Using picoscope with USB to Ethernet bridge

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mikeB
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Using picoscope with USB to Ethernet bridge

Post by mikeB »

Hi
I would like to use one of your picoscopes remotely , up to 6km. I have existing single mode fibre cores available to use in the field and 6V available for powering a device attached to your picoscope in the field.

I have found a few usb to multimode fibe devices but a single mode interface with a long distance fibre link seems impossible to find.
I have two options I am considering and look to your advice.

1) Interface your picoscope to the usb port of a micro single board computer (SBC), in the field, running your application software. The Ethernet output of the SBC then connected to a Ethernet Electrical/optical device with a single mode optical fibre output. At the far end of the single mode fibre I would again use another Ethernet optical to electrical interface and plug into our network. The idea then would be to remotely login to the SBC running your software.
I would be interested if any of your forums discuss this and if you have recommendation for a very small form factor SBC I could use with enough memory etc for your application and able to run off 5 to 6V.
OR
2) Interface your picoscope to the usb port of a raspberry pi, which is implementing a usb to Ethernet bridge. The Ethernet output of the raspberry pi then connected to a Ethernet device with a single mode optical fibre interface. At the far end of the single mode fibre I would again use another Ethernet optical to electrical interface and a raspberry pi, again implementing a usb to Ethernet bridge, and connect the usb output to a laptop running your software.
Could you advise if you think this is possible and if so what, hurdles i may face and what is the protocol you use over usb.

Gerry
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Re: Using picoscope with USB to Ethernet bridge

Post by Gerry »

Hi Mike,

I would focus on extending the range by a remote platform running PicoScope 6 that you can log in to because extending the range of USB is prone to start up issues. We have a multistage connection protocol for our Devices, which involves enumerating to find them then, when found, dropping the connection to remake the connection to the selected item (in case of needing to switch to USB 3.00). This can cause problems even with straightforward USB Hubs, and extenders (with USB 3.00 we have only found one vendors USB to Fibre converter that actually works with our devices).

Regarding an SBC to use for our software, you can currently use a Raspberry Pi 3, with PicoLog 6 to log data from PicoScopes (see here: https://www.picotech.com/support/topic39489.html), and the Raspberry Pi 4, when it is available in November, looks like it should be able to handle PicoScope 6. There may be other SBC's that can currently run PicoScope 6, (especially on Linux), but I will leave that for other users to comment.

Regards,

Gerry
Gerry
Technical Specialist

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