SCXI 1302 signal bleed through form other channels

[OKors]

I have an SCXI-1000 Chassis, 1346 backplane adapter, 1302 terminal block and feedthrough panel.

I'm accessing the first 8 AI channels on the DAQ card via the feedthrough panel and terminal block.

Using BNC cables, I'm passing voltage outputs from various test controllers and scaling them in Signal Express.

Problem I'm having is, if I plug in more than one controller's voltage signals into the 1302, the signals tend to bleed over onto the other channels.

Here's and example. Controller 1 is running a sinewave and I'm monitoring the load and stroke signal on channels 1 and 2. Controller 2 is running a load profile ramp function lets say 0-1000lbs @ 50lbs/sec ramp rate on channel 3. If I record the signal from channel 3 it ends up looking like a ramp (as it should) but with a sinwave over top; because for some reason the other 2 channels are bleeding through.

[Jason_D]

OKors,

First, you should only get 7 chanels (1-7) as per this KnowledgeBase article, as channel 0 is used to multiplex the other modules in the SCXI chassis.

Also here is our best documents on fixing ghosting.

Let me know if you have tried these and if anything helps!