[JAWSLite] braille display

I recently bought a used Pac Mate. I have gotten the braille display working 
with jaws on my PC. But I have 2 questions:

1. Can I turn off the cursor? It displays the cursor location and the dots 
go up and down once a second or so. It's a bit annoying and I'd like to turn 
it off.

2. Am I going to wear it out? Should I disconnect it when I'm not using it?

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