Lobos Tech LB-FEA800M - Manual (Page 6)

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Rubber Feet RS-232 cable User Guide
Figure 1-2. Package Contents
Compare the contents of your LB-FEA800M package with the checklist above.
IF any item is missing or damaged, please contact your local dealer for
service.
Ethernet Switching Technology
Ethernet Switching Technology dramatically boosted the total bandwidth of a
network, eliminated congestion problems inherent with Carrier Sense multiple
access with Collision Detection (CSMA/CD) protocol, and greatly reduced
unnecessary transmissions.
This revolutionized networking. First, by allowing two-way, simultaneous
transmissions over the same port (Full-duplex), which essentially doubled the
bandwidth. Second, by reducing the collision domain to a single switch-port,
which eliminated the need for carrier sensing. Third, by using the
store-and-forward technology’s approach of inspecting each packet to
intercept corrupt or redundant data, switching eliminated unnecessary
transmission that slow the network. By employing address learning, which
replaced the inefficient receiving port.
Auto-negotiation regulates the speed and duplex of each port, based on the
capability of both devices. Flow-control allows transmission from a 100Mbps
node to a 10Mbps node without loss of data. Auto-negotiation and flow-control
may require disablement for some networking operations involves legacy
equipment. Disabling the auto-negotiation is accomplished by fixing the speed
or duplex of a port.