AT&T DS1/DMi/ISDN-PRI manual Intended Audiences, Prerequisite Skills and Knowledge

xxABOUT THIS DOCUMENT

INTENDED AUDIENCES

Since this document contains information ranging from the brief tutorial to the detailed requirements, it should prove useful to several groups of readers, including:

●Marketing personnel

●Technical consultants

●Network engineers

●Installation personnel

●System administrators

●Account teams

●Customers

PREREQUISITE SKILLS AND KNOWLEDGE

While there are no prerequisite skills assumed in this document, a basic understanding of telephony and networking is required. The GLOSSARY and ABBREVIATIONS appendixes of this document are provided to assist you in understanding the terminology used herein. See the Related Sources heading later in this preface, About This Document, for a list of other documents that discuss similar topics.

HOW THIS DOCUMENT IS ORGANIZED

This document consists of the following chapters:

1.INTRODUCTION — Provides a high-level functional description of the DS1/DMI/ISDN-PRI channels, available framing formats, signaling options, and line coding formats.

2.NETWORK CONNECTIONS AND CONFIGURATIONS — Describes functional connection arrangements to private network facilities (private endpoints) and to public network facilities (public endpoints). Included along with the public network discussions are Switched Access connections and services. This section also describes connection arrangements using digital multiplexer transmission equipment.

3.DS1 — TRANSMISSION AND CABLING — Describes cable distance limitations versus cable size, permitted cable types, the DSX-1 interface specification, the need and function of customer service units, on- and off-premises cable configurations, metallic and nonmetallic cable options, and equalizer and compensation settings.

4.THE DIGITAL LOSS PLAN — Describes transmission loss concepts, the analog and digital loss plans and the differences between them, and the user or installer impact (switch settings and administration values).

5.SYNCHRONIZATION OF DIGITAL FACILITIES — Describes synchronization strategies, objectives, and requirements. This chapter also discusses the availability of synchronization sources and includes the rules for selecting and assigning primary and secondary references and facilities.