AirLive PoE-FSH2442 User’s Manual
3
were characterized by higher latencies. Routers have also been used to segment local area networks, but
the cost of a router, the setup and maintenance required make routers relatively impractical. Today
switches are an ideal solution to most kinds of local area network congestion problems.
2.4
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.
2.5
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.
2.6 Features
24 x 100BASE-TX Auto-negotiation Fast Ethernet PoE ports
4 x 1000BASE-T Auto-negotiation Gigabit Ethernet ports
2 x 1000BASE-T Combo mini-GBIC (Auto-Sense) Gigabit Ethernet for optional mini-GBIC transceiver
to extend distance, share with 2 1000BASE-T ports
All ports support auto MDI/MDIX, so there is no need to use cross-over cables or an up-link port
Supports PoE power up to 15.4W for each PoE port
Supports PoE power maximum 170W for the device
Supports PoE Powered Device (PD) classification identify
Half duplex transfer mode for connection speed 10Mbps and 100Mbps
Full duplex transfer mode for connection speed of 10Mbps, 100Mbps and 1000Mbps
Store-and-Forward switching scheme capability to support rate adaptation and ensure data integrity
Up to 8K unicast addresses entities per device, self-learning, and table aging
128 KBytes packet buffer
Supports IEEE 802.1Q VLAN
Supports IEEE 802.1p Priority Queues
Supports Static Port Trunk
Supports Broadcast Storm Control
Supports Port Mirroring
Supports Port Setting for Speed
Easy configuration via WEB Browser
Easy setting via Web Management Utility
Standard 19” Rack-mount size
