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Week Three Homework

In: Computers and Technology

Submitted By kccollegeman
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Carlyle Brown
Network Protocols and Standards
Week 3 Homework

1. When was the first major standard describing a structured cabling system released?
c. 1995
2. Why is balance an issue in UTP cables, and what is TCL?
i. The balance or symmetry of the signal over the wire pairs helps minimize unwanted leakage of the signal. ii. TCL - Transverse Conversion Loss - The TCL measurement is obtained by applying a common-mode signal to the input and measuring the differential signal level on the output. a. TCL is sometimes called LCL (Longitudinal Conversion Loss). The ELTCLT value (expressed in dB) is the difference between the TCTL and the differential mode insertion loss of the pair being measured. TCTL is the loss from a balanced signal at the near-end to the unbalanced signal at the far end.

Section 2-2

1. When was the first major standard describing a structured cabling system released? c. 1995

2. What doe EIA and TIA stand for? i. EIA – Electronics Industries Alliance ii. TIA – Telecommunications Industry Association 3. What are the three parts of the EIA/TIA 568-B standard? i. EIA/TIA-568-B.1: Commercial Cabling Standard, Master Document ii. EIA/TIA-568-B.2: Twisted-pair Media iii. EIA/TIA-568-B.3: Optical Fiber Cabling Standard

4. Identify the six subsystems of a structured cabling system. i. Building Entrance (Also called (EF) Entrance Facilities) ii. Equipment Room (ER) iii. Telecommunications Closet (Also called (TR) Telecommunications Room or (TE) Telecommunications Enclosure) iv. Backbone Cabling v. Horizontal Cabling vi. Work Area

5. Which subsystem does permanent networking cabling within a building belong to? i. Backbone Cabling

6. What is a cross-connect? i. Cross-connect – A space where you are going to take one or…...

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