5 Aug
2003
5 Aug
'03
6:11 p.m.
On Aug 5, 21:43, Tony Duell wrote:
> I've been asked about a quarter-inch tape
standard from 1976,
called
> ECMA-46.
I have here the manuals (user and technical) for a
Penny and Giles
'Data
Logger' -- actually a QIC drive with a RS232 or
current loop
interface.
The user manuals says
Recording Media : DC300A, DC300XL or equivalent 1/4in. data cartridge
conforming to ISO4057 (ECMA 46)
Recording Format : 1600 bpi phase encoded data to ISO 4057
[...]
What I don't know is wherte ISO 4057 and ECMA 46
are essentially the
same
thing, or whether the latter just specifies the
physical form of the
cartridge (The manual could be interpretted either way).
Neither do I, offhand, but virtually all the ECMA standards are
available online. Unlike some standards bodies, the ECMA believe they
should be accessible if people are to adhere to them. Anyway, ECMA 46
is at
http://www.ecma-international.org/publications/files/ECMA-TR/TR-046.PDF
BTW, many ECMA standards were adopted verbatim by ISO, so if you need a
copy of an ISO standard, and you know there's a corresponding ECMA one,
just download the ECMA version.
--
Pete Peter Turnbull
Network Manager
University of York
5 Aug
5 Aug
6:53 p.m.
Peter Turnbull wrote:
Neither do I, offhand, but virtually all the ECMA
standards are
available online. Unlike some standards bodies, the ECMA believe they
should be accessible if people are to adhere to them. Anyway, ECMA 46
is at
http://www.ecma-international.org/publications/files/ECMA-TR/TR-046.PDF
No, that's ECMA Technical Report TR/46, "Security in Open Systems - A
Security Framework".
Standard ECMA-46 doesn't seem to be online, which probably means they've
withdrawn it as obsolete.
- Paul
8 Aug
8 Aug
3:55 p.m.
In message <10308052307.ZM17611(a)mindy.dunnington.u-net.com>
Peter Turnbull <pete(a)dunnington.u-net.com> wrote:
Unlike some standards bodies, the ECMA believe they
should be accessible if people are to adhere to them.
Unlike the SSFDC group
(responsible for SmartMedia cards) and the IEC, then.
I applaude the CompactFlash group for their forethought in releasing the
specifications for CF to the world free-of-charge. SSFDC have released the
8MB and lower specs, but you have to pay $1000 per year (IIRC) for a copy of
the 128MB standards. CompactFlash cards are, FWICT, IDE flashdrives in a very
small case. The internal controller makes them easy to use, but they do tend
to be a bit expensive.
Don't get me started on the IEC - I wanted copies of the "standardised
symbols for electrical equipment" (IEC417, aka IEC60417) - the "I" and
"O"
power symbols, etc. A Japanese educational institution had all the main
symbols on their website for free download. I suspect IEC had something to do
with the removal of that site...
Later.
--
Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB,
philpem(a)dsl.pipex.com | ViewFinder, Ethernet (Acorn AEH62),
http://www.philpem.dsl.pipex.com/ | 8xCD, framegrabber, Teletext
Wanted: Heisenberg. Reason uncertain.
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days inactive
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philpem＠dsl.pipex.com