Understanding how to generate a digital TTL

[Jgage]

Hi,

I'm new not only with labVIEW but with digital signals as well. I'm trying to generate a TTL signal (a differential TTL signal) using the digital lines on my SCB-68 Connector block. I'm trying to understand how I would go about generating the signal I desire. I've implemented an example VI "write dig chan.vi" and I generated a signal on my oscilloscope by switching the High state for one of my lines, but beyond this, I am confused.

What would be the next logical step in creating this signal? I know this very basic, but please bear with me.

[NIquist]

Post your code so we can see where you're stuck.

By "differential TTL" do you mean sending an inverse of your main signal down a separate data line?