Does anyone know what this is or want it? It looks somewhat
collectable... I'm asking $25 for it, that's how much it'll cost me for
the switches and LEDs if I build my own frontpanel instead of re-use this
one's.
Here's a description, pictures to appear soon on
http://purdueriots.com/imgs/ called bie*.jpg
>From the date on the back, it looks to have been purchased in '78 or '79.
It's a 6800 based system that I picked up at Purdue Salvage for a couple
$$. It has 3 IO cards each with a 6821 on it, a MPU card with a 6800, a
ROM card, a front-panel card and some other card with (i believe) RAM of
some sort on it (chips are Intel P5101L's 22pin DIPs).
Front panel has 24 toggle switches w/LEDs (persumably for the IO), a
6digit 7seg display labeled TIME, 7seg labeled FAULT and a pair of 7seg's
labeled STEP. On the right, a 2x6 matrix of pushbuttons labelled 0-9 and
a pair labeled "S". Next to that, a 2x6 matrix of PBs with LEDs next to
them, labeled:
STEP BRANCH STEP NO.
PROG. START INST.
TIME ABORT MASK
OUTPUT ABORT ON/OFF
INPUT MASK ABORT STEP NO.
INPUT ON/OFF CLEAR STEP
Along the bottom, there's a row of switches, left to rigth:
POWER: Red push-on push-off square switch
AUTO/MANUAL: SPST keyswitch
EXAM LOAD/RUN: SPST keyswitch
PROGRAM: Set of four 'interlocked' buttons (only one is set at a time) 1-4
START: momentary PB
RUN, HOLD: interlocked PB's
JOG: momentary PB
RESET: FAULT, SYST: momentary PB, ALARM: push-on/push-off
ABORT: momentary PB
The case is rackmount, about 5U or 6U.
On the back:
50pin "Amphenol" scsi-style connector. Connected to three IO cards.
Power inlet, outlet, fuse
SONALERT beeper.
Received on Mon Apr 15 2002 - 16:02:21 BST