Wacky connector
Gerald Combs
gerald at ethereal.com
Fri Feb 22 04:35:49 CST 2002
On Thu, 21 Feb 2002, Bradley Miller wrote:
> Does anyone know where I can get a DB9 to RJ45 adapter? I need ot route a
> serial connection outside my new camera enclosure . . . I had some adapters
> at one time that went from RJ45 to DB9 and DB25 . . . wired serial
> connectors up that way. Anyone have any suggestions?
What sort of pinout do you need on the RJ45 side? I probably have a few
lying around that came with Cisco gear. Which leads me to today's rant:
I really wish there were a standard pinout for RJ-45 connections. Cisco,
Digi, Xyplex, ADC/Kentrox, Lantronix all have their own pinouts. Which is
a pain when you want to wire, e.g., a multiport serial device from vendor
A to the console ports on your routers and switches from vendors B and C.
What's more, although some of the vendors were smart enough to make the
pinouts symmetric (rolling one of the connectors will give you a null
modem cable), some of them weren't.
BTW, this guy says he did it first:
http://www.yost.com/computers/RJ45-serial/index.html
> -- Bradley Miller
>
>
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