Industry News
    Home > News
  • Million high-definition monitor the entire network of passive networking technology

        Networking background needs analysis
        In recent years, the market share of network cameras with POE interface in high-speed growth, the 2008 Beijing Olympic Games and 2010 Shanghai World Expo will be held, and the gradual deepening of the construction of "Green City", the status of the IP cameras on the market will be more higher and higher. According to statistics, from 2005 to 2009, the network camera market into a geometric growth in June 2010, has increased the number of times. The IP camera is only 3% of the camcorder market, the industry estimates that network camera market share is expected to reach 50 percent by the end of 2015. If the share of network cameras increases, used the ratio of the PoE switch will also increase, China PoE market will reach 300 million yuan within three years.
        Unique representation of the PoE standard products on the security industry, network cameras, its easy installation, simple configuration, simple network structure, and good image quality, features, and gradually be recognized, hence, have the potential of high-speed development, should cause the camera industry´s attention.
        Advantage in the PoE networking applications
        1, the flexibility of PoE only need to install and support a cable, simple and space-saving, and the device can be moved;
        , Cost savings, video surveillance cameras are installed in places difficult to deploy AC power PoE eliminates the need for time-consuming expensive power supply and installation of power, saving cost and time;
        3, the supply of intelligent, DC power, data transmission, the PoE can use the Simple Network Management Protocol (SNMP) to monitor and control equipment;
        4, elimination of supply security risks, the PoE power supply terminal device only for need-powered equipment supply, only the connection need to supply the equipment, the Ethernet cable will have a voltage, thus eliminating the line leakage of risk;
        5, the centralized power supply advantages, a single UPS can provide all equipment related to power supply;
        Device compatibility advantages, users can automatically and safely on the network to mix the original equipment and PoE devices, these devices can co-exist with the existing Ethernet cable;
        7, the network device management purposes, when the remote device connected to the remote control, reconfiguration or reset;
        8, wireless LAN, PoE simplifies the RF test task, the access point can be easily moved and access.
        PoE products Technical Analysis
        PoE power supply technology
        A PoE system consists of two parts of the supply-side device PSE and Powered Device PD. PSE device for Ethernet client devices powered devices, but also the entire process of PoE Power over Ethernet managers; PD device is to accept the PSE load of the power supply, PoE system of the client device. Both PoE power supply method: midspan (Mid-Span) 4/5 7/8 line of DC transmission, using the Ethernet cable is not free lines to transmit direct current, the corresponding endpoint The PSE support PoE-enabled Ethernet switches; the end of the cross-connection (End-Span) with 1/2, 3/6 line of DC transmission, DC transmission in the line of the core used to transfer data at the same time, using its transmission to Ethernet data signals at different frequencies.
        PoE repeater technology
        PoE repeater reverse PoE technology introduced on the basis of the original PoE-enabled switch, so that the original PoE switches not only with power supply function, and having on the uplink by the power function so that PoE repeater without an external power supply can be re- transport network data, play PoE signal and then an extension of the transmission functionality. LS104P LS102P-at products associated by the electrical ports are high-power PoE, PoE electric power up to 60W, hang 4 IEEE802.3af standard PoE ports and 2 IEEE802.3at standard power port power fully meet requirements .
        PoE repeater dragged to a network is convenient cause of action consists of three parts: the center room, the relay part of the monitoring points. The center room to maintain the existing network interface devices, only additional PoE single statement appliances; drag a PoE repeater relay part of the program core equipment parts and PoE repeater, the program, the PoE power supply remote input of 100 meters, 100 meters from the PoE repeater output to PoE camera power supply; monitoring point part no external power supply, PoE HD IP camera. The program is a traditional PoE repeater applications to solve the network transmission distance is not enough, the lack of long-distance PoE switch bandwidth.
        PoE repeater with two network is convenient cause of action of three parts: the center room, the relay part of the monitoring point. The center room to maintain the existing network interface devices, only additional PoE single statement appliances; drag PoE repeater relay part of the program core equipment parts and PoE repeater, the program, the PoE power supply remote input of 100 meters, 100 meters from the PoE repeater output to two PoE camera power supply; monitoring point part no external power supply, PoE network HD camera. The program broke through the traditional PoE repeater applications, not only to solve the network transmission distance is not enough, with the lack of long-distance PoE switch bandwidth. Each application a PoE repeater will be able to save 100 meters of cable transmission medium, and further savings in the cost of the project.
        PoE repeater dragged four network is convenient cause of action of three parts: the engine room relay part of the monitoring point. The center room to maintain the existing network interface devices, only additional PoE single statement appliances; drag PoE repeater relay part of the program core equipment parts and PoE repeater, the program, the PoE power supply The remote 100 meters input, 100 meters from the PoE repeater output to four PoE camera power supply; monitoring point parts, no external power supply, the use of PoE HD IP cameras. The program broke through the traditional PoE repeater applications, not only to solve the network transmission distance is not enough, with the lack of long-distance PoE switch bandwidth. Each application a PoE repeater will be able to save 300 meters of cable transmission medium, further reducing engineering costs.

龙岗注册公司 新零售软件开发 结算系统 深圳办公家具 海运保险 工业废气处理 深圳网站设计 微型水泵厂家 硅胶管 GPG电机 大亚湾装修公司