22 Jul
2005
22 Jul
'05
1:10 p.m.
At 12:13 PM 7/22/2005 -0400, you wrote:
It sounded like maybe the question was whether the standard software
to utilize the reader/punch knew about a reader/punch on a serial
port vs. the standard PC11 interface. I don't know the answer to this
question, but I would guess that Remix (or some 3rd party) made a PC11
compatible interface for the Remix reader/punch.
--tom
>>>> "Ashley" == Ashley Carder <wacarder at earthlink.net>
writes:
Ashley> Today I obtained a Genrad 1797 programming station. It
Ashley> consists of a PDP-8a, 3 RK05s, a Decitek paper tape reader, a
Ashley> Remix paper tape punch, and a Genrad interface unit. Also
Ashley> with the system is a DecWriter III and 3 RK05 16 sector
Ashley> packs, as well as an alignment pack. I have not begun to
Ashley> study the system yet. Quick questions:
Ashley> 1) The Decitek reader appears to have a serial (EIA / RS232)
Ashley> interface. Can someone point me to some documentaion on how
Ashley> this might be interfaced to a PDP-11?
Ashley> 2) Same question as #1, but for the Remix paper tape punch
Almost all the serial interfaces have RS-232 options -- hook it up to
your RSTS system...
Assuming that things obey the standard, which pre-PC stuff usually
did, you can tell from the connector gender whether you need a null
modem or not. If the connector is DB-25 male, use a null modem cable;
if female, use a straight through (DTE to DCE) cable. The former is
what I would expect, but surprises happen...