On Mar 5, 18:16, Paul Koning wrote:
> The rules aren't quite what you said -- the transceiver rule is that
> you put them on the stripes. You can put transceivers on adjacent
> stripes.
You can, but I was always told (and read somewhere) there should be two
stripes between, not one.
> Cable ends are NOT at stripes; the recommended cable
> lengths are funny numbers chosen to get reflections not accumulate
> over multiple segments. The rule says "odd multiples of a half wave
> at 5 MHz, which translates to odd multiples of 23.4 meters.
I agree, I forgot about that. Oops!
--
Pete Peter Turnbull
Network Manager
University of York
On Mon, 8 Mar 2004 Guy Sotomayor <ggs(a)shiresoft.com> wrote:
> Hi,
>
> Does anyone know how much 3-phase power (at say 220v) a KL-10 requires?
>
> I just acquired some commercial space to move my collection into and I
> noticed today that there are several 220v 3-phase power drops that I
> hadn't noticed previously. I'm kind of hoping that I'll have enough
> 3-phase to be able to start resurecting my KL-10, but I need to know how
> much I need.
220V 3-phase? Hmm. I think somewhere around 40A per phase should do it.
We ran our KL-10 on 410V 63A/phase, but that was a bit overkill.
But I'm also pretty sure that 410V 16A/phase was not enough.
Johnny
Johnny Billquist || "I'm on a bus
|| on a psychedelic trip
email: bqt(a)update.uu.se || Reading murder books
pdp is alive! || tryin' to stay hip" - B. Idol
Any one have thoughts on 9-track tape drive "O" rings?
The O ring on my TS-11 was under compression for some time and appears
to have stretched to the point where it is too large to fit a tape on
the hub. I'm guessing this is a common problem.
I would think these O rings are pretty common. Does anyone have a
source?
-brad
>> DA26 : never seen it used
>
>Used on an NCD 88k color x-windows terminal for video. Probably also
>used on other things.
IIRC, its also used on the Apple DOS cards. I'd have to go check a cable
to be sure, but I'm pretty sure its 26 pins, in a DA shell (same size
shell as AUI uses)
-chris
<http://www.mythtech.net>
Hi all,
Recently I found this really cute, but weird-looking thingie. It
seems to be a handheld tool that allowed operators, field engineers
and so on to manually punch a bit of code onto paper tape, or to
modify (patch) an existing tape.
It was made by, or distributed by "Data Processing Accessories"
in the U.K.
Ideas, anyone?
--f
On Mar 5, 22:47, Tony Duell wrote:
> > As Paul and der Mouse suggested, I agree that it would be worth
making
> > up a short flexible AUI cable. Cat 5 is 100-ohm, and ribbon cable
is
> > not far off that IIRC; you could use STP instead of UTP to get the
> > shield (some Sun cables are STP), or just ignore it for really a
short
> > (a few inches) cable. Or a chunk of old good-quality serial cable
>
> I wonder if IDC cable would work for a very short (a few inches)
length?
> Just enough to turn the transceiver 'round the corner' or whatever.
I'm fairly sure it would, and that's what I meant when I mentioned
ribbon cable. Didn't der Mouse suggest that? I have a Newbridge ATM
Route Server which is a Sun chassis mounted in a Newbridge box, and I'm
fairly sure it has a similar arrangement to connect the Sun port to the
panel on the Newbridge case.
I'm a great believer in adhering to standards. Most of the time :-)
In this case the standard says, in effect, "use this cable and this
layout and it's guaranteed to work". It doesn't say it's guaranteed
not to work if you don't :-)
--
Pete Peter Turnbull
Network Manager
University of York
