1 Aug
2003
1 Aug
'03
9:42 a.m.
Hi,
I don't suppose anybody happens to know the right value of terminating
resistors to use on a Research Machines network? I was thinking of doing a
health check on my old 480Z fileserver, but can't remember what values I used
last time. I'm almost certain they were 50 ohm, but it'd be nice to know for
sure.
cheers
Jules
=====
Backward conditioning: putting saliva in a dog's mouth in an attempt to make a bell
ring.
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1 Aug
1 Aug
1:14 p.m.
I have no idea, but even if you are wrong by half, the amount of
reflection on the line will be negligible. For example, a source
impedance of 50 Ohm, and load impedance of 100 Ohms, produces an SWR of
2:1 and a reflection coefficient of 0.3333. The square of 0.3333 is
0.1111, or 1/9, fractional. This means that eight-ninths of the power
from your network card would actually be delivered to
the load (minus
any losses in the cable). The remaining one-ninth is reflected
from the
load and is only a minor source interference to the data on the line.
-Bryan
Jules Richardson wrote:
Hi,
I don't suppose anybody happens to know the right value of terminating
resistors to use on a Research Machines network? I was thinking of doing a
health check on my old 480Z fileserver, but can't remember what values I used
last time. I'm almost certain they were 50 ohm, but it'd be nice to know for
sure.
cheers
Jules
=====
Backward conditioning: putting saliva in a dog's mouth in an attempt to make a bell
ring.
________________________________________________________________________
Want to chat instantly with your online friends? Get the FREE Yahoo!
Messenger http://uk.messenger.yahoo.com/
21 Sep
21 Sep
6:29 a.m.
From: Jules Richardson
I don't suppose anybody happens to know the right value of
terminating resistors to use on a Research Machines network?
I was thinking of doing a health check on my old 480Z
fileserver, but can't remember what values I used last time.
I'm almost certain they were 50 ohm, but it'd be nice to know
for sure.
You've just asked in some newsgroup or other for RML docs and
software. I sent an email but your account seems to be over
quota (maybe lost of people are offering you docs :-)).
Anyway, I have a bunch of RML docs (service manuals and also
random software docs). If you (or indeed anyone else) has somewhere
I can ftp them too, let me know and I'll dig them out. It would
be great if someone would host them and make them available for
the world.
Antonio
--
---------------
Antonio Carlini arcarlini(a)iee.org
7:04 a.m.
On Sun, 21 Sep 2003, Antonio Carlini wrote:
You've just asked in some newsgroup or other for
RML docs and
software. I sent an email but your account seems to be over
quota (maybe lost of people are offering you docs :-)).
Nope, he's probably been spammed to death like the rest of the Internet.
--
Sellam Ismail Vintage Computer Festival
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7:42 a.m.
Hiya,
You've just asked in some newsgroup or other for
RML docs and
software. I sent an email but your account seems to be over
quota (maybe lost of people are offering you docs :-)).
Sellam was exactly right - I'm drowning in a sea of 150KB virus emails here :\
(So far they don't seem to be showing any sign of slowing down either, so I'm
semi-unobtainable until things die down a little)
Thanks for thinking of posting here.
Anyway, I have a bunch of RML docs (service manuals
and also
random software docs). If you (or indeed anyone else) has somewhere
I can ftp them too, let me know and I'll dig them out. It would
be great if someone would host them and make them available for
the world.
Very much interested; those would be great. I don't have any 380Z or 480Z docs
at all other than a 3rd party BASIC manual for the 480Z. Been searching for
quite a few years too!
Do you have an estimate for how much storage space would be needed? I can
likely sort something out; certainly a temporary home until I can put something
permanent together.
cheers
Jules
=====
Backward conditioning: putting saliva in a dog's mouth in an attempt to make a bell
ring.
________________________________________________________________________
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11:36 a.m.
Sellam was exactly right - I'm drowning in a sea of
150KB
virus emails here :\ (So far they don't seem to be showing
any sign of slowing down either, so I'm semi-unobtainable
until things die down a little)
http://popfile.sourceforge.net has been a tremendous help
since Friday (nearly 2000 of the bl**dy things!). Be careful
when setting it up during the current flood - without some
non-spam emails it can easily get to think that it's ALL
spam! (So if the rest of you wouldn't mind upping the
posting rate it would be very much appreciated .. :-))
Very much interested; those would be great. I
don't have any
380Z or 480Z docs at all other than a 3rd party BASIC manual
for the 480Z. Been searching for quite a few years too!
Two people have piped up so far so they'll be heading there
first (see what happens when you don't sit in fron of the
computer 24/7 :-)) so they'll be on the net soon, but I
can upload directly to you once those transfers are done.
Do you have an estimate for how much storage space
would be
needed? I can likely sort something out; certainly a
temporary home until I can put something permanent together.
525MB for the RM stuff. There's also 160+MB of Compaq 286
era (Tech Reference vols 1 & 2) if you want it.
Antonio
--
---------------
Antonio Carlini arcarlini(a)iee.org
22 Sep
22 Sep
3:24 p.m.
Antonio Carlini wrote:
Two people have piped up so far so they'll be heading there
first (see what happens when you don't sit in fron of the
computer 24/7 :-)) so they'll be on the net soon, but I
can upload directly to you once those transfers are done.
The 21 manuals from Antonio are now online. Suck 'em up!
http://vt100.net/rm/docs/
- Paul
3:54 p.m.
Guys,
Fantastic!! :-)
I take it they're all just straight image scans of pages, encapsulated in pdf
files at present? I hope that's what accounts for the lare file sizes!
Presumably the items in plain text with no link haven't been found yet? I wish
the docs for the fileserver which I have hadn't been recycled by the school at
which it lived before I got hold of the machine :-( Chances of finding those
docs are pretty slim to say the least.
Great effort though!
cheers
Jules
=====
Backward conditioning: putting saliva in a dog's mouth in an attempt to make a bell
ring.
________________________________________________________________________
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Messenger http://mail.messenger.yahoo.co.uk
Two people
have piped up so far so they'll be heading there
first (see what happens when you don't sit in fron of the
computer 24/7 :-)) so they'll be on the net soon, but I
can upload directly to you once those transfers are done.
The 21 manuals from Antonio are now online. Suck 'em up!
http://vt100.net/rm/docs/
5:52 p.m.
Jules Richardson wrote:
I take it they're all just straight image scans of
pages, encapsulated in pdf
files at present? I hope that's what accounts for the lare file sizes!
Yes. I forgot to mention that they are being OCRed overnight, and I'll
link in the raw text later.
Presumably the items in plain text with no link
haven't been found yet?
I've just had a quick read of some of the manuals to find those other
references.
I'll try to make a list of the software I've got as well. I think it's
mostly Heinemann titles, but I can't remember whether it's for the 380Z
or 480Z.
- Paul
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