Vlan (Virtual Local Area Network); Power Over Ethernet (Poe) - TRENDnet TPE-224WS User Manual

VLAN (Virtual Local Area Network)

A VLAN is a group of end-stations that are not constrained by their
physical location and can communicate as if a common broadcast
domain, a LAN. The primary utility of using VLAN is to reduce
latency and need for routers, using faster switching instead. Other
VLAN utility includes:
Security, Security is increased with the reduction of opportunity in
eavesdropping on a broadcast network because data will be switched
to only those confidential users within the VLAN.
Cost Reduction, VLANs can be used to create multiple broadcast
domains, thus eliminating the need of expensive routers.

Power over Ethernet (PoE)

Power over Ethernet (PoE) integrates power and data onto one single
cabling infrastructure, eliminating the need to have AC power
available at all locations.
Power and Data are integrated onto the same cable. Supporting
category 5/5e up to 100 Meters, PoE will provide power to PoE
compatible device, such as IP telephones, wireless LAN access points,
and IP security cameras.
PoE is already widely adopted in the market, saving up to 50% of
overall installation costs by eliminating the need to install separate
electrical wiring and power outlets.
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