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PC to NI RS Cable Pinout

quasimodorquasimodor Posts: 1
in AMX Hardware
Hi all,


I lost the cable I used for years between the PC and the new NI-XXXX before setting the IP parameters. I tried with a standard 2-3-5 on RX-TX-GND cable, but no communication. Tried then with RX-TX inverted on one side, still no communication.

Do I need more than 3 pins connected? Anyone knows the correct pinout on both sides?

I guess this info is so clearly written somewhere that I'm completely overseeing it, so sorry if the question is too stupid. Thanks a lot in advance!

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    Joe HebertJoe Hebert Posts: 2,159
    quasimodor wrote: »
    Hi all,


    I lost the cable I used for years between the PC and the new NI-XXXX before setting the IP parameters. I tried with a standard 2-3-5 on RX-TX-GND cable, but no communication. Tried then with RX-TX inverted on one side, still no communication.

    Do I need more than 3 pins connected? Anyone knows the correct pinout on both sides?
    I use a premade null modem (crossed) cable for the programming port. You may need to add pins 7 and 8 to your cable.

    PC ? AMX
    2 -- 3
    3 -- 2
    5 -- 5
    7 -- 8
    8 -- 7

    HTH
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    [Deleted User][Deleted User] Posts: 0
    Only 3 conductors required

    DB9 Female to DB9 Female

    2 -- 3
    3 -- 2
    5 -- 5
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