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.
Has this got a side cable exit point on the bracket?
No it does not have this feature.
What is the warranty period on these cameras?
These cameras would come with a 12 year warranty.
Whats the operating temperature of the cameras?
-20°C~+55°C is the recommended operating temperature
Can this be connected to an analogue only DVR?
This is a TVI only camera so will only work on a TVI system.