cjohnson@usceast.UUCP (Carnegie Johnson) (02/01/90)
Ok folks, I posted a message some time ago asking for help on the pin outs for the Rainbow printer port and no one responded, so I'll try again. Here's my situation. I bought a used DEC LA50 printer surplus but it did not come with the cable. I know that I can use my modem cable because it is the same as the printer cable (so I found by connecting it to the printer but I cant't see the wiring for this cable as it is molded). Switching between the two is a pain to say the least. I have the male/female DB25 connectors and about 12ft of 12-conductor cable (sheilded). I need this info please. If you can help, send me e-mail or post to this group. Thanks for any help/info. p.s. I would also like to know how to control the la50 (i.e. user manual) but this is not a priority. Anyone got any suggestions on how to get docs on the la50? Maybe from DEC? -- -- [generic signature] UUCP: ...usceast!calvin!username
GL250011@YUORION.BITNET (Nollaig MacKenzie) (02/02/90)
There doesn't seem to be a way to reply w/o sending to everyone,
so here goes...
From the Rainbow Tech Documentation:
Printer Port Interface Connector
Pin No. Signal Description Mnemonic Direction
1 Protective Ground PROT GND -------
2 Transmit Data TXD Input
3 Receive Data RXD Output
5 Clear to Send CTS Output *
6 Data Set Ready DSR Output *
7 Signal Ground GND -------
20 Data Terminal Ready DTR Input
* This output is always asserted high.
Is this of any use?
Cheers,
Nollaig MacKenzie
gl250011@orion.yorku.CA