--- Bruce Lane <kyrrin_at_bluefeathertech.com> wrote:
> At 16:47 02-08-2000 -0700, Chuck wrote:
>
> >Ok, the "fibre channel company" disavows any knowledge of having ever
> >produced cards for Unibus :-)
Corporate Amnesia - if you talked to anyone, they probably weren't older
than those cards. :-)
> >I've got three boards that are made by
> >Emulex, go in the Unibus and are marked CS2110203/H2B. There are two 50 pin
> >connectors on the top (channel 0-7, 8-15), an LED labelled "fault", and two
>
> <snip>
>
> Exactly right on your guess that they're comm controllers. The kicker is
> that, in order to function properly, I believe they require the specific
> Emulex distribution panel.
>
> I could be wrong about that. I also (fuzzily) recall that the CS21 may
> in fact have RS232 outputs directly on those 50-pin headers.
I inherited numerous CS21s from Software Results. Depending on what PALs
are installed, they will show up as TTnn devices or TXnn devices. We
used Nevada Western RJ11 modular stuff around the office, so our hardware
guy made a pinswabber that massaged the 50-pin arrangement from the CS21s
into the telco-50 (RJ21?) that the Nevada Western stuff wanted (8 lines of
six wires each over the 25 pairs) We had a longish ribbon cable that
attached to the CS21, then outside the BA-11, it had a SCSI-1-style connector
that mated to our pinswabber, then a regular pair-1-to-pair-1-etc 25-pair
cable through the building to rack with multiple telco connectors on the
back and a sea of RJ11s on the front. The user side was 50-pin cables
from the rack to their offices with an aluminum block with two telco
connectors (in and out so you could daisy chain them) and 8 RJ11s that
we would stick their terminals into. The middle was a ratsnest of 1 to 3
foot RJ11 patch cables.
We would mark the office tiers of the patch panel with the name of the
person whose desk was nearest the block (small company in an industrual
park - no room numbers). The computer-side tiers were labelled like
"ROBIN::TXA", "TUNA::TTA", "JAGUAR::TXC", etc. Then play connect the
dots. If you needed to trace a line, doing manually took a few seconds.
We attempted to maintain a log, but it was never current (whose is?)
Anywhoo, nice cards. We didn't use the Emulex distribution panels,
but made our own arrangement. I am not certain, but they *might*
follow the DZ-11 pinout. It's worth checking first. Otherwise, making
a map of which pins on the connector map to which pins on the 1488/1489
line drivers, then take it to the other side and see what goes to the
data and handshaking pins on the UARTs. Doing one or two should
establish a pattern (and it's not like you have to do *both* connectors,
they are identical ;-)
-ethan
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Received on Sat Jul 14 2001 - 12:50:57 BST