Atom Econet Node

The Atom Econet Node connects to PL8 and fits inside the case, for this reason it is a long thin PCB that just fits along the top of the keyboard, a flying cable leaves the back of the Atom case and is terminated with a 5-pin DIN socket.

PL8 is strangely omitted from the Atom schematic, here are the connections:

*active for $B400 to $B7FF (comes from IC49 pin 5)

As well as the Econet PCB an NFS EPROM must also be fitted in socket IC24 of the main Atom PCB.

Schematics: 

I have found two versions of the schematic, Issue 2 includes clock generator and terminator circuits, these have been omitted on version 3.  I have only found photos of Issue 1 and 2 PCB's both of which have the clock generator and terminator circuits present.

• Atom Econet Interface Schematic 202.002 Issue 2 27 January 1981

• Atom Econet Interface Schematic 102.002 Issue 3 June 1982

Documentation:

None?

Photos:

Atom Econet Interface PCB Layout Issue 1 [11]

Atom Econet Interface PCB Layout Issue 2[11]

Replica Board:

I have made a replica of this board details of which can be found here:

• Atom Econet Node Board

Back to Atom Computer

Acorn Home Page