Making a Null modem cable

Blade
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Making a Null modem cable

Postby Blade » Mon Apr 06, 2009 8:12 am

I am making my own serial null modem cable for my CX777ES.
Can someone please tell me if this pinout will work for the CX777ES?
The cable will have female ends on both ends.


Code: Select all

9 pin        9 pin      Meaning
------       ------      ------------
  2              3        RX-TX
  3              2        TX-RX   
  4              6        DTR-DSR
  5              5        GND-GND
  6              4        DSR-DTR
  7              8        RTS-CTS
  8              7        CTS-RTS

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DavidL
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Postby DavidL » Mon Apr 06, 2009 8:46 am

http://www.talluscorp.com/mediawiki/ind ... ion_Wiring

There is info there on making serial cables and the sony that requires a Null Modem cable configuration.

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Postby Blade » Mon Apr 06, 2009 8:59 am

WOW, that is a lot of info.

I have extended to run using a cat5 cable. I have those cat5 to serial adapters that you slide in the pins on the serial end.

There is a few different pinouts in that link and I have no idea which one works with the CX777ES.

Can anyone confirm using cat5 to make a null modem for the CX777ES works?

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Postby Blade » Mon Apr 06, 2009 9:31 am

I found this on the cinemar forum. Can someone please confirm that this setup works.

Code: Select all

CHANGER'S DB9                COMPUTER'S DB9
=============                ==============
    Pin-5   <----------------->   Pin-5
    Pin-2   <----------------->   Pin-3
    Pin-3   <----------------->   Pin-2
    Pin-4   <--|           |-->   Pin-4
    Pin-6   <--|           |-->   Pin-6
    Pin-7   <-----|     |----->   Pin-7
    Pin-8   <-----|     |----->   Pin-8

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Postby Blade » Mon Apr 06, 2009 11:35 am

The above pinout works perfectly with the CX777ES


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