I/O Connector Cabling? Standard?

I managed to jam a cable in the "I/O" connector on an Axis P3364. Try looking that up on Google. Are these "standard" connectors, and what do you call them? And how do you release a conductor if it's the type of terminal block with a plastic tab in the middle that appears to be meant to release the metal jaws inside that really do hold onto a wire quite well... Are they all the same? Which...

*.*** ******** ****** * **** ******* *** ** ***** *** to ****** */* ****** ** * ******?
Login to read this IPVM discussion.
Why do I need to log in?
IPVM conducts unique testing and research funded by member's payments enabling us to offer the most independent, accurate and in-depth information.

** **** **** **** ****? *'** ****** ***** **** ****** "Green *********** ******"

*** **** *'* **** ** ******* ********* ******** ***** **** ****** *** ******** ** *** *********. Left*****, ****** ******.

** *** **** ******* ****?