3Com 5104M-FL1 10BASE-FL Backbone, Unshielded Twisted Pair to-the-Desk, Path

Because it is not always obvious which path between transceivers has the greatest fiber equivalent distance, use Table 2-6 to help you determine the equivalent distances.

Table 2-6. Fiber Equivalent Distances Between Transceivers

	Total Fiber	Number of	Equivalent	Total
	Distance	Concentrators	Fiber	Fiber
Path	Between	(10BASE-FL	Distance of	Equivalent
	Transceivers	Modules)	Concentrator	Distance
	(meters)	Between	(meters)	(meters)
		Transceivers
A-D	1700	4	2240	3940
A-E	1400	4	2240	3640
A-F	2200	4	2240	4440
D-E	900	3	1680	2580
D-F	1700	3	1680	3380
F-E	1400	3	1680	3080

10BASE-FL Backbone, Unshielded Twisted Pair to-the-Desk

Designing a network with unshielded twisted pair cabling to-the-desk is similar to an all-10BASE-FL network because the cabling is star-wired in both cases (see Figure 2-7). See the section in this chapter “10BASE-FL Backbone, 10BASE-FL to-the-Desk” for more information on all-10BASE-FL networks.

2 - 20 ONline Ethernet 10BASE-FL Installation and Operation Guide