Suitable Digital I/O PCIe card

I am looking for a PCIe card that can receive Digital Input signal and send Digital Output signal to another device. The logic high is preferably 5V and logic low is preferably 0V.

I have looked through the list and identified PCIe-6509. Can anyone advise on whether this model will work for me?

I have looked at the user guide and specifications and it seems like PCIe-6509 and PCI-6509 have different logic high and logic low.

I cannot understand the logic high and low for PCIe-6509.

Does this mean that the voltage is the same for both logic high and low, but only the current direction is different?