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Black Box LH1500 Media Converters Installation and User Guide (08/05)
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This is 12% of the maximum allowable distance for 100BASE-TX full-duplex twisted-
pair media (100 m) [12/100 x 100% = 12%]. The total of the two percentages (57% +
12%) is 69%, which is allowable.
3.2.2 Segment Distances, Half-duplex
Fast Ethernet shared bandwidth devices operate with multiple nodes in a traffic
domain. When a node attempts to send a packet, it may hit another packet passing by,
i.e., a collision may occur. This is normal and does not cause a problem because the
Ethernet protocol provides for this situation and requires that the sender wait and try
again. When installing the Black Box LH1500 in a half-duplex segment, it is important
to consider the collision domain of the segment, including the LH1500 itself, repeaters
and hubs present, and the lengths of both of the attached media types.