Rigol LA probe with Siglent Osci? - Page 1
Forum section: electronics / testgear

author: pubgrub
author_rank: Newbie
timestamp: June 05, 2025, 09:11:58 am
content: Hi,I have a Rigol RPL2316 probe and want to use it on my Siglent SDS2104X Plus to avoid buying a SPL 2106.The specs seem quite similar.I have seen several posts describing complete builds of the probe. If I could use the Rigol one I would only have to build an adapter from Siglent to Rigol connector.Is this feasable ?And does anyone here know where in the Rigol cable assembly the electronics are located? There is the main plug that goes into the scope, then the two connectors on the other end of the cables and the RPL2 adapters.Thanks for any help!MikeEdit:Here are the specs of the two probes:https://www.siglent.eu/product/1156477/siglent-spl2016-16-channel-logic-probe-modulehttps://beyondmeasure.rigoltech.com/acton/attachment/1579/f-0639/0/-/-/-/-/RPL2316%20User%20Guide.pdf

author: tautech
author_rank: Super Contributor
timestamp: June 05, 2025, 12:38:41 pm
content: Quote from: pubgrub on June 05, 2025, 09:11:58 amWelcome to the forum.SPL2016 has a PCIe PCB edge connector with the mating socket in the scope, is the RPL2316 different ?Several brands use a very similar LA probe and all the info to build one is in this thread:https://www.eevblog.com/forum/testgear/diy-logic-analyzer-probe-and-pods-for-siglent-scopes/

author: pubgrub
author_rank: Newbie
timestamp: June 05, 2025, 01:02:27 pm
content: Thanks for your answer.Its the same socket, but upside down, the cutout around the socket is smaller, so the Rigol plug does not fit through. Also I guess the pinout will be different.If it's technically/electronically possible to use the Rigol cable, I would try to build an adapter within I could reorder the pinout.If the circuits are located in the adapter part, I could even just use those, which would make the probe side of the adapter even easier to make.Mike

author: KungFuJosh
author_rank: Super Contributor
timestamp: June 05, 2025, 01:07:50 pm
content: If the connector is the same without the housing, try removing the housing on the plug.Pinout doesn't really matter, does it?Datasheets attached.

author: tautech
author_rank: Super Contributor
timestamp: June 05, 2025, 01:44:47 pm
content: Quote from: pubgrub on June 05, 2025, 01:02:27 pmYou can check the pinout against those in the DIY thread I linked.QuoteIt might be as simple as connecting the Rigol LA probe upside down and routing the connections straight into the PCIe PCB edge connector minus the termination components.QuoteThere should be enough info in the DIY thread for you to cobble something together.....certainly worth a try.I had a quick hunt for the plug measurements but could only find the PCIe PCB edge connector location measurements within the plug but you might find them uploaded to Thingiverse as a 3D model that will only need tweaking to add a PCIe socket.Have fun.

author: pubgrub
author_rank: Newbie
timestamp: June 05, 2025, 01:50:29 pm
content: Quote from: KungFuJosh on June 05, 2025, 01:07:50 pmDoesn't it matter if the scopes wire the signals and GNDs differently?Signal pin could be GND and vv.

author: KungFuJosh
author_rank: Super Contributor
timestamp: June 05, 2025, 02:11:33 pm
content: Quote from: pubgrub on June 05, 2025, 01:50:29 pmOf course! But if it's just pins to wires, then you figure out which is which and connect to DUT appropriately. That's assuming there's nothing but pins to wires connected on the probe (I mean outside of the connections for D0 to D15).You should check out the DIY project stuff for the SPL2016. It will have all the info you need to figure that out. It's been a long time since I looked at it, but I don't remember anything being different from one pin to the next. That doesn't mean it isn't different though.

author: pubgrub
author_rank: Newbie
timestamp: June 05, 2025, 03:09:51 pm
content: Yes, thank you, I will definitely dig into the DIY stuff.