nancyh1980 0 Posted July 28, 2010 With analog cameras, quite simply power the cameras with fused power supply. Run the 4-channel DVR. To view, static IP or DDNS. With Decentralized IP, don't laugh with rudimentary questions: Getting the answers will make me feel smarter. How to get power to (2) decentralized cameras How to hook up (2 decentralized) to NAS How to View.... I have a rought idea: poe switch, NAS.... But don't know the actual of how-to-do. Thanks guys. Share this post Link to post Share on other sites
buellwinkle 0 Posted July 28, 2010 I'm assuming you mean PoE cameras. These are powered by a PoE switch or seperate injectors, but you'll need a switch anyhow, so just get a PoE switch. I'll use Mobotix as an example, since they are the type of brand that specializes in a decentralized approach. So say you have four Mobotix cameras, at two locations, so 2 and 2. You would need to get a PoE switch for each location and one NAS per location. You setup the cameras and NAS with fixed IP addresses and attach them all to the PoE switch. Each location is self contained, it records straight from the camera to the NAS. Then you create user accounts on the NAS for the cameras to write to and setup the cameras to write events to the NAS. Then if you want to manage and view the cameras from a central location or the internet, you run ethernet cables or a bridge between the switches and your main router. You can then setup their free MX Control Center software to view a group of cameras. The software does not record anything, it just provides a cleaner way to view & manage the 4 cameras. Share this post Link to post Share on other sites
Soundy 1 Posted July 28, 2010 Actually, it's not all that complicated. Start with the basics: recording IP cameras doesn't NECESSARILY work any differently than with analog cameras. Analog DVR: you connect power and signal lines to each camera, then connect the signal lines to the DVR's capture card. Hybrid/NVR: you connect power and network lines to each camera, then connect the network lines and the DVR to a network switch. In this case, you can imagine the switch as taking the place of the capture card (or imagine it's a USB capture device, to make the picture a little clearer). Almost all IP cameras can be powered from standard 12VDC/24VAC power supplies, just like analog cameras (there are some odd exceptions, like some IQEye models that accept 12-24VDC but not AC, and several other brands that are 12VDC only). Starting from there, it should be easy; all IP does it give you more options for how to do things. In the case buellwinkle describes, some cameras can write directly to a network storage device, foregoing the need for a typical "DVR/NVR" type machine... however, the topology is the same; you're just replacing the DVR/NVR in the map, with a NAS device. With PoE (Power over Ethernet), again, everything is laid out the same, you just have an additional option for powering the cameras: the switch provides the power over the ethernet cable, eliminating the need to run a separate power wire to the camera. Now you can start getting into the "decentralized" idea: you can have cameras on different sites, the NAS on one or more sites, and all you're doing is routing the cameras' data to the NAS (or DVR/NVR, as the situation demands) via LAN, WAN, VLAN, internet, etc. Still the same basic topology, you're just inserting some additional transport methods. To use the analog model, imagine you disconnected the cameras from the DVR, plugged them into a box that sent the video over the phone line, then at a remote location, plugged the DVR into another box that extracted that video for recording. Share this post Link to post Share on other sites
nancyh1980 0 Posted July 28, 2010 I feel less stupid, even before having coffee! You guys are professors. Share this post Link to post Share on other sites
Simon Hall 0 Posted April 15, 2014 With analog cameras, quite simply power the cameras with fused power supply. Run the 4-channel DVR. To view, static IP or DDNS.With Decentralized IP... How to get power to (2) decentralized cameras How to hook up (2 decentralized) to NAS How to View.... I have a rought idea: poe switch, NAS.... But don't know the actual of how-to-do. Thanks guys. Here are three tutorials showing how to set up a decentralized IP camera for NAS recording: Record to a QNAP NAS Record to a Netgear NAS Record to a Synology NAS Share this post Link to post Share on other sites
