Communications System Owner Manual

ManualsBrandsAT&T ManualsNetwork RouterDEFINITY 7400 series

100

Table Of Contents

Table of Contents
ABOUT THIS DOCUMENT
- PREREQUISITE SKILLS AND KNOWLEDGE
- DOCUMENT ORGANIZATION
- HOW TO MAKE COMMENTS ABOUT THIS DOCUMENT
1. INTRODUCTION TO CONNECTIVITY
- TRANSMISSION TYPES
- TRANSMISSION STATES
  - VOICE TRANSMISSION
    - Entering the Switch
    - Exiting the Switch
  - DATA TRANSMISSION
- MULTIPLEXED COMMUNICATION
- TRUNKING
2. COMMUNICATION SYSTEM NETWORKING (em AN OVERVIEW
- TYPES OF NETWORKS
- NETWORK EVOLUTION
- SOFTWARE CAPABILITIES
- NETWORK CALL PROCESSING
- NETWORK ADMINISTRATION
- PRIVATE NETWORK TRUNKS
- NETWORKING FEATURE PARAMETERS
3. TANDEM TIE TRUNK NETWORKS
- INTERACTIONS WITH OTHER NETWORKS
4. MAIN-SATELLITE/TRIBUTARY (MS/T) NETWORKS THROUGH THE UDP OR MULTIPREMISES PACKAGES
- MS/T CONFIGURATIONS
  - Main-Satellite Configuration
  - Main-Tributary Configuration
- MS/T FEATURES
- ENGINEERING CONSIDERATIONS
- INTERACTIONS
5. ELECTRONIC TANDEM NETWORK (ETN) THROUGH THE ETN AND PNA PACKAGES
- ETN CONFIGURATIONS
- ETN TRUNKS
  - Access and Bypass Access Tie Trunks
  - Off-Net Trunks
- FEATURES
- ETN INTERACTIONS WITH OTHER NETWORKS
- ENGINEERING CONSIDERATIONS
6. DISTRIBUTED COMMUNICATIONS SYSTEM (DCS)
- DCS CLUSTERS
- DCS LINKS
  - Tie Trunks
  - Signaling Links
- DCS SIGNALING LINK CONNECTIONS
- TRANSPARENT FEATURES
- ENGINEERING CONSIDERATIONS
- ADMINISTRATION CONSIDERATIONS
7. DATA CONNECTIVITY - AN OVERVIEW
- DATA COMMUNICATIONS VARIABLES
- SPECIAL DATA FEATURES
8. DATA COMMUNICATIONS CAPABILITIES
- DTE CONNECTIONS
- LOCAL AREA NETWORK CONNECTIONS
- PUBLIC AND PRIVATE DATA NETWORK CONNECTIONS
  - PUBLIC DATA NETWORKS
    - Packet-Switched Public Data Networks
    - Circuit-Switched Public Data Networks
  - PRIVATE DATA NETWORKS
    - Terrestrial Private Data Network Links
    - Satellite Private Data Network Links
- TELEMARKETING HOST CONNECTIONS
  - THE ISDN GATEWAY
  - THE INTEGRATED TELEMARKETING GATEWAY
- DATA NETWORK ADMINISTRATION
9. DATA COMMUNICATIONS CONFIGURATIONS
- DSC AND PSC CONNECTIONS
- SNA NODE CONNECTIONS
- CONNECTIONS THROUGH PUBLIC OR PRIVATE DATA NETWORKS
A. RELATED DOCUMENTS
B. SYNCHRONIZATION OF DIGITAL FACILITIES
- THE NEED FOR SYNCHRONIZATION
- SYNCHRONIZATION HIERARCHY
- CHANGES TO THE SCS SOFTWARE MADE AVAILABLE VIA SOFTWARE PATCHES
- NETWORK SYNCHRONIZATION AND ENGIINEERING
- AVAILABILITY OF SYNCHRONIZATION SOURCES
- CONCLUSIONS ON SYNCHRONIZATION
- USE OF GENERIC 2 AS A SYSTEM CLOCK REFERENCE
- USE OF GENERIC 1 AS A SYSTEM CLOCK REFERENCE
C. TRUNKING TERMS AND CAPABILITIES
D. COMMUNICATIONS PROTOCOLS
- OSI MODEL
- STANDARD PROTOCOLS
- AT&T PROTOCOLS
E. LEAD DEFINITIONS
F. NETWORKING FEATURES - AVAILABILITY MATRIX
ABBREVIATIONS
GLOSSARY
INDEX

MAIN-SATELLITE/TRIBUTARY (MS/T) NETWORKS THROUGH THE UDP OR MULTIPREMISES PACKAGES 4-3

_ ______________________________________________________________________________________

CENTRAL

OFFICE

LDN

TRIBUTARY

EXTENSIONS

3600-3699

TRUNK

TIE

NETWORK INWARD

DIALING (NID)

RNX (542-XXXX)

MAIN PBX

EXTENSIONS

2800-2899

3200-3299

SATELLITE

PBX (B)

EXTENSIONS

3400-3499

SATELLITE

PBX (A)

EXTENSIONS

3300-3399

3500-3599

ETN NETWORK

REMOTE ACCESS

TRUNK

TIE

CENTRAL

OFFICE

(725-XXXX)

(727-XXXX)

LDN/DID

Figure 4-2. MS/T Coordinated Numbering

Main-Tributary Conﬁguration

A main-tributary conﬁguration is one in which the subtending location is the tributary. This conﬁguration

is very similar to a main-satellite conﬁguration with the following exceptions:

1. The main has its own LDN and the tributary usually has its own LDN. (See ﬁgure 4-2.)

2. A tributary can have one or more attendant positions.

3. A tributary usually has public network trunks.