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15 pin D-SUB female connector layout
15 pin D-SUB female connector

 

 
X.21 X.21
1 1
2 4
3 5
4 2
5 3
6 7
7 6
8 8
9 11
10 12
11 9
12 10
13 14
14 13
15  
15 pin D-SUB male connector layout
15 pin D-SUB male connector
Pinout status: +0 -1
According to 1 reports in our database (0 positive and 1 negative) the X.21 cross cable pinout may be incorrect.

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