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CONTENTS
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System 85 Traditional Modules
3-9
Generic 1 and Generic 2 Universal Modules
3-9
4. THE DIGITAL LOSS PLAN
LOSS-PLAN IMPLEMENTATION AND PROVISIONING
Generic 2
Generic 1
PORT-TO-PORT LOSS VALUES
DS1/DMI/ISDN-PRI PORT LOSSES
TERMINATING A DS1 AT A CHANNEL BANK
Tie Trunk Ports
CO DID Trunk Ports
OPS Ports
5. SYNCHRONIZATION OF DIGITAL FACILITIES
THE NEED FOR SYNCHRONIZATION
SYNCHRONIZATION HIERARCHY
System 85 and Generic 2 Synchronization Architecture
System 85 and Generic 2 Synchronization Software Operation
CHANGES TO THE SCS SOFTWARE MADE AVAILABLE VIA SOFTWARE PATCHES
System 75 and Generic 1 Synchronization Architecture
System 75 and Generic 1 Synchronization Software Operation
The External Synchronization Clock
NETWORK SYNCHRONIZATION AND ENGINEERING
Selecting a Timing Source for the Switch
Internal Reference Selection Rules
External-Reference Selection Rules
AVAILABILITY OF SYNCHRONIZATION SOURCES
CONCLUSIONS ON SYNCHRONIZATION
USE OF GENERIC 2 AS A SYSTEM CLOCK REFERENCE
ISDN-PRI Trunk Facilities (ANN35 or TN767 with TN755)
Line-Only Mode DS1/DMI-BOS (ANN11_ or TN767)
4-1
4-2
4-2
4-3
4-4
4-6
4-6
4-6
4-6
4-7
5-1
5-1
5-3
5-7
5-9
5-11
5-11
5-12
5-14
5-18
5-18
5-19
5-27
5-28
5-29
5-29
5-29
5-29