Date   : Fri, 29 Jul 2005 18:21:10 +0100 (BST)
From   : Pete Turnbull <pete@...>
Subject: Re: Econet-Ethernet bridge

On Jul 29 2005, 10:28, Mark Usher wrote:
>
> >Telling the difference is easy.  The version of
> >the module without collision detection has 4
> >chips, the one with has 6 chips.
> >4-chip modules should be discarded.
>
> I have two master econet modules here, both labelled on the circuit
board
> respectively Issue 1 and Issue 2. Both have 6 chips on them. Would
this
> suggest that there were 2 issues of the board with collision
detection?

I can't remember for sure, and all the modules I have left have the
collision detect so I can't simply go and look, but is it possible that
the version without the collision detect had a different part number?
 The timeline was that the very first ones had the circuitry, as far as
I recall, then it was decided that it wasn't necessary, and finally it
was realised that life was rather better if it were reinstated :-)


-- 
Pete                                           Peter Turnbull
                                               Network Manager
                                               University of York