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[Gerard Visser <gvisser AT indiana.edu>]

hi Flemming,
	That is a good point; I don't think it is any problem to have various different 
lengths. Of course we should have some spares prepared for all lengths we use, 
so the number of T-boards and connectors to purchase would go up. But there 
shouldn't be any functional reason to match lengths, e.g. the timing is 
adjustable individually per group (i.e. cable).

        - Gerard

On 7/14/2020 10:48 AM, videbaek wrote:
> Hi Felix,
>
> Back in March I assembled a document about service requirements.
> You can find it on 
> https://drupal.star.bnl.gov/STAR/blog/videbaks/fst-info-page
> (version 2.1) It also has drawings of the 'old' patch panels for IST.
>
> I believe Rahul has determined where the patch-pnanels and cooling manifolds had 
> to be mounted on the TPC wheel.
>
> It is not clear to me that we can get away with just one cable length. The FST 
> setup is not so nice and symmetric as IST. The disk are at different positions, 
> and half the cables starts out from each module in the wrong direction nad will 
> have to turn around.
>
>
>
> On 2020-07-14 10:19, Gerard Visser wrote:
> > Hi Felix,
> >     I would merely add that we should hope to determine a length which
> > fits but without too much excess cable. What excess there is, would
> > have to be taken up in the lay of the cable outside the cone assebly
> > as it plugs into the patchpanel board assembly. We should locate some
> > pictures of the installed & cabled IST patchpanel boards for your
> > reference. It should look similar.
> >     Sincerely,
> >
> >         Gerard
> >
> >
> > On 7/14/2020 10:06 AM, Capotosto, Michael wrote:
> > > Hey Felix,
> > >
> > > I've attached the cable drawing for the purple cables we had assembled. They 
> > > were 8' long, +/- 1", from connector to the wires on the t-board.
> > >
> > > --Mike
> > >
> > > -----Original Message-----
> > > From: Star-fst-l <star-fst-l-bounces AT lists.bnl.gov> On Behalf Of Ye, Zhenyu
> > > Sent: Tuesday, July 14, 2020 9:36 AM
> > > To: star-fst-l AT lists.bnl.gov
> > > Subject: [Star-fst-l] FST Inner Signal Cable with T-board
> > >
> > > Hi Felix,
> > >
> > > To follow up on your question on the (purple) inner signal cable and T-board, 
> > > a picture can be found on slide 4 of the following slides 
> > > https://drupal.star.bnl.gov/STAR/system/files/FstModule3InnerSector.pdf
> > > I hope it gives an idea the orientation of the cable/T-board.
> > >
> > > About the cable length, if I remember it correctly we had a rough estimate 
> > > from Rahul, and Mike used it to build the prototype purple cables. I think a 
> > > precise estimation is still needed, which I guess you will get from looking 
> > > at the integration drawings.
> > >
> > > Best,
> > > Zhenyu
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