Pinouts of Connectors

RS422 9pin connector pinout

layout
schematic diagram
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9 pin D-SUB MALE connector pin-out & layout
9 pin D-SUB MALE connector  at the DTE (Computer)
Pin Name Description
1   Shield
2 RTS+ Request To Send +
3 RTS- Request To Send -
4 TXD+ Transmit Data +
5 TXD- Transmit Data -
6 CTS+ Clear To Send +
7 CTS- Clear To Send -
8 RXD+ Received Data +
9 RXD- Received Data -

Note: Direction is DTE (Computer) relative DCE (Modem)

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9 pin D-SUB FEMALE connector pin-outs & layouts
9 pin D-SUB FEMALE connector  at the DCE (Modem)
Pinouts.ru > Pinouts of serial ports >  Pinout of RS422 9pin connector and layout of 9 pin D-SUB MALE connector and 9 pin D-SUB FEMALE connector

Source(s): Hardware Book
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