[Halld-tracking-hw] Signal hook-up cables.

[Curtis A. Meyer]

That appears to be ok based on our initial tests. Also, being able to 
come up from the
bottom of the board can help.

    Curtis
On 4/20/11 10:00 AM, Fernando J. Barbosa wrote:
> Hi Curtis,
>
> Is there enough space to use these terminators, considering the bend 
> radius?
>
> Best regards,
> Fernando
>
> Curtis A. Meyer wrote:
>> Hi Everyone -
>>
>>     I have attached a picture of the coax connector we want to use to 
>> connect the
>> wires to the the transition board. While we do not have a rating from 
>> the manufacturer,
>> we tested this to 7500V (the maximum of our local supply) without a 
>> problem. In fact,
>> this was higher than the simple soldered connections.
>>
>>     We also believe that the use of these connectors will
>>
>> 1)  Reduce the time to manufacture the cables by quite a bit, thus 
>> saving
>>      money there.
>>
>> 2) Reduce the time it takes to make the solder connections to the 
>> transition
>>     board, thus saving money there.
>>
>> 3) Provide a more robust connection to the transition board that 
>> could actually
>>     be unsoldered if we needed to.
>>
>> 4) Essentially protects most of the transition board region from 
>> exposed high voltages
>>     and sharp edges.
>>
>> 5) Allows us to have the two soldered pins either go down through the 
>> top of the
>>     transition board, or come up through the bottom. This will allow 
>> us to make some
>>     wires shorter than they would need to be other wise.
>>
>>     The cost of these parts is about 13k$, but we think that the 
>> above savings and benefits
>> will more than pay for this. Unless there are serious complaints, we 
>> are going to order
>> ~3700 of these this week. There is a six-week delivery on them.
>>
>>        Curtis
>>
>>
>> ------------------------------------------------------------------------
>>
>> ------------------------------------------------------------------------
>>
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-- 
Prof. Curtis A. Meyer		Department of Physics
Phone:	(412) 268-2745		Carnegie Mellon University
Fax:	(412) 681-0648		Pittsburgh PA 15213-3890
cmeyer at ernest.phys.cmu.edu	http://www.curtismeyer.com/