When junction temperature (Tj) of the chips goes up every 10 ℃, the service life of the device would be reduced by half, and the failure rate would be increased by twice. Therefore, with these problems existed, the designers need to work out a solution to solve the thermal failure, and developers also have to figure out a solution to improve the cooling system.
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Due to the maximum transmission distance of the network cable is 100 meters, it is necessary to use media converters or Ethernet repeaters for the long-distance transmission. The media converters are commonly used in network environments where Ethernet cables cannot be covered or the optical fiber must be used to extend the transmission distance.
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UTEPO’s Holiday Arrangement for Chinese Lunar Near Year 2019
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Power over Ethernet or PoE describes any of several standard or ad-hoc systems which pass electric power along with data on twisted pair Ethernet cabling. This allows a single cable to provide both data connection and electric power to devices such as wireless access points, IP cameras, and VoIP phones.
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The unmanaged Ethernet switch provides 8*10/100Base-T RJ45 PoE ports (IEEE802.af/at) + 1*10/100/1000Base-T RJ45 + 1*1000Base-X SFP port. It supports one key CCTV mode: 1-8 downlink PoE ports can only communicate with uplink ports. The furthest transmission distance could reach 250m. PoE watchdog (detecting if the PoE device doesn't work, retart them). The product could be used in network security video surveillance, network project etc.
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