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Article #1199

Several questions about NeXT hw

#1199
From: Pasi 'Albert' Ojala
Date: Mon, 05 Oct 1992 14:25
35 lines
1982 bytes
This is a forwarded message from: Juha Tuominen
I'm a new in NeXT world. I recently bought a 030-motherboard and now I'm up
to build a complete machine. Due to developement process several questions
came up. I hope hardware gurus/guys can email answers to these questions.

1. Does NeXT boot and operate normally if there's no floppy or optical drive
   connected?

2. Is it possible to connect different types of scsi harddrives NeXT at the
   same time? Some of the older Unix versions had some problems if drives were
   different.

3. I _NEED_ NeXTcube's expansion bus pin data sheet! Please E-mail it to me
   or give a ftp site or some information where to find it. At least (!) I
   need power and ground pins!

4. Is it possible to connect NeXT to a normal multi-sync monitor? Refresh rate
   is 68 Hz, hsync and vsync, video.. I can't see why not. How much does
   used mono displays cost today? How many watts +12 V and -12 V megapixel
   needs to operate?

5. I also need keyboard connectors pin data sheet and information about
   power-on/off pin. (active level etc.). Is the power pin somehow connected
   to the power supplier so that it know when to turn on or does it supply 
   power to the motherboard all the time and there's a switch on the
   motherboard which switches diskdrives and monitor on/off..?

6. Any chance to get a complete schematics of NeXT?

Thanks in advance.
-Juha
-- 
 Pasi Ojala         The number of people staring at you
 po87553@cs.tut.fi   is straightly proportional to the 
 albert@cc.tut.fi        stupidity of your action.
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From: po87553@cs.tut.fi (Pasi 'Albert' Ojala)
Newsgroups: comp.sys.next.hardware
Subject: Several questions about NeXT hw
Date: 5 Oct 1992 14:25:30 GMT
Organization: Tampere University of Technology
Lines: 35
Distribution: world
Message-ID: <1apj8qINNg4p@cs.tut.fi>
NNTP-Posting-Host: naakka.cs.tut.fi