Date   : Tue, 11 Jul 2006 16:37:51 +0100
From   : "Ian Wolstenholme" <BBCMailingList@...>
Subject: Re: Econet Socket Boxes

Yes, T-pieces are a bit more flexible but I still think they came out before
socket boxes.  My Econet upstairs is held together with T-pieces at the moment
since I ripped out all the wiring at Easter 2005 to expand it and I haven't got
round to it yet!

I think a T-piece is also required to use the Econet Test Box correctly.

The two-tone cased clock is the Level 1 or "symmetrical" clock because the
Mark and Space duration are the same; you set the clock speed by Hz or KHz
according to a link jumper.  The Level 3 clock in the "stylish" black box is an
asymmetrical clock because the Space can set longer than the Mark, as a
multiple of the Mark, so the network data transfer speed can be quicker.

Best wishes,



Ian

----- Original Message -----
From: Jules Richardson
To:   bbc-micro@...
Sent:  Tue, 11 Jul 2006 16:25:49 +0000
Subject: Re: [BBC-Micro] Econet Socket Boxes

Ian Wolstenholme wrote:
> Econet came out long before Econet socket boxes.  First there were
> T-pieces but before that you had a length of cable with a terminator
> at each end and you just cut a hole in the cable where you wanted
> a station and soldered a lead to it with a DIN socket at the other end.

I've got a whole bag of those T-pieces somewhere... I think they were used on 
a site to give more access points than the socket boxes could provide, though, 
rather than the sole means of linking everything together.

Somewhere I've got a clock box that is in a two-tone case - presumably from 
the days before Acorn were rich enough to use the stylish black boxes ;)

cheers

Jules