> Of course I can't plug
> any sort of coaxial cable directly into my fairly new hub, which has only
> rj45 plugs on it.  So, I'm just wondering if there are BNC to rj45
> adaptors that could help me get this card operational on my network?

I'm not sure if a balun would help; they're available with RJ45 on one side
and BNC the other, and I think they're suitable for Ethernet.  My first
instinct would be to get a UKP20 hub with some 10baseT at the front and a
10base2 at the back; Netgear do a nice one.  You might not want to replace you
hub or add another to the system, though...

> Any
> other gotchas involved in trying to mix coaxial and UTP networking stuff?

I've always run either the coax segment into another NIC on the server, or
used a cheap hub like the Netgear I mentioned above to bridge the segments.
Works fine.

> These are a
> plastic housing that covers a plug for DB9 or DB25 ports, and in the
> housing is an rj45 jack.  It looks like these things are made for plugging
> UTP network cables into serial or parallel ports.

My first guess would be a serial adapter, like the ones used to connect the
serial (console) port on Cisco routers to your PC or serial terminal.  The
Cisco machines use RJ45 or RJ11 (I forget which) as serial ports, and they
supply a weird twisted-pair cable with those jacks at each end; you plug that
into the little doohickey you have and then that into the PC.  Without further
details it's hard to tell exactly what they are though, that's just the only
big use I can think of.

Regards,
Ben A L Jemmett.
(http://web.ukonline.co.uk/ben.jemmett/, http://www.deltasoft.com/)

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