Full D1 or 720 x 4 Cams across Wireless Bridge or Hard Wire?

[raptor-cctv.co.uk 0]

We're contemplating linking our customers NVR to his router (conveniently located by his HD tv for HDMI input), setting up a wireless bridge with a range extender (we have found a really good, value for money one), to link to a wireless 8 channel (4 channel POE) in their loft, allowing us to hardwire the four cams (with POE power) from that switch. Where we are a little green , is that we are unsure if that the (wireless) connection could cope with (at least) a D1 setting across the four cams. We can vary the frame rate/resoultion accordingly (we intend to experiment) but would greatly welcome anyone who can offer any information/advice/data transfer calculators (eg. Mbps Vs 4 x IP cam resolution) relating to this particular setup. The NVR has a 1.3MP/720/D1/CIF setting for each camera (1.3MP cams) and of course a frame rate setting. This type of setup allows for minimal cabling (especially in a residential environment), so we are eager to explore the possibilities of it. Any information regarding this would be warmly welcomed.

[Soundy 1]

If it's a solid connection with good throughput, ideally 802.11n, you should be okay. If all you have is a G connection, 720p might be troublesome. Having the PoE switch near the cameras and then uplinking to the rest of the network on a single cable is good design, but hardwiring that uplink *if at all possible* is always preferable to wireless.

[bike_rider 0]

You might also consider Ethernet over Power (aka Powerline). I run a 720p camera and a 2MP camera at 15 fps each (H264) through a powerline connection. The connection says it is 99Mbps up and 156 Mbps down.