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Designing and Expanding the Network 2 - 5
Equivalent Fiber Distances
Equivalent fiber distance is the sum of both the incoming and outgoing
module port signals. Different products, however, have different
equivalent distances. Table 2-2 lists the equivalent fiber distance of 3Com
ONline LAN products.
Table 2-2. Equivalent Fiber Distances of LAN Products
LAN Product
Equivalent Fiber
Distance (meters)
ONline Ethernet 10BASE-FB Modules
(5104M-FB1, 5102M-FBP, 5104M-FBP)
190
Incoming signal to fiber port 140
Outgoing signal from fiber port 50
ONline Ethernet 10BASE-FL Module (5104M-FL1) 560
Incoming signal to fiber port 330
Outgoing signal from fiber port 230
ONline Ethernet 10BASE-T Module (5108M-TP) 585
Incoming signal to TP port 420
Outgoing signal from TP port 165
ONline Ethernet 50-Pin Module
(5112M-TPL, 5112M-TPPL)
585
Incoming signal to TP port 420
Outgoing signal from TP port 165
ONline Ethernet 24-Port Module (5124M-TPCL,) 585
Incoming signal to TP port 420
Outgoing signal from TP port 165