TAILIEUCHUNG - Application Overview Power-over-Ethernet

Final approval of the Power-over-Ethernet (PoE) standard in June 2003, removed a significant barrier to widespread adoption of IP telephony. The standard (IEEE ) specifies how to supply power to compliant devices over Ethernet LAN cabling. Armed with uninterruptible power supplies (UPS), IT staff can now deploy Voice over IP (VoIP) telephones without worrying about them not functioning during a power outage. The benefits of this enabling technology extend beyond IP telephony. Many applications that deploy equipment with low power requirements in areas that aren't already wired for power will benefit from reduced cabling costs. A single standard Ethernet cable will now be able to provide both power. | Application Overview Power-over-Ethernet Introduction Final approval of the Power-over-Ethernet PoE standard in June 2003 removed a significant barrier to widespread adoption of IP telephony. The standard IEEE specifies how to supply power to compliant devices over Ethernet LAN cabling. Armed with uninterruptible power supplies UPS IT staff can now deploy Voice over IP VoIP telephones without worrying about them not functioning during a power outage. The benefits of this enabling technology extend beyond IP telephony. Many applications that deploy equipment with low power requirements in areas that aren t already wired for power will benefit from reduced cabling costs. A single standard Ethernet cable will now be able to provide both power and communication services to wireless network access points IP cameras security badge readers and many other devices. Advantages of PoE include Reduced cabling costs One cable provides both power and data. Reliability A UPS at the power distribution source can guarantee power to all connected devices. The first worldwide power standard This means that PoE devices will plug in anywhere. SNMP network management This system can be used to monitor and control connected devices. Simplification of wireless LAN installation Access points can be moved and wired in easily. Application Overview Power-over-Ethernet ADC Midspan Controller The ADC midspan controller is a rack-mounted fully compliant midspan PSE that can power between one and 24 PoE devices. It offers the flexibility of universal input power 1 15 230VAC 50 60Hz and multiple configurations. The midspan controller panel s powerful management features include Full compliance to the IEEE standard with capability to provide Watts of power on every port simultaneously Redundant power capability on all designs Modular SNMP and Power Supply chasis design allowing in-service field upgrades to redundant power and or SNMP capability SNMP Stacking allowing up

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