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Hi Brad,</div>
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<br>
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Thanks for the clarification.</div>
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We can go ahead an put in the PR for the Radiall connectors, crimpers, and insertion tool.</div>
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We'll let you know when we've submitted it for your signature.</div>
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<br>
We are still waiting to receive an official quote for the cable from General Wire, but once we get that we'll submit that PR as well.<br>
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<br>
Thanks,</div>
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Aaron<br>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> Brad Sawatzky <brads@jlab.org><br>
<b>Sent:</b> Thursday, August 13, 2020 12:03 AM<br>
<b>To:</b> Aaron Brown <ambrown@jlab.org><br>
<b>Cc:</b> dsg-hallc_nps@jlab.org <dsg-hallc_nps@jlab.org>; Patrizia Rossi <rossi@jlab.org><br>
<b>Subject:</b> Re: [Dsg-hallc_nps] Procurement for cabling materials</font>
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<div class="PlainText">Hi Aaron,<br>
<br>
For 7030 cards there are 36 independent HV channels, 3 returns, and a<br>
safety-loop interlock. That is 40 conductors. A couple extra returns<br>
certainly wouldn't hurt so the 42-conductor cable should work well.<br>
<br>
We have no plans to buy 48 channel modules at this time.<br>
<br>
The safety-loop will need to be exposed at the NPS end in some fashion.<br>
We should talk about how that might be implemented in a future meeting.<br>
<br>
The lead times you mention below should be no problem. We can arrange<br>
for Tech staff support as needed.<br>
<br>
-- Brad<br>
<br>
On Wed, 12 Aug 2020, Aaron Brown wrote:<br>
<br>
> Hello Brad,<br>
> We are ready to procure the wires to make the 140' multi-conductor cables<br>
> for NPS.<br>
> We would like to know just how many internal conductors will be needed, 42<br>
> or 52?<br>
> We have received a price for the 42-conductor wire (which can be used for<br>
> the 36 channel CAEN modules) of $4.45/ft for 6000 ft. of wire.<br>
> We would need to get a price for the 52-conductor wire. This would be for<br>
> modules that have 48 channels, if in the future you want to use such<br>
> modules.<br>
> At the moment, I believe that all modules to be used will be the 36 channel<br>
> type so the 42-conductor wire should be sufficient, is this correct?<br>
> There is a lead time of 4 to 5 weeks for the wire.<br>
> In regards to the length of the wire, we are investigating if the<br>
> manufacturer (General Wire) can cut the wire to a specified length.<br>
> If this is possible, we would purchase 34 142' spools.<br>
> If the manufacturer cannot cut the wire to length for us, then we would<br>
> purchase six 1000' spools and Hall C technical staff would need to cut the<br>
> wire to length of 142' (leaving ~2 ft. extra for each wire for cable<br>
> fabrication).<br>
> We already have a quote from CAEN for the 52-pin Radiall connectors (40<br>
> connectors totaling $17,587).<br>
> There is a 12 week lead time for the connectors.<br>
> While waiting for a response from the French engineering team regarding the<br>
> SAMTEC connectors, we are researching alternatives that will work for the<br>
> operating voltage of 1100 V.<br>
> If you have any questions or concerns, please feel free to reach out via the<br>
> mailing list.<br>
> Best regards,<br>
> Aaron Brown<br>
<br>
-- <br>
Brad Sawatzky, PhD <brads@jlab.org> -<>- Jefferson Lab / Hall C / C111<br>
Ph: 757-269-5947 -<>- Fax: 757-269-5235 -<>- Pager: brads-page@jlab.org<br>
The most exciting phrase to hear in science, the one that heralds new<br>
discoveries, is not "Eureka!" but "That's funny..." -- Isaac Asimov<br>
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