[dsg-hallb_rich] [EXTERNAL] USB extender for raspberries

[Luca Barion]

On Wed, 20 Apr 2022 16:20:28 +0000
Tyler Lemon <tlemon at jlab.org> wrote:

> Hi Luca,
> 
> I've ordered two of the USB repeater cables.

Perfect, thanks!

> For the Raspberry Pis, where are they located on Sector 1?
> 
> Getting the Raspberry Pis may have to wait until closer to the installation time of RICH-II since Sector 1 isn't very accessible unless the forward carriage is moved.

I am not sure, since I just prepared them before, but I was not there during the final Sector 1 installation; I think that they should be close to the patch panels. Anyhow they must be outside the Sector 1 volume, not inside.

Ciao,
Luca
 
> 
> ________________________________
> From: Luca Barion <brnlcu at unife.it>
> Sent: Wednesday, April 20, 2022 5:41 AM
> To: Tyler Lemon <tlemon at jlab.org>
> Cc: dsg-hallb_rich at jlab.org <dsg-hallb_rich at jlab.org>; Marco Contalbrigo <mcontalb at fe.infn.it>
> Subject: [EXTERNAL] USB extender for raspberries
> 
> Ciao Tyler,
> I just talked to Marco regarding the unavailability of Raspberries worldwide; we decided to go with the old 2 Raspberries already installed on Sector 1. We plan to relocate one of those on Sector 2. In order to connect both cameras of each sector to one Raspberry we need proper active USB extender, so we ask if you can buy two of these:
> 
> https://urldefense.proofpoint.com/v2/url?u=https-3A__export.rsdelivers.com_product_roline_12041089_roline-2D1-2Dport-2Dusb-2D20-2Dusb-2Dextension-2Dcable-2Dup-2Dto5m_6665117&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=xJvfz8d-IPB1CokOM-U5MA&m=X5Enf1yoTX-pA8G_tKMvO7jrDlUj-PpjKbTf9cbAzLfL_efEAEiUtGi1BYRXr1ir&s=uYpoVTgrPr1m4fvMAMkDgVg6Py8TlRVtqhpiv83fXKQ&e=
> 
> They are reported in stock, but if you have trouble with this you can order also somewhere else, just check that it's USB2.0, the length is 5m and that it's an active extender: the simple passive prolongation cables will not work, since there are already many meters inside the RICH and the maximum length of USB2.0 is 5m.
> 
> Thanks,
> Luca
> 
> --
> Luca Barion <luca.barion at unife.it>
> https://urldefense.proofpoint.com/v2/url?u=http-3A__www.fe.infn.it_-7Ebarion_&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=xJvfz8d-IPB1CokOM-U5MA&m=X5Enf1yoTX-pA8G_tKMvO7jrDlUj-PpjKbTf9cbAzLfL_efEAEiUtGi1BYRXr1ir&s=-k2_RCD_clu4vu4MlnSaj2dudy0WiaqnNe0JjzSucjI&e=
> INFN & Universita' di Ferrara - Blocco C
> Dip. di Fisica - Ufficio C209
> Polo Scientifico-Tecnologico
> via Saragat 1, 44122 Ferrara - ITALY
> tel. (+39)  0532 97 4322  fax 4343
> 
> [Juelich: 243C  tel. (+49) 02461 61 4162  fax 3930]


-- 
Luca Barion <luca.barion at unife.it>
https://urldefense.proofpoint.com/v2/url?u=http-3A__www.fe.infn.it_-7Ebarion_&d=DwICAg&c=CJqEzB1piLOyyvZjb8YUQw&r=Ry65GV1L9CI4W-wouYF1Yh0O9PuhLc4ZWUkBi_Op2h8&m=PkFl105zsi7pWjXsFtadBti7dldkwxJXRQtCt4ElXBy53JriPhHeJERFuehTAwTJ&s=ZWB_JIVTCRzhowOsMkn3rhtQi0xW32cs8eAgCjTzIwk&e= 
INFN & Universita' di Ferrara - Blocco C
Dip. di Fisica - Ufficio C209
Polo Scientifico-Tecnologico
via Saragat 1, 44122 Ferrara - ITALY
tel. (+39)  0532 97 4322  fax 4343

[Juelich: 243C  tel. (+49) 02461 61 4162  fax 3930]