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Table of Contents

1. Install and Repair of Telecom Lines ................................................................................................................. 7
1.1 Transmission Lines ..................................................................................................................................... 9
1.1.1 Powering the Telephone System ...................................................................................................... 10
1.2 Cable Characteristics ................................................................................................................................ 12
1.2.1 Type of Cables ................................................................................................................................... 14
1.2.2 Color Codes ........................................................................................................................................ 14
1.3 PSTN (Public Switched Telephone Network)........................................................................................... 16
1.3.1 Connections at CO ............................................................................................................................. 17
1.3.2 CO Tools ............................................................................................................................................. 20
1.3.2 Connector Terminations ................................................................................................................... 21
1.3.3 BIX Installation .................................................................................................................................. 23
1.4 Serving Area Concept Box/JWI/XCONN .................................................................................................. 25
1.4.1 SAC to House components ................................................................................................................ 29
1.4.2 Binding post blocks ........................................................................................................................... 30
1.4.3 Tools Used ......................................................................................................................................... 34
1.5 Terminal Types ......................................................................................................................................... 35
1.5.1 Binding Post Counting ....................................................................................................................... 36
1.5.2 Clear Capping..................................................................................................................................... 37
1.5.4 Protectors, Bonding and Grounding ................................................................................................. 38
1.5.5 Terminal Wiring ................................................................................................................................. 39
1.6 NID (Network Interface Device) ............................................................................................................... 40
1.6.1 NID Install and Upgrade .................................................................................................................... 42
1.7 Drops ........................................................................................................................................................ 46
1.7.1 Attaching Drops ................................................................................................................................. 49
1.7.2 Aerial drop routing ............................................................................................................................ 52
1.7.3 Attaching Underground Drops .......................................................................................................... 54
1.7.4 Repair a Buried Drop ......................................................................................................................... 56
1.8 POTS Splitter ............................................................................................................................................. 57
1.9 Alarm Jacks ............................................................................................................................................... 58
1.10 Reviewing Different types of Order ....................................................................................................... 62
2. ADSL ................................................................................................................................................................ 65
2.1 DMT (Discrete Multi-tone Modulation) .................................................................................................. 68
2.1.1 DMT2 ................................................................................................................................................. 68
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