BNC-2090A as inline breakout

[jkonkle]

Hi,

We currently have a connection between a PXIe DAQ to a custom PCB as follows:

PXIe-6363 <--> SHC68-68-EPM cable <--> Custom PCB connection

We are interested in prototyping with a connection like this:

PXIe-6363 <--> SHC68-68-EPM cable <--> 2090A <--> interconnects <--> 2090A (backwards) <--> cable <-->Custom PCB connection

Where the "interconnects" would include BNC analog/digital connections and individual wires for digital connections to a breadboard (as well as other connections).

My main question is whether there is any active circuitry in the 2090A that would cause a "backwards" connection to the custom PCB to fail? If all the signals on the 2090A are passive pass-through connections, it seems like such a connection would work. There is an LED that is powered by the 5V output of the DAQ, but are there any other issues to watch out for? Would another terminal block work better?

[santo_13]

Please refer to the BNC-2090A user manual for the circuitry present on the breakout accessory - https://www.ni.com/docs/en-US/bundle/bnc-2090a-feature/resource/372101a.pdf

AFAIK, there are no active components on BNC-2090A but there are few filter networks.