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- From: cis501@clark.edu (Charles Boling)
- Newsgroups: comp.sys.ibm.pc.hardware
- Subject: Parallel Port Info Needed
- Summary: Need specs for Centronics Printer
- Message-ID: <1992Aug19.020134.28226@clark.edu>
- Date: 19 Aug 92 02:01:34 GMT
- Article-I.D.: clark.1992Aug19.020134.28226
- Organization: Clark College, Vancouver, Wa. USA
- Lines: 26
-
- Here's my problem:
-
- I have a Commodore-128 and a PC-clone both hooked up to a Star NX-1000 printer
- via a 36-pin switch box.
-
- Since it is a cheap switch box, instead of switching all 36 pins, it "cheats",
- leaving some pins unconnected, some looped back to others, and so forth.
-
- My Centronics-type cables are the same way.
-
- My Commodore serial-parallel interface requires 5vdc power on pin 19 of the
- centronics interface. The printer supports this, but since neither my
- switchbox nor the cable connecting it to the printer had pin 19 connected, I
- stole the wires from a pin it didn't need (don't remember exactly, but it was
- somewhere around pin 30) and put them on pin 19.
-
- Now, the MS-DOS machine doesn't print!
-
- I need to know the pins that are required for MS-DOS to communicate with the
- printer, so I can maybe steal ANOTHER wire that neither computer needs!
-
- --
- /\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\
- \ Charles L. Boling cis501@clark.edu Clark College /
- / cis501@wsuvm1.csc.wsu.edu Vancouver, WA USA \
- \/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/
-