4 ms·

RS232 is a protocol, not a port. Rj45 is a port that rs232 uses and if you confuse that with ethernet, you will definitely damage something.

• gaius 10y ago
  But not by using the "wrong" cable. The cables for RS232 and ethernet alike are passive.
  • e12e 10y ago
    PowerOverEthernet might be a surprise for a rs232 device.
    • gaius 10y ago
      Like what happened to R2D2 on Cloud City.
    • deelowe 10y ago
      Correct. I was referring to POE scenarios.