Help to design PoE solution

[SiMo73 0]

Hi

 

I am looking for help to build an IP surveillance system. Due to distance, I am obliged to use PoE technology. I need to install:

 

• Level-0 => 7 Cameras

• Level-1 => 14 Cameras

 

Can you please advise how to build such architecture using PoE Switchs (Iwas Thinking about HP) and NVRs/Cams (was thinking about Hickvison).

 

I have few questions also:

 

Q1/ Is it possible to connect IP Cameras to switch and connect the switch to NVR ?

Q2/ May be I can simply install 2 PoE Switchs (8 PoE for level0 and 24 PoE for Level1) and one NVR ? Can I use a 4 channels NVR or I must use 32 channels NVR ?

Q3/ What is best using a 32 channels NVR or 2 x 16 channels NVR ?

Thanks for your advises.