Can you mount junction boxes with cable going up instead of down?

[Sonic007]

So I’ve got my junction boxes to mount my bullet cameras.
The wires come down from the roof so can I have the wire entry at the top facing up?
On the box itself it says up is the other way with cables going downwards?

Would having the entry hole of the junction box upwards be a problem or does the wire have to go in from below?
I’d just turn it upside down? Or is it to do with water getting in?

Thanks.

 

[Phil]

It's best practice to enter from below, and to include a drip loop in your cable.
Yes, this is to minimise the chances of water running down the cable into the junction box.
Search the web for images of "drip loop" to see examples.

 

[Sonic007]

Thankyou for confirming this. Much appreciated.
I can now get on with putting everything up tomorrow.