Poe switches to buy Raiders
Poe switch is what Poe switches to buy RaidersWhat is the POE switch
Switch port support output power up to 15.4W, in line with the IEEE802.3af standard, by way of power supply to the standard POE terminal equipment power supply, eliminating the additional power wiring. After investigation, the POE switch developed and launched to meet IEEE802.3aT and IEEE802.3af standard, the port output power can reach 25-30W. Generally, POE switch power supply is to support network switches, which not only can realize the function of data transmission can also supply power to the ordinary switch network terminal.
POE (Power Over Ethernet) refers to the existing Cat.5 Ethernet cabling infrastructure does not make any changes in the situation, for some IP based terminal (such as IP telephone, wireless LAN access point AP network camera, etc.) for the transmission of data signals at the same time, can also provide DC power supply technology for this kind of equipment. POE technology can ensure the existing structured cabling security while ensuring the normal operation of the existing network, to minimize costs.
Two, POE switch international standards
POE is also known as the power supply system based on LAN (POL, Power over LAN (Active Ethernet) or active Ethernet), is sometimes referred to as Ethernet, this is the use of existing standard Ethernet transmission cable and the new standard of data transmission and electric power standard, and keep up with existing Ethernet systems and users compatibility. IEEE 802.3af standard is a new standard Ethernet power supply system based on POE, which based on the IEEE 802.3 increased by standard direct power line, is to extend the existing Ethernet standard, is the first international standard on power distribution.
IEEE began to develop the standard in 1999, the first participating vendors have 3Com, Intel, PowerDsine, Nortel, Mitel and National Semiconductor. However, the shortcomings of the standard has been restricting the expansion of the market. Until June 2003, IEEE approved 802 3af standard, it makes clear the power detection and control system in remote matters, and the power supply routers, switches and hubs, call to the IP through the Ethernet cable safety system and wireless LAN access point device in the regulations. The development of IEEE 802.3af includes the efforts of many company experts, which makes it possible to be tested in all aspects.
IEEE802.3 AF and IEEE802.3at (PoE+) in 2012, the country launched the POH-POWER OVER HDBASET. community
The use of the existing 4-Pair four pairs of line technology, bilateral power supply to achieve 60-100W power, the use of 5 or 6 lines can be achieved. Application of HD video push power to 42 LED TV to the United States in 2010, the new provisions of the 42 LED TV power consumption needs to be less than 70W.
In the domestic production of 4-Pair four line power supply is currently very few, so there should be a vision of the industry as soon as possible to upgrade to POH POE+ technology!
Three, POE switch system
A typical Ethernet power supply system. Keep the Ethernet switch equipment in the distribution cabinet and supply power to the LAN twisted pair with a HUB (Midspan). At the end of the twisted pair, the power supply is used to drive the telephone, wireless access points, cameras, and other devices. In order to avoid power failure, you can use a UPS.
Poe switch with fast and Gigabit switch, which TG-NET P3000 series full Gigabit POE switches, P1000 series of fast POE switches, P2000 series Gigabit and fast POE switches, P3000 series Gigabit POE switches, providing 8 adaptive 10/100/1000M port, P3000 series of two models, provide 4/8 support for the IEEE802.3af/at standard POE port respectively, the maximum output power of each port 30W. P2000 series Gigabit POE switch, support full port full load IEEE802.3af power supply, and support high-power 802.3at/30W power supply. P1000 series POE switch 5-8 provides a fast, adaptive 10/100M port, the P1000 series includes 4 models, which provide 2/4/8 ports support IEEE802.3af/at standard POE ports, each port of the maximum output power of 30W. Through the cable for wireless AP, network camera, network phone, handheld computers and other POE terminal equipment power supply, transmission distance up to 100m, simple installation, plug and play. Very suitable for wireless city, security monitoring and other industries.
Four, POE switches to buy Raiders
1 determine the scope of the camera by means of transmission is divided into analog and digital signals of two, if your camera is analog signal system don‘t need to use this switch, but if the network camera (IP camera) you can use this device.
2 determine your camera‘s target. Generally speaking, the camera is mainly two indicators: first, the voltage is generally 12V, two, power is generally 12-15W. The camera is divided into two categories: BNC interface and RJ45 interface. If your camera is to determine whether the network camera with POE module by electrical function interface, if not, you need to buy a square separator using POE equipment. (Note: the separator is the role of the power POE switch line and data line separated exports is separated into two kinds of power and data) when using the separator connector to the camera, the data line into RJ45 interface.
3 determine the routing cost. The end of the electricity, the cost of wiring and the cost of using POE switches for accounting, the current POE switch power supply distance of less than 100. No layout restrictions, is to save a lot of cost.
4 to determine the number of interfaces, the number of optical fiber mouth, network management, rate (10/100/1000M) and other issues. Currently on the market interface is mainly 8, 12, 16, 24. Fiber mouth is generally one to two mouth. Speed 1000M is the fastest. So the light must note