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[aprssig] RJ45/RS232 Again

Daron J. Wilson daron at wilson.org
Mon Mar 13 19:37:29 UTC 2006

What's on the modular plug end of this?  I'm assuming your TNC is the DB25,
assuming this is a blue cisco 8 pin cable with modular plugs on it, but what
is plugged into the other end of the cable?

Oddly enough, 8 pin modular plugs and RS-232 implementation vary depending
on the equipment.  I guess I missed where you were going with this to start


> -----Original Message-----
> From: aprssig-bounces at lists.tapr.org [mailto:aprssig-
> bounces at lists.tapr.org] On Behalf Of Fred Atkinson
> Sent: Monday, March 13, 2006 11:24 AM
> To: aprssig at lists.tapr.org
> Subject: [aprssig] RJ45/RS232 Again
> Hello,
>       I've revised that drawing showing the correct color codes for each
> of the RJ45 leads.  You can view it at
> http://paws.wcu.edu/fatkinson/APRS/RS232_RJ45.pdf.
>       I've connected a Cisco rollover cable to it and plugged it into my
> TNC-2.  But I'm not getting any data from it.  I am reasonably confident
> that the TNC-2 is working.
>       Any idea what is wrong here?
>       73,
>                                                        Fred, WB4AEJ
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