aks@anywhere.ucsb.edu (Alan Stebbens) (06/20/91)
Does anyone have some details on connecting an Apple Laserwriter to an
IBM RS6000/320? We've done this many times with Suns, and it is pretty
straightforward, but is proving difficult with our RS6000.
I believe we've correctly created the device (lp0), as well as the
appropriate virtual printer queue (ps0); each time we queue some output
to the printer, we get DEV_WAIT as the status for the printer, and we
don't see any activity on the TX serial pin.
We've done continuity checks and the cable is right; we're running a
pretty standard RS232 cable, and we've even swapped TX/RX with each
other and tried again. We've had the device attribute "DTR=" set to
both 'yes' and 'no' and it still doesn't work.
And, this printer works fine from a Sun serial port.
Can someone please give me a clue?
Thanks.
Alan Stebbens <aks@hub.ucsb.edu> (805) 893-3221
Center for Computational Sciences and Engineering (CCSE)
University of California, Santa Barbara (UCSB)
3111 Engineering I, Santa Barbara, CA 93106
--
Alan Stebbensgraeme@ccu1.aukuni.ac.nz ( Graeme Moffat) (06/21/91)
aks@anywhere.ucsb.edu (Alan Stebbens) writes: >Does anyone have some details on connecting an Apple Laserwriter to an >IBM RS6000/320? We've done this many times with Suns, and it is pretty >We've done continuity checks and the cable is right; we're running a >pretty standard RS232 cable, and we've even swapped TX/RX with each >other and tried again. We've had the device attribute "DTR=" set to >both 'yes' and 'no' and it still doesn't work. My experience, using only 3 wire cables (pins 2,3,7): -Printers on the serial port require pins 4&5 (CTS & RTS) on the RS6000 end to be jumpered, even though Xon/Xoff is specified on, and DTR off. -Terminals require pins 8&20 jumpered, using Xon/Xoff. -- Graeme Moffat g.moffat@aukuni.ac.nz \ Time wastes us all, Computer Aided Design Centre, Fax: +64-9-366-0702 / our bodies & our wits School of Engineering, Ph: +64-9-737-999 x8384 / But we waste time, University of Auckland, Private Bag, Auckland, NZ \ so time & we are quits