REQUIREMENTS/SPECIFICATIONS
2-6
— 16 Mbit/s ring speed and 130 stations.
— The building has 60 meters of Type 1 cable in the wall.
— What is the length of Type 6 cable available to connect from the
TCU port to the patch panel and from the local wall jack to the
station?
— Type 6 can only go 2/3 the distance of Type 1.
Solution:
100 meters = maximum cable length if only Type 1 cable is used
[60 meters of Type 1] + [40 meters of Type 1] = max. length
[60 meters of Type 1] + [(0.66) x (40 meters) of Type 6 ] = max.
length
|
|
26.4 meters of Type 6 = Max. length
(for patch panel and wall jack connections)
2.1.2
Cabling Recommendations
Crosstalk, noise, and the number and quality of connections
determine reliable data propagation and your network’s error rate.
Crosstalk is interference caused by signal coupling between the
different cable pairs contained within a multi-pair cable bundle.
Multi-pair cables should not be used for UTP lobe cabling. STP lobe
cabling should be dedicated to carrying token ring traffic. Avoid
mixing token ring signals with other applications (voice, etc.)
within the same cable.
