AT&T DS1/DMi/ISDN-PRI manual List of Figures

xiiCONTENTS

				LIST OF FIGURES
Figure 1-1.	System 85 R2V4 ISDN Configuration
Figure 1-2.	Generic 2 ISDN Network Configuration
Figure 1-3.	Generic 1 ISDN Network Configuration
Figure 1-4.	D4 Framing
Figure 1-5.	DS1 Extended Superframe Format
Figure 1-6.	DS1 Signal, Framing Format, and ESF Superframe (24 Frames)
Figure 1-7.	Alternate	Mark		Inversion
Figure 1-8.	Example of B8ZS Line Coding
Figure 1-9.	ISDN Message			Signaling Format
Figure 3-1.	On-PremisesMetallic-Cable Configurations
Figure 3-2.	Off-Premises Metallic Cable Configuration
Figure 3-3.	Nonmetallic		Cabling Configurations
Figure 3-4.	CEM and CDM Cable Configurations
Figure 4-1.	End-to-End Loss Configuration Using Combination Tie Trunks
Figure 5-1.	Options	for	Synchronization
Figure 5-2.	Synchronization			Hierarchy
Figure 5-3.	Stratum Levels for the Synchronization Hierarchy
Figure 5-4.	SCS (Generic 2)
Figure 5-5.	Duplicated Synchronization Architecture and Cross Coupling
Figure 5-6.	Tone-Clock Synchronizer (Nonduplicated, Generic 1)
Figure 5-7.	Public-Network External Clock
Figure 5-8.	External	Clock
Figure 5-9.	External-Clock			Interface
Figure 5-10.	External-Clock Duplicated Synchronization
Figure 5-11.	External and Internal Reference Levels
Figure 5-12.	Nonpublic Network without Digital Switches
Figure 5-13.	Proper Use of Backup Facilities
Figure 5-14.	Improper Use of Backup Facilities
Figure 5-15.	Optimal	Diverse		Routing
Figure 5-16.	Less Than		Optimal Diverse Routing

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