Wacky Serial Cable

Posted on 2009-12-21
Last Modified: 2012-05-08
Any and all,

I am looking for a certain type of serial DB9 cable with specific pin-outs (see attached). We are trying to connect an SDA meter (broadband industry) to a PC. This meter is now discontinued and therefore getting parts from the vendor is not happening. I have tried using standard RS232 cable to no avail. I was just wondering if anyone immediately knew if and where this could be purchased, otherwise we will be left to make them from hand.
Question by:WOW-DS
    LVL 11

    Accepted Solution

    There are a few companies that will make custom cables to spec. Here's one:

    LVL 69

    Expert Comment

    You may want to see if a null-modem cable will work for you - they are very common and easy to get.
    LVL 10

    Expert Comment

    That is indeed a null modem, except that pin 1 talks to nothing on both sides.
    LVL 10

    Expert Comment

    My favorite null modem cable is a cisco console cable connected to an old style cisco console cable rj45 to 9pin, but you need a 9pin male to 9pin female null-modem cable.

    Author Comment

    We have tried using the null modem cable. No success. Thanks everyone for chiming in, but I will be having it custom made.

    Author Closing Comment

    Going this route.

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