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SDH Progress Report
ETSI Technical Committee TM
Definitions and abbreviations
For the purposes of the present
document, the following definitions apply:
standardization aspects:
This subclause provides basic
information on structuring of SDH aspects and issues to be standardized,
reported or considered:
basic and overview standards and
reports:
- SDH multiplexing structure and
hierarchy;
- performance management;
- (Standardization) methods and
modelling techniques.
SDH transport network:
- architecture:
- structure;
- protection;
- tandem connection;
- interfaces:
- network/Network Node
Interface (NNI);
- users/services/User Network
Interface (UNI);
- access networks;
- leased lines;
- network management:
- resources;
- configuration;
- alarms;
- security;
- accounting;
- interfaces to other operating
systems (network management);
- performance (Quality of
Service);
- testing;
SDH equipment:
- Transmission media dependent
interfaces and functions:
- optical;
- electrical;
- radio links;
- associated equipment standards:
- characteristics and
processing of digital signals;
- operating environment;
- equipment practices;
- safety;
- testing;
- SDH equipment management:
- information model;
- functions, commissioning,
maintenance, performance monitoring;
- interface to
Telecommunications Management Network (TMN);
- reliability and availability;
synchronization network:
- transport of synchronization
signals;
- synchronization of, and for,
SDH network(s);
- performance of synchronization
network(s);
- synchronization network
management.
For the purposes of the present
document, the following abbreviations apply:
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ATM |
Asynchronous Transfer Mode |
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ATS |
Abstract Test Suite |
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CP |
Customer Premises |
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DTR |
Draft Technical Report |
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ETR |
ETSI Technical Report |
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ETS |
European Telecommunications
Standard |
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ETSI |
European Telecommunications
Standards Institute |
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ICS |
Implementation Conformance
Statement |
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MI |
Miscellaneous Item |
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MT |
Management Team |
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NE |
Network Element |
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NM |
Network Management |
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NNI |
Network Node Interface |
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OAM |
Operations And Maintenance |
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ODP |
Open Distributed Processing |
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PAC |
Programme Advisory Committee |
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PE |
Public Enquiry |
|
PDH |
Plesiochronous Digital
Hierarchy |
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QoS |
Quality of Service |
|
SDH |
Synchronous Digital Hierarchy |
|
STC |
Sub-Technical Committee |
|
TA |
Technical Assembly |
|
TC |
Technical Committee |
|
TM |
Transmission and Multiplexing |
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TMN |
Telecommunications Management
Network |
|
UNI |
User Network Interface |
|
UAP |
Unified Approval Procedure |
|
WI |
Work Item |
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