Commsplace.com Knowledge Base

Customer premises cabling for information technology
Part 1: ISDN basic access

Foreword
Introduction
1 Scope
2 Normative references
3 Definitions
4 Abbreviations and symbols

4.1 Abbreviations
4.2 Symbols

5 Design requirements

5.1 General
5.2 Insertion loss
5.3 Longitudinal conversion loss
5.4 Round trip delay
5.5 Power feeding
5.6 Electromagnetic environment
5.7 Spurs
5.8 Near end crosstalk loss (NEXT)

6 Configurations

6.1 General
6.2 The point-to-point configuration
6.3 The short passive bus configuration
6.4 The extended passive bus configuration
6.5 The Y-configuration
6.6 The star configuration
6.7 Implementation over generic cabling systems

6.7.1 General
6.7.2 ISDN generic cabling adapter
6.7.3 Requirements for ISDN generic cabling adapters
6.7.4 Configurations

7 Minimum requirements for components

7.1 General
7.2 Cables
7.3 Terminal cords
7.4 Terminating resistors
7.5 Telecommunications outlets and joint boxes
7.6 Cross connect products/patch cords

8 Cabling qualification

8.1 General
8.2 Spurs
8.3 Cabling integrity
8.4 D.c. loop resistance
8.5 D.c. resistance unbalance
8.6 Insulation resistance
8.7 Insertion loss
8.8 Round trip delay
8.9 Characteristic impedance
8.10 Near end crosstalk loss (NEXT)
8.11 Impulsive noise
8.12 Bit error rates
8.13 Longitudinal conversion loss

Annex A (informative) Bibliography