radiohead319

I'm new to this CCTV stuff but have some IP experience. I have three questions - see below. Background I plan to buy a standalone NVR - probably the Hikvision DS-7608NI and 7 or 8 cameras. I'll have 3 IP cameras that are remote from the house - so I plan to connect those to a 4/5 port POE switch and then backhaul them back using a couple of 5GHz WiFi AP's (Ubiquiti or Trendnet) to the NVR in the house. My questions 1. Would that NVR (and equivalent units) allow me to connect the combined 3 cameras into one port of the NVR? ie: I'm asking does the NVR act like a normal layer 3 switch and would the NVR software allow me to search for the cameras (presumably by static IP address) and connect to them? Sorry if this is a stoopid question! 2. Is it possible to turn-off the POE on the NVR? The 5GHz WiFi units have their own proprietary POE, so I don't want to blow them up! 3. Finally a more generic IP networking query. I'm presuming IP cameras (I'll have 7 or generate a reasonable amount of traffic that I might not want on the rest of the home LAN. Thus I'm presuming I'll set all the CCTV stuff to a different subnet. ie: say 192.168.1.xxx for domestic network and 192.168.2.xxx for CCTV. Next I'm guessing that means I would not be able to interrogate the NVR (on network 2) from a PC on the home network (network 1). Anyone got any bright ideas how to solve that - or is it just a matter of using p2p software as if I was accessing remotely? Thanks for any help

The link seems to be broken, so I can't see the architecture you are aiming at. I disagree with numb-nuts - but I guess from his side of the fence (as an installer) he has a point! If you are reasonably technical and methodical then it should be possible - depending what you are aiming at. The Ubiquiti links similar links are excellent when used correctly. I have used them for broadcast radio studio-transmitter links where 24x7x365 operation without any glitches whatsoever is important. But in my experience to give reliable connection they need PERFECT line of sight - no bushes or even twigs in the way - you must be able to physically see the unit you are aiming at plus a bit more (Google "Fresnel zone"). Cyanide makes a good point - think about the data rate each camera will generate and perhaps statistically how often that will be simultaneous. Also remember that quoted throughputs of WiFi kits are the maximum possible with units very close, and typically total of both directions. S0 300Mbps link would be 150 each way absolutely max, and over a longer distance will gradually fall. They claim up to 30km for a link but that's probably marketing hype. I know people who have used them at around 10km with no problems, and my experience was at 2km also with no problems. If you are UK based then buy equipment that can operate in the licenced Band C at 5.8GHz. The licence from Ofcom only costs £50 per year. That gives you more power (up to 4w ERP) and I'd hope it will have less traffic in that spectrum than Bands A and B. 2.4GHz would be untenable in most places except really remote areas. Also if wiring will be exposed use exterior UV rated cable and self amalgamating tape covered by insulation tape. Another tip - get the entire set-up working on a bench - that way if it does not work when installed you know it's something physical wrong, not the parameterisation. Build the network one stage at a time checking as you go.

We had a burglary last week, so I'm on a steep learning curve. Started looking at cheap kits, and now I think I've talked myself up to a "budget" 3MP IP system from Hikvision - but I have some questions before I "splash the cash"....