Hello All: I am working on a big surveillance system project of designing the Internet network & IP camera system for a 6000 m2 factory. After determining the optimal angles and placement for 110 IP cameras (bullet & dome), I faced the tough question of designing the supporting infrastructure, and want to look for expert's insights. Here are the issues:
1. Should I share the internet network (a gigabit internet backbone and various branched wireless routers/switches for 40 office staffs with light internet usage, mostly email) with the surveillance video network for 110 IP cameras + 4 NVR (low quality settings with approximately 2 mbps traffic)?
By my calculation, the cameras system will take 220 mbps bandwidth and leave the 780 mbps bandwidth rest for internet traffic. However, with constant data flows between IP cameras and NVR, I am worried the performance of the internet network will be significantly affected.
2. I plan to use POE for all the cameras HIKVISION DS-2CD2020F-I , with POE power inputted from Switch TP-LINK TL-SL2428P . Is it a good idea, or should I go with 12V DC for every IP camera? Again, I am worried about the stability of the system as a whole. In theory, the switch is capable of supplying up to 220 W so it should be sufficient for these 5,8 W cameras.
3. With the scale of the system and all the risks mentioned, should I go with analogue option instead for better stability?
I greatly appreciate any advice.