Question

If you wish to run Ethernet over fiber using 1000BASE-SX signaling over 500 meters, what options(list...

  1. If you wish to run Ethernet over fiber using 1000BASE-SX signaling over 500 meters, what options(list all the pairs of signaling standard and fiber standards) do you have? Which should you choose? Justify your answer.
  2. If you wish to connect two switches with fiber at a speed of 30 G b p s, what options do you have? Which would you choose? Justify your answer.
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Answer #1

a) OM3, OM4

The OM3 fiber spec indicates that OM3 fiber is mainly designed for 10 Gb/s transmission speed, but it also can run under 40 Gb/s and 100 Gb/s. As an advancement of OM3 fiber, OM4 fiber is chiefly used for 10G, 40G and 100G Ethernet. Both OM3 and OM4 fibers support 40 Gb/s and 100 Gb/s speeds when they are terminated with 8/12-fiber MTP/MPO connectors and 24-fiber MTP/MPO connectors respectively. The 40G interfaces are 4x10G channels on four fibers per direction and the 100G interfaces are 10x10G channels on 10 fibers per direction.

b) OM3, OM4 10gbase-SR w/ 10GBPS
bond 3 cables or bigger w/ OM3, OM4 40gbase-SR4 w/ 40gbps
Choose 10gbase-SR w/ 3 cables is cheaper
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