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RS-232 Modem Cable verification

850 modem cable

2 replies to this topic

#1 Pack007 OFFLINE  

Pack007

    Space Invader

  • 44 posts
  • Location:Buffalo, NY

Posted Sun Aug 28, 2016 3:20 PM

I have 2 - db9 male to db25 male, 850 to Hayes compatible modem cables.  The pins are connected different on each.  I'm thinking I know which one is wired correctly but need someone to help me feel confident about my decision.

 

These are the pin connections

 

850 R1:  Gray cable  Black cable

Pin#        Pin#            Pin#

1              20                6

2                8                8

3                2                2

4                3                3

5                7                7

6                6              20

7                4                4

8                5                5

 

The 6 and 20 pins on the modem side are reversed. 

 

Any thoughts?


Edited by Pack007, Sun Aug 28, 2016 3:23 PM.


#2 Fuji-Man OFFLINE  

Fuji-Man

    Chopper Commander

  • 187 posts

Posted Sun Aug 28, 2016 3:38 PM

Gray cable probably.

 

http://www.atarimani...-module_38.html


Edited by Fuji-Man, Sun Aug 28, 2016 3:39 PM.


#3 Pack007 OFFLINE  

Pack007

    Space Invader

  • Topic Starter
  • 44 posts
  • Location:Buffalo, NY

Posted Sun Aug 28, 2016 4:01 PM

Thanks. The pain has stopped.





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