On 7/17/2001, 7:51:31 PM, "Jon Hart" <[EMAIL PROTECTED]> wrote regarding
Re: technolgy why does it have to have decisions:
> Get the 10bT + 10b2.
> To hook up 10bT for three machines you will need a hub ( not very
expensive,
> but still extra ).
even switches are now dirt cheap; i have an 8 port D-Link 10/100 Switch
that ran around $70 and works quite well.
> By getting dual parts you can start with 10b2, and if you need to go to
10bT
> you can later.
> Setting up a 10b2 network is very easy. you get two lengths of coax cable
> ( our local electronics store still sells a full range of coax parts ),
make sure the coax is RG-58 (50 ohm impedance); RG-59 is a video coax (75
ohm
impedance), and flakey things can happen when it is inadvertantly
installed in
a 10base2 network (i know this from direct practical experience.)
> three t junctions ( one for each machine ) and two terminators.
The terminators need to be 50 ohm terminators, as well, not 75 ohm.
The T junctions must be directly attached to the cards; you should not
use another length of coax between the T and the card.
> If you need more machines, or faster networking you can go to 10bT, and
get
> a switched hub.
Hubs are not switches. Repeater == hub; switch ~= bridge. I don't mean to
be
pedantic, but to a network engineer (which i was in a previous life),
these
are defined terms with specific meanings.
A "dual speed" hub is a funky combo of two repeaters (one 10baseT, one
100baseT)
and a bridge between the two. They are now only marginally cheaper than a
true
switch, and no bargain.
Richard
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