>Terminators?  Concentrator?  It's going right over my head. :)  If you have 
th
> 3Com catalogue (which is very nice, BTW) could you point me to everything 
I'd
>need, if I have EtherLink III ISA 10BASE-T NIC with RJ-45 and BNC (model 
numbe
> 3C509B-TPC) cards on both computers (each computer with Personal Netware), 
to
>connect them via RJ-45; and then the same question with Coax instead?  I'd 
lik
> to know exactly what hardware I'd need for each of those besides the cards
> themselves.  I'd appreciate it if you'd do that for me. Better use model
> numbers so as not to confuse me. :)
Ok, whipping out my "3Com buyers guide"
For Coax network, you would need:
 1 set of "Thin Ethernet terminator kit (2-ohm 50 BNC terminators) - 3C535"
 2 pieces of "Thin Ethernet T connector, BNC - 3C539"
 1 of "Coax cable; BNC to BNC, 8 m (25 feet) - 3C63911"
This allows the computers to be placed up to 25 feet apart. Please contact 
3Com for longer cables.
--- BBBS/2 v3.42 ToMmIk-6v
---------------