Understanding a A6B2-CWZ3E Rotary Ecoder

I have this encoder.
https://www.robotshop.com/media/files/pdf/datasheet-com-11102.pdf
I think this is the same thing.

Maybe I'm dense but as much as I researched this I still don't get how to determine what resolution I'll be getting. I'll be using 5V but I would like to know exactly how to figure out the resolution no matter what voltage I use. Maybe it doesn't matter.

It has 5V-12V
10/20/30/40/50/60/100/200/300/360/400/500/600
1,000
1,200/1,500/1,800/2,000

If someone could help it would be appreciated.

Nevermind...I was being dense. Those were the different models of the A6B2-CWZ3E the one i have is 1024. Amazing I didn't get that until now :slight_smile: