Switches
April 2003
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The company's EISX9-100T Industrial Ethernet switch, now a part of the CTRLink(R) family, is said to be effective for industrial and commercial applications requiring temperature ranges from -40°C to 75°C

(-40°F to 167°F). The EISX9-100T segments the Ethernet LAN into nine collision domains, acting as a bridge between data links to produce a larger network diameter reportedly possible than with repeating hubs. Each port automatically negotiates its data rate to 10 Mbps or 100 Mbps, and controls data flow with the a PAUSE function in full-duplex or the back pressure mode in half-duplex. The switch learns port assignments by reading Ethernet frames and logs source addresses on a table that can hold 2,048 addresses. With this information, throughput is reportedly enhanced by limiting traffic to those only ports party to a data exchange - while other data is simultaneously interchanged on other ports. The store-and-forward process is implemented, and broadcast, multicast, or unicast transmissions are received by all ports. Contemporary Controls


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