25 Aug
2005
25 Aug
'05
8:16 a.m.
Does anyone recognize this card?
<http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/network%20card.jpg
I found it in a PDP-11/44 but I couldn't find a
model number or
manufacturer's name on it. The other end of the four red cables
connect to
four BNC connectors on the back of the cabinet and are marked Network
Ports. see
<http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/back3.jpg>
Joe
25 Aug
25 Aug
12:57 p.m.
On Thu, 25 Aug 2005 12:16:22, Joe R. <rigdonj at cfl.rr.com> wrote:
The BNC connectors are a bit novel if it is SDI.
Simon
--
------------------------------------------------------------------------
"Well, an engineer is not concerned with the truth; that is left to
philosophers and theologians: the prime concern of an engineer is
the utility of the final product."
Lectures on the Electrical Properties of Materials, L.Solymar, D.Walsh
Does anyone recognize this card?
<http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/network%20card.jpg
Cabling looks like SDI.
I found it in
a PDP-11/44 but I couldn't find a model number or
manufacturer's name on
it. The other end of the four red cables connect to
four BNC connectors on the back of the cabinet and are marked Network
Ports. see
<http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/back3.jpg> 
1:21 p.m.
>>>> "Simon" == Simon Fryer
<fryers at gmail.com> writes:
Simon> On Thu, 25 Aug 2005 12:16:22, Joe R. <rigdonj at cfl.rr.com>
Simon> wrote:
> Does anyone recognize this card?
> <http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/network%20card.jpg
Simon> Cabling looks like SDI.
Agreed.
> > I found it in a PDP-11/44 but I couldn't
find a model number or
> manufacturer's name on it. The other end of the four red cables
> connect to four BNC connectors on the back of the cabinet and are
> marked Network Ports. see
> <http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/back3.jpg>
Simon> The BNC connectors are a bit novel if it is SDI.
If they were TNC (threaded not bayonet) I'd suspect it to be a CI
interface card (from an HSC50 or the like).
It doesn't look like a DEC board (unless the digital logo is on the
other side). The cable attachment for those coax cables doesn't have
a DEC look to it, either. And the picture of the back has a mil-spec
look to it. I wonder if this is a military databus interface.
It's hard to tell from the back panel photos. Are those connectors
actually BNC, or are they like BNC but a bit smaller? Do they have
three or four prongs instead of the conventional 2 bayonet prongs? If
so, they'd be TPS connectors, which fits the databus hypothesis.
paul
1:17 p.m.
Joe R. wrote:
Does anyone recognize this card?
<http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/network%20card.jpg
Looks like a CI, no? But I didn't know that you could put a Unibus CI
in a PDP-11. I thought those were for just the VAX-11's.
Peace... Sridhar
I found it in a PDP-11/44 but I couldn't find
a model number or
manufacturer's name on it. The other end of the four red cables connect to
four BNC connectors on the back of the cabinet and are marked Network
Ports. see
<http://www.classiccmp.org/hp/Stuff%20Found%20at%20Rogers/back3.jpg>
7253
days inactive
7253
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