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- From: Stephen Usher <Stephen.Usher@earth.ox.ac.uk>
- Subject: Re: SCSI drivers (yet again)
- Date: Sat, 18 Jun 1994 22:19:48 +0100 (BST)
- In-Reply-To: <9406181704.AA14185@math.uni-muenster.de> from "Markus Gutschke" at Jun 18, 94 07:04:47 pm
- Mime-Version: 1.0
-
- >> I bought it from a shop in Witney, Oxfordshire, which had a large number of
- >> these boxes without documentation, cables or power supplies (5 to 12 volt AC
- >> or DC, 20W). I can fish out the address if you want it.
- >>
- >> The boxes were originally designed to be used with the Mac Plus, so it's
- >> standard Mac SCSI (25 pin D connector) and the unit is terminated internally.
- >>
- >> It should work with ACSI and a convertor, though I can't guarantee it. It
- >> works on the TT (well it gets reset and accessed by AHDI) as long as it's
- >> not been set to a SCSI ID directly after a disk drive and you use AHDI. AHDI
- >>
- >
- >I do not expect any problems with connecting the hardware to the SCSI
- >(or ACSI) port, but I am uncertain about the software. As far as I
- >know, ACSI is only able to send class-0 commands; will that be
- >sufficient for using the box? Besides, what other hardware will I need
- >to set up a network? Can I just link two or more of these boxes with
- >twisted-pair wire, or do I need interfaces for that?
-
- I've still to read up on SCSI commands, the commands the box understands are
- all 6 bytes long:-
-
- 0x00 test unit ready
- 0x03 request sense
- 0x12 inquiry
- 0x1c receive diagnostics
- 0x1d send diagnostics
-
- 0x02 clear tallies
- 0x05 send ethernet packet
- 0x0e receive ethernet packet
- 0x06 set ethernet address
- 0x09 set multicast address
- 0x0c set packet reception mode
- 0x0d ethernet receive (OEM ROMs only)
-
- Two get a network working you will need:-
-
- two boxes
- two BNC coax T pieces
- two 75 ohm BNC terminators
- a length (greater than 2 metres) of coax cable with BNC connectors
- on each end.
-
- >
- >Thanx
- >
- >Markus
- >
-
- Steve
-
- --
- ---------------------------------------------------------------------------
- Computer Systems Administrator, Dept. of Earth Sciences, Oxford University.
- E-Mail: steve@uk.ac.ox.earth (JANET) steve@earth.ox.ac.uk (Internet).
- Tel:- Oxford (0865) 282110 (UK) or +44 865 282110 (International).
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