .
This is the most useful way of viewing these connectors when constructing prototype or development boards as you need to be able to know where the pins are when holding a soldering iron to the back of the connector.
RS232 PIN OUT DIAGRAM 
Note: The pins of each
connector are stamped on both sides of any D-type connector - but they are
extremely difficult to see as they are only moldings so there is no colour
difference. To see them you need a good light source and a jewellers loupe
magnifier.
The RS232 pin out diagram is also useful for the other side of the connector you just have to make sure that you identify pin one correctly and then match the d-type to the diagram. (Looking from the front of the connector choose the opposite gender diagram).
On a 9 way d-type double check the position of 6 and 9 as you can easily muddle them up.
Always, Always, Always double, triple check your connectors if making a
pcb - this is where it usually goes wrong - use a 1 to 1 printed layout and
place the connectors on the print in their positions.
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