AT&T DEFINITY 2500 series user manual

User manual for the device AT&T DEFINITY 2500 series

Device: AT&T DEFINITY 2500 series
Category: Network Router
Manufacturer: AT&T
Size: 1.81 MB
Added : 7/17/2013
Number of pages: 348
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Summaries

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Abstracts of contents
Summary of the content on the page No. 1

AT&T 555-025-201
DEFINITY® Communications System
Network and Data Connectivity

Summary of the content on the page No. 2

Summary of the content on the page No. 3

CONTENTS _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ A AB BO OU UT T T TH HI IS S D DO OC CU UM ME EN NT T x xv vi ii i PREREQUISITE SKILLS AND KNOWLEDGE xvii DOCUMENT ORGANIZATION xvii HOW TO MAKE COMMENTS ABOUT THIS DOCUMENT xix 1 1. . I IN NT TR RO OD DU UC CT TI IO ON N T

Summary of the content on the page No. 4

iv CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ MULTIPLEXING OUTSIDE THE SWITCH 1-29 Multiplexing onto T1 Trunks 1-29 Compressing the Signal 1-31 Altering Cha

Summary of the content on the page No. 5

CONTENTS v _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ Internal Dial Plan 2-8 Auxiliary Call Information 2-10 Automatic Alternate Routing 2-11 Automatic Route Selection 2-14 NETWORK ADMINISTRATION 2-17 PRIVATE NETWORK TRUNKS 2-17 NETWORKING FEATURE PARAMETERS 2-17 3 3. . T TA

Summary of the content on the page No. 6

vi CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ Automatic Route Selection 5-7 ETN INTERACTIONS WITH OTHER NETWORKS 5-7 Extension Number Portability Clusters 5

Summary of the content on the page No. 7

CONTENTS vii _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ Parallel vs. Serial 7-6 Transmission Speed 7-6 Type of Communications Channel 7-7 SPECIAL DATA FEATURES 7-9 Terminal Dialing 7-9 Data Call Setup From a Voice Terminal 7-10 Computer Dialing 7-10 Data Hot Line 7-10 Data Pr

Summary of the content on the page No. 8

viii CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ The Communication System as a LAN Backup 8-20 PUBLIC AND PRIVATE DATA NETWORK CONNECTIONS 8-21 PUBLIC DATA N

Summary of the content on the page No. 9

CONTENTS ix _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ USE OF GENERIC 2 AS A SYSTEM CLOCK REFERENCE B-29 USE OF GENERIC 1 AS A SYSTEM CLOCK REFERENCE B-30 C C. . T TR RU UN NK KI IN NG G T TE ER RM MS S A AN ND D C CA AP PA AB BI IL LI IT TI IE ES S C C- -1 1 D D. . C CO OM M

Summary of the content on the page No. 10

x CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ LIST OF FIGURES Figure 1-1. Analog-to-Digital Conversion 1-4 Figure 1-2. Transmission States for Voice Communic

Summary of the content on the page No. 11

CONTENTS xi _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ Figure 6-3. Direct Link DCS Connections 6-5 Figure 6-4. Minimized Link Connections 6-6 Figure 6-5. DCIU/PI Linkage in a DCS Cluster 6-7 Figure 6-6. Short Haul Analog Signaling: System 75/G1 to System 75/G1 Via DSU 6-8 Fig

Summary of the content on the page No. 12

xii CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ Figure 8-9. Common ISN Configuration 8-18 Figure 8-10. LAN-to-LAN Connections Through the Switch 8-19 Figure 8

Summary of the content on the page No. 13

CONTENTS xiii _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ Figure B-11. External and Internal Reference Levels B-19 Figure B-12. Nonpublic Network without Digital Switches B-20 Figure B-13. Proper Use of Backup Facilities B-21 Figure B-14. Improper Use of Backup Facilities B-22

Summary of the content on the page No. 14

xiv CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ LIST OF TABLES Table 1-1. Terminal/Port Compatibility 1-9 Table 1-2. Trunk Port Types 1-10 Table 1-3. Protoco

Summary of the content on the page No. 15

CONTENTS xv _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ Table 8-8. Requirements for PBX-to-PBX Private Network Spectrum Connections 8-29 Table B-1. SCS References Switches B-10 Table D-1. Some CCITT Digital Standards D-6 Table D-2. Some CCITT Analog Standards D-7 Table D-3. So

Summary of the content on the page No. 16

xvi CONTENTS _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________

Summary of the content on the page No. 17

ABOUT THIS DOCUMENT _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ This document explains how to arrange two or more communications systems in a network. It also tells how to use your communications system to connect one data communications device or network to another device or

Summary of the content on the page No. 18

xviii ABOUT THIS DOCUMENT _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________ PART I • Chapter 2 — Communications System Networking — An Overview— Introduces the networking s

Summary of the content on the page No. 19

ABOUT THIS DOCUMENT xix _ _ ______________________________________________________________________________________ ______________________________________________________________________________________ _ ______________________________________________________________________________________ HOW TO MAKE COMMENTS ABOUT THIS DOCUMENT Reader comment cards are in the back of this document. While we have tried to make this document fit your needs, we are interested in your suggestions for improving it a

Summary of the content on the page No. 20

xx ABOUT THIS DOCUMENT _ _ ___________________________________________________________________________________________________________________________ ___________________________________________________________________________________________________________________________ _ ___________________________________________________________________________________________________________________________


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