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Black Box LH1500 Media Converters Installation and User Guide (08/05)
Twisted Pair
(100BASE-TX)
Fiber Multimode
(100BASE-FX)
L
I
N
K
LINK
PWR
Black Box
Media Converter
100 Mb/s
UP LINK
Segment Y
10m (33ft)
Segment X
1500m (4920ft)
Connectivity between 100BASE-TX and 100BASE-FX Ethernet Media.
In the example figure shown above, the length of fiber Segment X is 1500m
(4920 ft). This is 75% of the maximum allowable distance for multi-mode 100BASE-FX
fiber full-duplex media (2000 m) [75/2000 x 100% = 75%]. The length of twisted pair
Segment Y is 10m (33 ft). This is 10% of the maximum allowable distance for
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