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Pin Assignment
DC Power outlet
RS-232 Pin Assignment
The pin assignment scheme for a 9-pin male connector on a DTE is given below.
PIN 1 : DCD PIN 2 : RXD PIN 3 : TXD PIN 4 : DTR
PIN 5 : GND PIN 6 : DSR
PIN 7 : RTS PIN 8 : CTS
PIN 9 : X
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RS-422/485 Pin Assignment
The pin assignment scheme for 4-pin RS-422 and 2-pin RS-485 as below.
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RS-422 Wiring Diagram
Serial Device Converter
R- T-
R+ T+
T- R-
T+ R+
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RS-485 Wiring Diagram
Serial Device Converter
D+ D+
D- D-
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