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[Gerard Visser <gvisser AT indiana.edu>]

hi Maowu and Jianing,
	I think those four big holes don't really serve a purpose -- however I'd also 
say that we haven't seen all the details of how the cable will be routed and 
secured along the aluminum mounting ring so maybe it is premature to say these 
holes don't help.
        It would be best to delete them if they really don't have a purpose.
	The jumper can be deleted, the bias lines will not be tied together on T-board 
nor elsewhere. Let's delete the jumper.
	The two new 24 AWG ground wire soldering holes, maybe should be in the right 
half of the board as seen in your picture? Is that feasible? I think it may work 
out a little neater if they are a little bit away from the cable wire holes. But 
we can consider any good options.
        Sincerely,

                Gerard


p.s. I am reminded from your picture that two of the four existing mounting 
holes for the T-board are very near an edge. When things are refigured as 
necessary to allow for the tolerance of position of the outer hybrid's 
connector, maybe this will be a problem and maybe the size of the T-board has to 
be increased a little along that edge. I hope that the requirements about the 
outer hybrid connector w.r.t. the four mount points on the mechanical structure 
for the T-board can be defined in a drawing soon?



On 8/12/2020 10:16 PM, Maowu Nie wrote:
> Hi all,
>
> We are working on the re-design of T-board now. We want to know if the four 
> holes (red circle) are used or not. if not, Jianing plan to remove these holes, 
> then we have more space to place two GND holes as Gerard suggested, and also we 
> can move the jumper (J1) far away from the purple cable.
>
> The four holes are initially designed for fixing the purple cable, since they 
> are not used, we suggest to replace them as GND holes.
>
> Please correct us if we are wrong.
>
> Thanks,
> Maowu & Jianing
>
>
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