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DMS-250
Reference manual
Table Of Contents - Nortel DMS-250 Reference Manual
Digital switching systems
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Reference manual
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Contents
Table of Contents
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Contents
About this document
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
Introduction
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
DS-1 configuration
Introduction
2-1
Hardware configuration
2-1
Commissioning
2-3
Performance and maintenance
2-10
Input prompt (>) xx
Commands and fixed parameters
xx
Variables
xx
Responses
xx
Layer 1 (physical) protocol
1-5
Layer 2 (link) protocols
1-5
Layer 3 (network) protocols
1-6
Layer 4 (application) protocols
1-6
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 group alarms
2-10
Carrier group alarms
2-10
Alarms
2-10
Display fields
2-11
Digital Switching Systems DMS-250 ISDN Reference Manual MWC14 (CSP14)
v
xv
1-1
2-1
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