Serial Printer (25-25) Cable Pinout -
D-Sub 1 D-Sub 2
Receive Data 2 3 Transmit Data
Transmit Data 3 2 Receive Data
Clear To Send + Data Set Ready 5 + 6 20 Data Terminal Ready
Carrier Detect + Data Terminal Ready 8 + 20
Ground 7 7 Ground

25 pin D-SUB female connector layout 25 pin D-SUB female connector diagram

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