Transition Networks
SBFTF10xx-10x User Guide
33404 Rev. G
https://www.transition.com
Page 10 of 18
100Base-TX fiber Example
The drawing below illustrates a collision domain where two media converters are connected via fiber
cable.
Since the total of the bit-times in this example is less than 512 (50BT + 400BT + 50BT = 500BT) the path
is good.
5-Segment Rule – 10Base-T
Use the 5-Segment Rule to calculate the 10Base-T half-duplex collision domain. The 5-Segment
Rule states that a transmission path of a collision domain can consist of not more than 5 segments.
A “collision domain” and a “segment” are defined as follows:
A collision domain is the longest path in a 10Base-T network between any two terminal devices, e.g.,
a terminal, switch, or router. The SBFTF10xx-10x media converter is also a terminal device.
A segment is a cable connection between any two network interfaces within a collision domain.
