IP视频影像监控最佳伙伴.ppt

* Transmitting more than 15.4W of power per port poses some significant challenges. One such challenge lies in the physical characteristics of copper cabling, which can overheat or get damaged when transmitting power above certain thresholds. The IEEE is exploring different means of transmitting higher levels of power subject to these limitations. The Benefits of Power over Ethernet ? Use existing cabling—only one set of wires to bring to your device simplifies installation and saves space. ? Lower Installation Costs—no need to pay for an expensive electrician to install additional power outlets, or delay your installation to meet the electrician’s schedule, which saves time and money. ? Flexibility—PoE network devices can be easily relocated to wherever you can lay a LAN cable with minimal disruption to the workplace. ? Uninterrupted Power—a Universal Power Supply (UPS) can guarantee power to the device even during a mains power failure. ? Easy Management—you can use SNMP network management infrastructure to monitor and control PoE devices, and PoE devices can be shut down or reset remotely; theres no need for a reset button or power switch. ? Wireless Options—in wireless LAN systems, PoE simplifies the RF survey task, as the AP can easily be moved and wired in. It can be placed in an optimal position, such as on a ceiling or wall even if there is no electrical outlet or extension cord nearby. ? Scalability—adding more devices, such as cameras, VoIP phones, and wireless APs is as easy as adding switches and plugging in the RJ-45 connector. PoE helps you grow quickly, and with less cost, than other solutions. * * * 專利24V車用PoE交換機 JetNet 3705-24V Korenix 专利 24V PoE Booster 24V Power Input 48V PoE * IP67防水防塵PoE交換機 JetNet 3706-RJ Waterproof Test Rugged RJ45 Anti-vibration and shock Waterproof, dust-tight Simple installation Best fit for moving vehicles IP67 Rugged Enclosure Waterproof, dust-tight corrosion-resistant Best fit for extreme environment Dust-tight Test IEC 6