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9 pin D-SUB female connector layout
9 pin D-SUB female connector
Just very slightly different than a normal DCE-DCE crossover cable.
Device 1
Pin Number
Device 1
Pin Name
Direction Device 2
Pin Number
Device 2
Pin Name
Description (may be empty)
1 DCD   4 DTR  
2 Rx   3 Tx  
3 Tx   2 Rx  
4 DTR   1 & 6 DCD & DSR  Oddly, there's no continuity between 6 and 1 on either side..
5 GND   5 GND  
6 DSR   4 DTR  
7 RTS   8 CTS  
8 CTS   7 RTS  
  RI     RI  pin 9 is not used in this cable
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Source(s) of this and additional information: one Dell console cable and my multimeter
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