Star-fst-l mailing list

["Capotosto, Michael" <capotosto AT bnl.gov>]

Gerard, 

I'm going to be out of the office until Monday, 9/16. I'll get on it then.

--Mike Capotosto

-----Original Message-----
From: Gerard Visser <gvisser AT indiana.edu> 
Sent: Tuesday, September 10, 2019 9:44 AM
To: star-fst-l AT lists.bnl.gov; Capotosto, Michael <capotosto AT bnl.gov>
Subject: cables --- was: Re: [Star-fwd-upgrade-l] time of meeting

hi Mike,
        As Elke reminded this morning, given this revalation that there is 
far more space available for cable routing than in the IST and than used by 
IST-type cables, we need to consider cost (and flexibility) optimizing a bit.
        Could you identify commercial off-the-shelf cables to consider to use 
instead, and get some quotes?
        Probably that would mean *two* cables run together in some sleeving, 
like the prototype. A 16 pair foil shielded (or, if must be, foil and braid 
shielded) 28 AWG with some low loss insulation (polyproylene/polyolefin, FEP, 
or something like that), and a 4 conductor 22 AWG (2 pair is OK, 4 wires 
fine), PVC is fine. 
Both as flexible as possible, and with an eye to the total cost being less 
than that of the custom cable. You maybe should call Alpha Wire and Belden 
and get some consultation what may be best products.
        The cables used in the prototype might be reasonable, but those were 
chosen based on what we could get in a hurry from distributor stock in small 
quantity. 
Let's not worry about that, so maybe there are better/more flexible cables.
        By the way what is the max diameter of the prototype assembly? Can 
you measure and check w/ Rahul would they actually fit? From the drawing he 
sent it looks like the answer is yes.
        Sincerely,

                Gerard


p.s. I would avoid _foam_ polyethylene/polypropylene -- it is great stuff but 
soldering to the T board will be a royal pain.


On 8/27/2019 9:59 AM, Sharma, Rahul via Star-fwd-upgrade-l wrote:
> Hi All,
> 
> Please look at the attached pdf
> 
>   * Rahul
>