Fanuc PPR - Paper Tape Punch, Printer and Reader : Not quite working

[Bill Degnan]

I have a dostek 440a for sale and notes about my fanuc tape unit here.
https://www.vintagecomputer.net/fanuc/index.cfm

On Sat, Apr 9, 2022, 6:51 PM Eric Moore via cctalk <cctalk at classiccmp.org>
wrote:

> Hi Martin, I use the PPR for all kinds of paper tape shennanigans.
>
> https://youtu.be/hGr0F9a7x1A
>
> Remove all but the first jumper, and that may help with your issues. I
> found at one point the jumper settings, but will need to search.
>
> -Eric
>
>
>
> On Sat, Apr 9, 2022, 4:56 PM Martin Bishop via cctalk <
> cctalk at classiccmp.org>
> wrote:
>
> > A nicely made yellow box with a rather poor manual - both lost in
> > translation and limited in scope.
> >
> > Working on setting one to work, but can't get anything out of the serial
> > port.  In drives the punch, and the punched data verifies (based on a
> QL).
> > In also drives the printer, although somewhat garbled, perhaps due to BCD
> > coding or perhaps due to invalid parity (which is configured as no
> check).
> > The reader 'reads' tape both in response to X/ON over RS232 and in
> response
> > to front panel keys.  However, nothing is emitted onto 232.  The D25 -
> D-9
> > transition has all the RTS/CTS and DSR/DTR/DCD lines knitted
> appropriately
> > and indicating 'correctly' on blinkenlites.  Interestingly, on long test
> > tapes the reader does not fall off the end but stops, repeatably after
> ~49"
> > which is remarkably close to 512 octets.  Finally, the CNC termination
> > octets : % (ASCII) and 0x80 (BCD : RS-244) don't seem to impress the
> reader
> > - nothing changes.
> >
> > Specific queries:
> > - Are there any magic control codes or handshaking rituals to coax data
> > out of the reader
> > - Is the PPR to CNC Controller interface protocol manual available as pdf
> > - Where can I find drawings for the PPR's electronics, most importantly
> > the main board (with its 8031)
> > - Suggestions on how to proceed with setting to work / fault diagnosis
> > - Has anyone house trained one of these to read PDP-11 absolute binary
> > tapes, their target market was G code (text)
> >
> > Martin
> >
>