AT&T DEFINITY 7200 series - Manual (Page 6)

vi CONTENTS
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Automatic Route Selection 5-7
ETN INTERACTIONS WITH OTHER NETWORKS
5-7
Extension Number Portability Clusters
5-8
Software-Defined Network
5-9
Release Link Trunk Networks — CAS and ACD
5-12
Distributed Communications System Clusters 5-14
Main-Satellite/Tributary Networks 5-14
ENGINEERING CONSIDERATIONS 5-14
6 6. . D DI IS ST TR RI IB BU UT TE ED D C CO OM MM MU UN NI IC CA AT TI IO ON NS S S SY YS ST TE EM M ( (D DC CS S) ) 6 6- -1 1
DCS CLUSTERS 6-2
DCS LINKS 6-2
Tie Trunks 6-3
Signaling Links 6-3
DCS SIGNALING LINK CONNECTIONS 6-8
System 75 or Generic 1 (G1) to System 75 or G1 6-8
System 85 or Generic 2 (G2) to System 85 or G2 6-10
System 75 or Generic 1 (G1) to System 85 or Generic 2 (G2) 6-12
DIMENSION Signaling Links
6-14
TRANSPARENT FEATURES
6-14
Transparent Attendant Features
6-14
Transparent Voice Terminal Features 6-17
Audio Information Exchange (AUDIX) Features Transparency 6-19
ENGINEERING CONSIDERATIONS 6-21
ADMINISTRATION CONSIDERATIONS 6-23
7 7. . D DA AT TA A C CO ON NN NE EC CT TI IV VI IT TY Y — — A AN N O OV VE ER RV VI IE EW W 7 7- -1 1
DATA COMMUNICATIONS VARIABLES 7-2
Communications Protocols 7-2
Analog vs. Digital 7-4
Synchronous vs. Asynchronous 7-4
Simplex vs. Half-Duplex vs. Full-Duplex 7-5