Digital Switching Systems DMS-250 ISDN Reference Manual MWC14 (CSP14)
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Contents
About this document xv
When to use this document xv
Intended audience xv
How this book is organized xv
Intended audience xvii
Applicability of this document xvii
How to check the version and issue of this document xvii
References in this document xviii
What precautionary messages mean xviii
How commands, parameters, and responses are represented xix
Input prompt (>) xx
Commands and fixed parameters xx
Variables xx
Responses xx
Introduction 1-1
Primary rate interface 1-1
Q.931 signaling protocol 1-2
Protocol overview 1-2
OSI protocol layers 1-2
ISDN protocol layers 1-4
Layer 1 (physical) protocol 1-5
Layer 2 (link) protocols 1-5
Layer 3 (network) protocols 1-6
Layer 4 (application) protocols 1-6
DS-1 configuration 2-1
Introduction 2-1
Hardware configuration 2-1
Commissioning 2-3
Frame formats 2-3
Channel ordering sequence 2-5
Line coding 2-6
Network customer terminating equipment and cross-connect point 2-7
Test equipment requirements 2-9
Performance and maintenance 2-10
Performance group alarms 2-10
Carrier group alarms 2-10
Alarms 2-10
Display fields 2-11
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