Communications System Owner Manual
Table Of Contents
- Table of Contents
- ABOUT THIS DOCUMENT
- 1. INTRODUCTION TO CONNECTIVITY
- 2. COMMUNICATION SYSTEM NETWORKING (em AN OVERVIEW
- 3. TANDEM TIE TRUNK NETWORKS
- 4. MAIN-SATELLITE/TRIBUTARY (MS/T) NETWORKS THROUGH THE UDP OR MULTIPREMISES PACKAGES
- 5. ELECTRONIC TANDEM NETWORK (ETN) THROUGH THE ETN AND PNA PACKAGES
- 6. DISTRIBUTED COMMUNICATIONS SYSTEM (DCS)
- 7. DATA CONNECTIVITY - AN OVERVIEW
- 8. DATA COMMUNICATIONS CAPABILITIES
- 9. DATA COMMUNICATIONS CONFIGURATIONS
- 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
- E. LEAD DEFINITIONS
- F. NETWORKING FEATURES - AVAILABILITY MATRIX
- ABBREVIATIONS
- GLOSSARY
- INDEX
ELECTRONIC TANDEM NETWORK (ETN) THROUGH THE ETN AND PNA PACKAGES 5-3
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ACCESS
TIE
TRUNKS
TRUNKS
INTERMACHINE
TIE
TRUNKS
DDD
WATS
FX
TIE
DDD
WATS
FX
DDD
WATS
FX
TANDEM
SWITCH TANDEM SWITCH
PBX
DIMENSION SYSTEM 85
TANDEM
SWITCH
SYSTEM 85
TANDEM
SWITCH
SYSTEM 85
MAIN
SATELLITE TRIBUTARY
SATELLITE
MAIN
IXC
IXC
SATELLITE
TRIBUTARY
MAIN
MAIN
BYPASS
ACCESS
TIE TRUNK
FINAL
OVERFLOW
PRIMARY
HIGH USAGE
LOWER LEVEL
OVERFLOW
FINAL
UPPER LEVEL
INTERMEDIATE
HIGH USAGE
FINAL
IXC
PUBLIC NETWORK
(OFF-NET)
PRIVATE NETWORK
(ON-NET)
MAIN
MAIN
TRIBUTARY
Figure 5-1. Typical 2-Level Hierarchical Electronic Tandem Network (ETN) Configuration