10 Mar
2003
10 Mar
'03
5:53 p.m.
Just had a bunch of "stuff" dropped off at
the store, not the least of
which 2 AT&T 3b2/EXP boxen with 5.25" floppies & several RJ-type ports in
the back, and we also got a x86-based AT&T box (386, methinks) and in it
there is an 8-bit board with the follwing markings:
"TIL-XPC" and "TIL SYSTEMS LTD. XPC91 REV 2.0"
It's got 4 RJ45 ports (I'm guessing RS-232, from all the 1488's &
1489's...) 4 R6551's, an MC68B54 & an MC68B09EP... Is this just a 4-port
serial board with the 6809 playing traffic cop, or is it an "elusive" OS-9
- based SBC?
I doubt it's the latter :-(. It sounds like a mult-port serial card (the
4 off 6551s...). The oddity is the 68B54. That's a synchronous serial
chip, used for some low-cost networks like Acorn's Econet (and for other
things of course). I wonder what it's doing here....
-tony