"Continuous ground" or "Isolated from ground"

[matthew798]

Simple question,

Can someone explain what those mean? I've searched around and can't seem to find any electrical answers.

I am looking at this diode from DTR in particular: Diode

Thanks!

 

[Kookapeli]

Basically the can of the diode is case negative so the battery negative goes through the host, through the heatsink etc to the diode.

You just need to run a wire from the diode to the driver but must be continous negative

If the diode was case positive it would just short on the driver and wouldn't work

his might explain it better

http://hacylon.case.edu/ebay/laser_diode/Groove2 manual.pdf