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.
Whats the maximum ambient temperature these cameras operate at.
It is 55 Degrees C.
Has this got a side cable exit point on the bracket?