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X.21 DB25 to DB15 Cable Pinout - AllPinouts

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serial interface cable

25 pin D-SUB male connector layout
25 pin D-SUB male connector

15 pin D-SUB male connector diagram
15 pin D-SUB male connector

Name Pin Direction Pin Name Description
2 2
3 4
4 3
6 12
7 8
8 5
14 9
15 6
16 11
20 10
21 13


  • It could be used to connect a DB25 interface of a router to a DB15 port of a modem


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