First topic: Cable integration in 3-D printed model
enclosure
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other HV cables Alternative view & option for feeding
inboard boardstacks power cable through. As discussed in our
meeting today.
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These are the best contacts I know of (and the contacts are the
most crucial feature of course) Used (equivalent D connector) in
STAR, excellent results Is 11mm height too much? Plastic dummy in
fab now at IU Received first parts, test assembled.
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SCROD connector board locking mezzanine connectors clk/data
cable(s), e.g. ultraflat cat 7 ?? strain relief Similar technology
was used at IU for STAR SSD That case was larger (taller) but it
can be shorter and smaller with the right cable for iTOP The solder
post terminals seen here were necessary because it was aluminum
wire cable, very fragile. We can solder direct to PCB for iTOP
Strain relief block custom fitted to cable shape. (Or can pour
epoxy for strain relief.) Making the clock/data cable connection
with Low height Proper strain relief on cable Small footprint on
SCROD
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Real cable that you can buy from someplace other than
amazon.com / no-spec asian import. With a real spec, including a UL
approval. VW-1 should be good enough for the short pigtail
connections. Anyway we have to deal with it for the power wires
too. At worst, in suitable flame-retardant sleeving it should be
approvable. I dont have this yet, so I dont know about flexibility.
But it is probably similar to the Fosmon brand cat7 I have, which
is pretty nice on flexibility. Termination may be tedious.
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OLD SLIDES / BACKUP
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Power supplies selection/evaluation Wiener ordered one module;
ships from factory 12/23, ETA IU week of 1/5 Andreas Ruben will
travel to IU to setup, and discuss requirements etc. Keysight i.e.
HP Matt shipped 2 nd unit here; examined but not powered yet
Excelsys Cost is such as to merit serious consideration Will sketch
out what I think would be a good design around these, and cost it
Matt has sent 2 Xg3 power modules (the ones wed use) and 6-slot
mainframe (not exactly the one wed use but close enough for
evaluation). The setup (Too) Heavy cables found for basic
preliminary evaluation of supplies with 0.5V drop restriction
Bought 12AWG cable for test (Belden #5000FE, 2C 12AWG + foil
shield) Sense cable found I think (have to get permission to
borrow) 200VAC power source found, 100VAC also possible (both 60Hz
though but should be ok); will start with 208VAC for simplicity IU
iTOP cables/power/cooling update 12/22/2014 also see other slides
on cooling G. Visser
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SCROD cables Have some super-limp flexible wire (1.8m, 16AWG
& 20AWG) samples from Jaguar Industries. Also some decent
(tougher but less limp) wire from Polar Wire Inc. Breaking news
just received from Jaguar 1000ft 16AWG white, ordered last
Wednesday (see next slide) Patch connectors See following slides
External power cables Urgently need info on cross-section
constraints (Est.