Planet FSD-803PE [6/24] Features

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.

Power over Ethernet Technology

The Switch also supports IEEE802.3af in-line power technology. Power over Ethernet

Technology is using the un-used UTP wire to transmit the power over the Cat-5 UTP to

the remote end-node.

Follow the IEEE802.3/802.3u Ethernet standard, 100Base-TX and 10Base-T will only use

2-pair of the UTP cable for data transmission and receiving (refer to Appendix B for more).

And Power over Ethernet, however, will used the un-used 2-pair of UTP Cat. 5 cable for

power transmission. The power transmission either can be a direct current without any

detection/ protection or can also deploy the new standard IEEE802.3af.

Two devices required in this technology, injector and splitter. The injector combine the

Ethernet signal and 48VDC currents through UTP cable to the remote end. And splitter

split out the two things to the device, DC power to turn on the device and others for data

sending / receiving. IEEE802.3af uses the protection circuit to detect the support features

of remote end-node in a very short time. If the remote-end reply the injector with 802.3af

supported signal, the injector will then provide the DC current over the wire to power on

the Switch. Otherwise, the Switch will never be turned on.

Features

• The Switch were designed for easy installation and high Performance in an

environment where traffic on the network and the number of user increase

continuously.

• The Switch with their small, compact size was specifically designed for small to

middle workgroups. The Switch can be installed where space is limited; more-

over, it provides immediate access to a rapidly growing network through a wide

range of user-reliable functions.

• The Switch is ideal for deployment with multiple high-speed servers for shared

bandwidth 10Mbps or 100Mbps workgroups. With the highest bandwidth

200Mbps (100Mbps full-duplex mode), any port can provide workstations with

a congestion-free data pipe for simultaneous access to the server.

• The Switch is expandable by cascading two or more switches together. As all

ports support 200Mbps, the Switch can be cascaded from any port and to any

number of switches.

• The Switch is a perfect choice for site planning to upgrade to Fast Ethernet in

the Ethernet workgroups can connect to the Switch now, and change adapters

and hubs anytime later without needing to change the Switch or reconfigure

the network.

• The Switch support IEEE802.3af, which can easily install the Switch in any

10-000039-000.indd 2004/8/27, �� 05:374