Larry,
Thankyou very much for your response.>Rewiring seems to me to be a better solution than the more
>awkward configuration of going from fiber optic to an
>ancient 10 MHz network to a 100 MHz segment. I would rewire
>or continue with coax (which I really wouldn’t do unless it
>were a temporary connection).
Yes, I know, the whole affair is rather stale but the building is very old and getting permission to do any work will take yonks 
if it comes through at all. We are going to be out of that location anyway.
>There are/were twisted pair
>hubs with a 10BASE2 connector. I just went through the
>2-inch thick, 1999-2000 Black Box catalog
>(http://catalog.blackbox.com/BlackBox/Templates/blackbox/mainscreen.asp)
>and couldn’t find a thing that will do what you want. So, I
>guess 10BASE2 is getting pretty darn obsolete. Perhaps a
>visit to your local Computer Store will turn up an old hub.
>I sold mine.
I have just found:
Surecom EP-508T
9-Port 10BASE-T Mini Hub at
http://www.surecom.com.tw/pd508t.htm
It's got:
"Network Connector: 1 BNC port and 8 RJ-45 Ports"
They seem to have a local stockist but this particular model is not on their list, seems it's going to be fun 
One more question if I may, would it do the job? I mean, is as straightforward as connecting the coax to the BNC and an UTP to one of the RJs?
The idea is to build a small LAN behind an SMC 7008BR router/switch. I know it seems pathetic to go to the fibre optics via the 10M bottleneck but they hopefully will feel the limitations for themselves and press for a radical change sooner than later.
Thanks again
