cigar7

Be sure to calculate the total incoming bandwidth of all of the cams at your desired max. FPS and max. resolution and ensure the selected NVR has adequate incoming bandwidth. I recommend that that you get an NVR with more than 16 channels if you want to run 16 4mp cams at max. FPS and at max. resolution.

I bought many from aliexpress. Make sure the firmware is upgradeable and in English, and brand new.

Sometimes the owner is absent/out of the country for 10 days - 2 weeks. There is onboard cam storage however the cams are powered by POE from the NVRs. Also, sometimes the cams have also been removed. The cable cuts can occur on the outside and on the inside of the premises. Would need to put in steel conduit to protect the cable, but that could be cut too, in 3 seconds, with one cut from a big bolt cutter.

Thanks for the advise How did you harden the NVR/DVR? Do you you use a NAS, NVR DVR? What model?

There has been significant effort put in a good first line of defense already.

Cloud storage doesn't work in this situation because the telephone, TV cable are usually cut, so nothing can be transferred to the cloud. I guess video could be transferred to the cloud by 3g/4g but will be extremely expensive

Many times, when thieves break-in, they also steal the NVR and NAS, cut telephone and TV cable lines. What's an appropriate CCTV system design to prevent the theft? Should the cams record onto a NAS stored in a vault? Someone suggested (hikvision) POE cams connected to a POE switch which connects to a router which also connects to QNAP NAS TS-253 pro, which is inside a vault, bolted to a concrete floor. Then use QNAP's Turbo NAS Surveillance Station software for live viewing and playback. Comments?

Did you ever resolve the error 152? How is the TS-253 pro working for you?

I had a similar problem with hikvision. Try this: 1. Connect the cameras to the NVR, non LAN ports, 2. Connect NVR LAN port to your router, non-LAN port, 3. Turn on Upnp on the NVR, reboot NVR, 4. Turn on Upnp in your router, 5. Use your web browser and go to the IP of the NVR 6. Modify the NVR ip by adding :81, so the address looks something like 192.168.1.170:81 7. You should get the login screen from the NVR Did it work?

If you want to run 4 or more 3mp cameras at max. resolution and max. FPS at the max. recommended variable bit rate for both main and sub-streams, the 40MB input bandwidth on the 7608 is insufficient.