The 3Com 3CSFP86 Fast Ethernet SFP transceiver enables one 100BASE-BX10-U fiber connection. **Not for use in Gigabit SFP ports as found in many other switches.
***For each 100BASE-BX10 link, one end must be terminated in 100BASE-BX10-D, and the other in 100BASE-BX10-U, for the link to work correctly***
This SFP can be used only for 100Mb connections in the following switches: 3C168915,
3CR17181-91, 3CRWX220095A, 3CR17332-91, 3CR17343-91, 3CR17342-91, 3CR17341-91, 3CR17333-91, 3CR17331-91