1 - 4 ONline Ethernet 10BASE-FB Module Installation and Operation Guide
10BASE-FB Compliance
The ONline Ethernet Port-Switching 10BASE-FB Mo dules and the ONline
Ethernet 10BASE-FB Module are fully compliant with the IEEE 10BASE-FB
fiber standard. The IEEE ratification o f the 10BASE-FB standard validates
synchronous fiber Ethernet as the choice for ba ck bone links. Synchronous
technology provides robust transmission for fiber Etherne t ba ckbones.
Compliance with the 10BASE-FB st andard allows 3Com fiber m odules to be
compatible with:
❑Industry 10BASE-FB-compliant produc ts
❑Existing 3Com 10BASE-FB technology
3Com 10BASE-FB Modules implemen t Ethernet/IEEE 802.3 physical layer
functionality on a fiber optic medium. Full interconnection of all devices
that comply with Ethernet V2.0 or IEEE 802.3 specificat ions are provided,
including:
❑Minicomputers
❑Engineering workstations
❑PC networking servers
❑Bridges
Theory of Operation
The 10BASE-FB Modules serve main ly as network backbone links. Network
backbone links connect concentra tors together. You may also use the
10BASE-FB Modules to connect direc tly to devices using the:
❑3Com 5101T-FB Transceiver
❑3Com 5102T-FBFT Fault-Tolerant Trans ceiver