Is this camera fixed-lens or varifocal? The web page describes it as "3.6mm Fixed Lens", but in the description tab I read "Lens: 2.8-12mm Varifocal".
This is a varifocal camera.
How do you connect an IP camera to this DVR?
Firstly you will need to login to the unit , go to System -> Digital -> Channel type, then select the configuaration that supporst IP. An IP camera is then connected to this unit via it's RJ45 (lan port) using a network switch or POE switch.
Is this plug and play on a I -Apollo NVR
This will require configuration before connecting to an I-Range NVR.
How many IP cameras can be configured onto this unit and does it provide POE?
This can do up to 16 IP cameras depending on the configuration and does not provide POE