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Lesson 6 - Overview of a Structured Cable Plant
Cabling Types
The EIA/TIA-568 standard specifies the types of cable that may be used in various subsystems.
Vertical (Backbone) Cabling
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100-ohm UTP, Category 3, 4, or 5 (Category 5 recommended), in 25-pair bundles.
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150-ohm STP
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62.5/125-micron (or millionths of a meter [µm]) multimode optical fiber cable (where 62.5 refers to the core diameter and 125 refers to the cladding diameter), in groups of 6 to 12 fibers per sheath. Multimode cable sheaths are colored beige.
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Single-mode optical fiber cable, in groups of 6 to 12 fibers per sheath. Single-mode cable sheaths are colored blue.
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Horizontal Cabling
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Four-pair 100-ohm UTP, Category 3, 4, or 5
(Category 5 recommended)
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Two-pair 150-ohm STP
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Two-fiber, 62.5/125-µm multimode optical fiber cable
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Activities
See the Activities and Extended Activities section in Unit 2 Lesson 6 in your textbook Introduction to Networking to test what you have learned so far.
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