800PoE Managed Power Over Ethernet Switch User Guide
2
how to install it on the desktop or shelf. Basic knowledge of networking is assumed.
Read this chapter completely before continuing.
2.1 8-ports 100BaseTX + 2-ports1000BaseT / Mini GBIC PoE PSE
Product Description Overview
800PoE is the PoE PSE model to offer 100W power buget for whole with built-in power
management function, these PoE L2 management switch can adjust the supplied power
dynamically to save the power for wide application range.
Power over Ethernet (PoE) is the IEEE standard (802.3af) to transmit data and power
over the Ethernet CAT5 cable. PoE defines a way to build Ethernet power-souring
equipment and powered terminals. The specification involves delivering 48 volts of DC
power over unshielded twisted-pair wiring .It works with existing cable plant ,including
Category5,5e or 6;horizontal and patch -panels; outlets ;and connecting hardware,
without modification. Power over Ethernet eliminates the need to run 110/220V AC
power to wireless network, IP telephony or other powered devices on a wired LAN. Use
of a power over Ethernet system eliminates the need to deploy double cabling systems
in an enterprise, thus allowing greater flexibility in locations of network devices, and
significantly decreasing installation costs.
2.2 8-ports 100BaseTx + 2- Ports 1000BaseT / MiniGBIC PoE PSE
Layer 2 management Switch Features
Power Management:
In a power over Ethernet system, operating power is applied from a power source
(PSU-power supply unit) over the LAN infrastructure to powered devices (PDs), which
are connected to ports. Under some conditions, the total output power required by PDs
can exceed the maximum available power provided by the PSU .The system may a priori
be planed with a PSU capable of supplying less power than the total potential power
consumption of all the PoE ports in the system. In order to maintain the majority of ports
active, power management is implemented.
The PSU input power consumption is monitored by measuring voltage and current .The
input power consumption is equal to the system’s aggregated power consumption .The
power management concept allows all ports to be active and activates additional ports,
as long as the aggregated power of the system is lower than the power level at which