I've got an NVR4216-16p-4ks2 which has 1 row NO1 C1
And another row has CTRL and P outputs.
In manual it says CTRL is
"Controllable 12 V power output. It is to
control the on-off alarm relay output. It
can be used to control the device alarm
output. At the same time, it can also be
used as the...