Pinouts of Connectors

Serial 9 to 25 Adapter pinout

layout
schematic diagram
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This adapter will enable you to connect a 25 pin serialcable to a 9 pin connector at the computer

9 pin D-SUB MALE connector pin-out & layout
9 pin D-SUB MALE connector  to the computer
9-Pin 25-Pin
Carrier Detect 1 8
Receive Data 2 3
Transmit Data 3 2
Data Terminal Ready 4 20
System Ground 5 7
Data Set Ready 6 6
Request to Send 7 4
Clear to Send 8 5
Ring Indicator 9 22

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25 pin D-SUB FEMALE connector pin-outs & layouts
25 pin D-SUB FEMALE connector  to the cable
Pinouts.ru > Pinouts and schemes of serial ports cables >  Pinout of Serial 9 to 25 Adapter and layout of 9 pin D-SUB MALE connector and 25 pin D-SUB FEMALE connector

Source(s): Hardware Book
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