RT Architecture?

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3 total messages Started by Elliott Wong Sun, 27 Dec 1992 21:52

#1205

Author: Elliott Wong
Date: Sun, 27 Dec 1992 21:52

2 lines
489 bytes

	The RT takes ISA cards right? Would I be able to use the RT's
cards in other ISA machines? (eg. 80286?)

Re: RT Architecture?

#1207

Author: Robert Lutwak
Date: Mon, 28 Dec 1992 13:55

20 lines
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In article <1992Dec27.215249.22018@mnemosyne.cs.du.edu> epwong@nyx.cs.du.edu  
(Elliott Wong) writes:
> 
> 	The RT takes ISA cards right? Would I be able to use the RT's
> cards in other ISA machines? (eg. 80286?)

The bus is the same.  Unfortunately, IBM never supported any of
the standard AT boards on it (at least not in AIX).  Similarly,
there is little software support on AT-class machines for the
RT boards.

One data point though, I use IBM 6157 Streaming Tape Drive and
controller from our RT on an AT, using the Sytron backup software,
without a hitch.

------------------------------------------------------
Robert Lutwak                           robert@amo.mit.edu
Atomic Resonance and Spectroscopy Laboratory
MIT

Re: RT Architecture?

#1218

Author: Mark Whetzel
Date: Wed, 30 Dec 1992 14:04

46 lines
2462 bytes

In article <1992Dec28.135504.22809@athena.mit.edu>, robert@amo.mit.edu (Robert Lutwak) writes:
> In article <1992Dec27.215249.22018@mnemosyne.cs.du.edu> epwong@nyx.cs.du.edu  
> (Elliott Wong) writes:
> > 
> > 	The RT takes ISA cards right? Would I be able to use the RT's
> > cards in other ISA machines? (eg. 80286?)
> 
> The bus is the same.  Unfortunately, IBM never supported any of
> the standard AT boards on it (at least not in AIX). 

Not exactly true, the following boards ARE supported in a RT running AIX:

  - AT Hard disk and floppy cotroller  (original 40 MB one).
     The R-40 Hard disk is the identical drive in the original AT 40 MB.
  - PC Monochrome adapter and display (IBM 5151). 
  - PC EGA adapter and display (IBM 5154).
  - AT Serial-Parallel adapter
  - PC Network adapter, original IBM PC LAN card broadband RF.
  - Ethernet adapter, Ungerman Bass made the ethernet boards for the
      RT, and these same cards do run in AT style machines.
  - AT 512KB Memory expansion card - but only in support for the
      AIX AT CO-processor card.
  - A few third party AT boards were supported by several vendors
    for a while. :-(

> Similarly, there is little software support on AT-class machines for the
> RT boards.

True.  Only those boards originaly designed for AT or PC style machines
were interchangable immediately.  Others MAY work, depending on the
design of the cards, and memory and I/O address conflicts. They of course
will need drivers and support code to be written.

> One data point though, I use IBM 6157 Streaming Tape Drive and
> controller from our RT on an AT, using the Sytron backup software,
> without a hitch.

Yep.  We originally used Sytos to exchange tapes between the RT and  
our PC's.

Later,
markw
-- 
M. Whetzel 
Home: markw@antimatr.hou.tx.us        | IBM RT/125 running AIX 2.2.1 
UUCP ..!uhnix1!lobster!antimatr!markw

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