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Original question:

TRS3232E-Q1: When unpowered, does the receiver input impedance change and would it damage an active remote device?

TRS3232E: When unpowered, does the transmitter output high impedance?

Zach Xia
Genius 9045 points

Part Number: TRS3232E

Hi, 

In the related thread, the receiver impedance is discussed, But how about the transmitter?

Thanks,

Zach

  • 0
    TI__Guru 54042 points

    Hi Zach,

    It will be high impedance on the transmitter output when the power goes off - this pin will be floating without power and it can withstand +/-13.2V regardless of voltage supply.

    Please let me know if you have any other questions. 

    Best,

    Parker Dodson