RS-485 Port - Pin-assignments


RS-485 Port - Pin-assignments


 


Some server system-boards have an RS-485 port that can be used by the Advanced System Management Processor to communicate with each other in half-duplex mode .

(Netfinity 5500-M20 8662)

PIN Signal
1 + 5 Vdc (Term Power)
2 + Data Input (tied to pin 4)
3 - Data Input (tied to pin 5)
4 + Data Output (tied to pin 2)
5 - Data Output (tied to pin 3)
6 Ground


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