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Posted by Dmitri(Cabling-Design.com on July 19, 2006, 10:17 pm
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peasngrits wrote:
> Hello, I was wondering if anyone could point me to a guide on how to
> make
> an RJ-31X cable using CAT5. I just got 2 Quocom AT1 dialers in an
> office
> liquidation and was trying to see if I could configure them. I need the
> cable to go from the control port on the dialer to a DB25 modular
> adaptor(female) connected to my serial port (by a DB25 male to DB9
> female
> converter). I was thinking that straight through cable should work
> fine.
> Can someone confirm that please. If so, my problem may be with my
> modular
> adaptor wiring.
It does not look like you actually need an RJ31X. The pinout for RJ31X is
here:
http://www.cabling-design.com/references/pinouts/RJ31x.shtml
but I think you are confusing it with just a 8-pin 8-conductor jack of the
control port that has either proprietary pinout or maybe EIA-561 like many
of them do. RJ31X has a contact that opens couple of normally closed
contacts between pins, so I really doubt you'd see anything like that in a
control port jack.
--
Best Regards,
Dmitri Abaimov, RCDD
http://www.cabling-design.com/
Home Cabling Guide, Cabling Forum, color codes, pinouts and other useful
resources for premises cabling users and pros
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