I have the W1 jumper on the USB-1608GX-2AO DAQ configured for pull-down (see relevant page from data sheet attached). However, when looking at the unconnected input channels, the values are all floating (usually oscillating around -6.3V, but sometimes this value changes). I see similar behavior when I move the jumper to the pull-up position. Has anyone else seen this behavior, or have an understanding as to why this happens? Thanks!
USB-1608GX-W1_jumper.pdf