Are there any Econet enthusiasts here?
I've just bought most of an Acorn Econet fileserver (it's missing the 2
floppy drioves and their cables, the mainboard and PSU look intact).
The mainboard contains :
65C102 CPU
64K EPROM (2 off 27256). I've not tried to look at their contents yet
64K DRAM
WD2793 disk controller (not what I'd expect from Acorn)
6522 VIA
Real time clcok chip and backup battery
TTL glue
An Econet module (looks like the one used in a Master or Arc, the type
with the hardware collision detection). Oddly theres a 26LS30 on the
mainboard, does this thing source the Exonet clock too?
The PSU looks to be a normal switch-mode unit giving +5V and +12V
On the back are the 5 pin DIN econet socket, a 26 pin header identified
as 'Printer' (presumably wired as a BBC micro printer port) and a 34 pin
header. I am told this is to add a hard disk, and it looks similar to a
Beeb's 1MHz bus. I assume it takes the normal SASI host adapter and ST506
bridgboard (I have spares of those somewhere...)
On the front are 2 LEDs (power and mode) and what looks like a
reflectiove optoswitch (why?)
Can anyone tell me anything more about it, how to use it, what the
intenral links do, etc?
-tony
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