1
Introduction
Power-over-Ethernet (PoE)
eliminates the need to run VAC power to other devices on
a wired LAN. Using Power-over-Ethernet system installers needs to run only a single
Category 5 Ethernet cable that carries both power and data to each device. This allows
greater flexibility in the locating of network devices and significantly decreasing
installation costs in many cases.
There are two system components in PoE
—the Power Sourcing Equipment (PSE)
initiates the connection to the second component, and the Powered Device (PD). The
current is transmitted over two of the four twisted pairs of wires in a Category-5 cable.
Power over Ethernet follows the IEEE 802.3af and is completely compatible with existing
Ethernet switches and networked devices. Because the Power Sourcing Equipment
(PSE) tests whether a networked device is PoE-capable, power is never transmitted
unless a Powered Device is at other end of the cable. It also continues to monitor the
channel. If the Powered Device does not draw a minimum current, because it has been
unplugged or physically turned off, the PSE shuts down the power to that port. Optionally,
the standard permits Powered Devices to signal to the PSEs exactly how much power
they need.
The 8 10/100TX + 2 10/100/1000T / 100/1000Mini-GBIC Combo with 8 PoE Managed
Switch is the multi-port switches that can be used to build high-performance switched
workgroup networks. Any one of the switch is a store-and-forward device that offers low
latency for high-speed networking. It also
features a ―store-and-forward ―switching
scheme. This allows the switch to auto-learn and store source address in an 8K-entry
MAC address table. The switch is targeted at workgroup, department or backbone
computing environment.
Summary of Contents for LPES-2208CA
Page 2: ...Revision History Document Release Date Revision Initials 1 00 Aug 28 2009 New Edit Vincent ...
Page 57: ...50 IP Configuration interface ...
Page 66: ...59 Syslog Configuration interface ...
Page 68: ...61 SMTP Configuration interface ...
Page 70: ...63 Event Configuration interface ...
Page 74: ...67 Click Apply to have the configuration take effect SNTP Configuration interface ...
Page 76: ...69 IP Security interface ...
Page 79: ...72 Port Statistics interface ...
Page 81: ...74 Port Control interface ...
Page 91: ...84 State Activity of Switch 2 ...
Page 105: ...98 RSTP System Configuration interface ...
Page 107: ...100 RSTP Port Configuration interface ...
Page 109: ...102 SNMP System Configuration interface ...
Page 112: ...105 SNMP v3 configuration interface ...
Page 115: ...108 QoS Configuration interface Port Based Priority Configure per port priority level ...
Page 118: ...111 IGMP Configuration interface ...