If the cameras were to be managed by DHCP: We can also reach the individual cameras at their IP address using a web browser such as Firefox. This rule contains the IP address, data port, and login credentials. If we know the address, we can look for it on the network and attach it to an NVR with a rule. With IP cameras we don't ever want their address to change, so we must configure a static IP address for each camera connected to the network. In most computer networks, dynamic internal IP addressing done by a DHCP server on your router will be fine, but not with a network camera system. Why not to use DHCP based IP addresses with your surveillance system This is usually remedied by removing all but one of the devices with that address, changing the addresses, then reconnecting them to the network. If two or more devices on the same network have the same address, each device with that address will turn off their NIC and stop communications on that network until the conflict is resolved. We really don't need to get into converting decimal to binary, just understand that in most scenarios the only octet that should differ from one device to another on a LAN is the fourth octet, and the values must be unique and between 1-254.įigure 1-1 Understanding IP Address Conflicts in a NetworkĮach IP address on a LAN must be unique. IPv4 addresses are comprised of four octets. Each value is separated by the dot operator and is one byte in size. IPv4 addresses are given in dot-decimal notation.
These ports are used to connect the NVR how the unit is reached over the network Understanding the Scope of IPv4 Dot-Decimal Notation NVR 10/100/1000 Up/Downlink Port - Max data transfer rate 1000Mbps, separate from PoE ports, some models have two uplink ports. NVR 10/100 PoE Port - Max data transfer rate 100Mbps, only connects cameras, powers cameras, keeps network cameras on a closed system PoE Switch 10/100/1000 Uplink Port - Max data transfer rate 1000Mbps, connects the switch to the network, used for the switches backbone Click Image to Enlarge PoE Switch 10/100 PoE Port - Max data transfer rate 100Mbps, sends power to cameras On some of our NVRs and PoE switches, there are a bunch of ports. Plugging cables into ports on a PoE network switch arbitrarily will not yield the results you were looking for unless you happened to get lucky and wire things properly. Don't cut corners on your install, make sure you run a good backbone. Needless to say, using a cable with a maximum rating of 125MB/s to carry the video to other network devices while you have 16+ cameras is not going to bode well for your transmission speeds.
CONFIGURE IP CAM 1080P
While you may have a 6 lane highway that can have six vehicles carrying a 1080p signal, the 4mp signals will take up two lanes and the 4K signals will take up 4 lanes. However, the vehicles may take up more than one lane at a time due to their size. We can compare a data packet to a vehicle, and the bandwidth of the cable to the number of lanes on the highway. Network cabling is not much different in a broad scenario.
How effective the highway is at its job depends on a ton of factors, but for this analogy, it can be broken down to the number of lanes and the number of vehicles attempting to travel in those lanes at a given time for a set distance. It is comprised of multiple lanes, allowing vehicles to travel from one location to another. While a Cat5e line might be enough for a couple 1080p cameras, using it as a backbone is not advised.Ĭonsider a highway. Cat5e supports less bandwidth than a Cat6 cable.Ĭategory 5e - 1 Gbit/s Ethernet over twisted pair at 1 Gbit/s (125 MB/s)Ĭategory 6 - 10Gbit/s Ethernet over twisted pair at 10 Gbit/s (1250 MB/s) There are different ratings for different cable types, giving different speeds. Click Image to Enlarge Network Cable, Transmission Speeds, and Throughput
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