SIST EN 300 462-2-1 V1.1.2:2003

• Abstract:

  Stadardises SDH timing distribution architectures, synchronisation network level jitter and wander requirements, slave clock timing specifications and primary reference clock specifications.

• Status: Published
• Publication Date: 30-Nov-2003
• ICS: 33.040.20 - Transmission systems
• Technical Committee: SS EIT - Technical Board for the electrotechnical, information technology and telecommunications fields
• Current Stage: 6060 - National Implementation/Publication (Adopted Project)
• Start Date: 01-Dec-2003
• Due Date: 01-Dec-2003
• Completion Date: 01-Dec-2003
• Ref Project: ETSI EN 300 462-2-1 V1.1.2 (1999-08) - Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 2-1: Synchronization network architecture

SIST EN 300 462-2-1 V1.1.2:2003 is the Slovenian standard that reproduces ETSI EN 300 462-2-1 Version 1.1.2. It covers synchronization network architecture for Transmission and Multiplexing (TM), including SDH timing distribution architectures and network-level jitter and wander requirements. It is aimed at people who design, specify, verify or buy synchronization network and clock equipment.

What does SIST EN 300 462-2-1 V1.1.2:2003 specify?

SIST EN 300 462-2-1 V1.1.2:2003 specifies the architecture and timing-related requirements for synchronization networks used in TM systems. In practice, it sets the framework for how timing is distributed and how key clock types are characterized.

The standard focuses on four technical areas:

• SDH timing distribution architectures
• synchronization network level jitter and wander requirements
• slave clock timing specifications
• primary reference clock specifications

The document is organized with a foreword, scope, references, definitions, abbreviations and history. That structure helps the reader get the terms straight before using the architecture and timing material in design or verification work.

What are the key requirements of SIST EN 300 462-2-1 V1.1.2:2003?

SIST EN 300 462-2-1 V1.1.2:2003 is mainly about how synchronization networks are arranged and what timing behavior those networks and clocks must support. The practical value is that it gives designers and evaluators a common basis for comparing network timing schemes.

SDH timing distribution architecture

The standard standardises SDH timing distribution architectures. For a network designer, this means the document is about the overall timing path, not just one clock or one interface. It helps define how timing should move through the network.

Network-level jitter and wander

SIST EN 300 462-2-1 V1.1.2:2003 includes synchronization network level jitter and wander requirements. In practice, this matters because jitter and wander are the timing variations that affect transmission quality and clock stability, so they must be considered when planning, measuring or testing synchronization performance.

Slave clock timing specifications

The standard includes slave clock timing specifications. That tells equipment designers and buyers that slave clocks are part of the synchronization hierarchy covered by the document, and that their timing behavior must be evaluated against the network architecture.

Primary reference clock specifications

SIST EN 300 462-2-1 V1.1.2:2003 includes primary reference clock specifications. The PRC is the reference timing source in the network, so its specification is important when defining how accurate and stable the synchronization chain can be.

Network structure and timing relationships

The document content points to synchronization links, logical node boundaries and node clocks as part of the architecture. In practice, that means the standard is concerned with how timing passes between nodes and where the boundaries are when timing is distributed or recovered.

Operating cases and recovery

The visible document structure also refers to synchronous, plesiochronous and asynchronous cases, as well as PRC timing recovery. That is useful when specifying how equipment behaves under different timing relationships and how it returns to reference timing.

Verification context

The document includes verification-related material. For users, that indicates the standard is not only about architecture in theory, but also about checking whether a network or clock implementation follows the intended synchronization model.

What terms does SIST EN 300 462-2-1 V1.1.2:2003 define?

• SDH - The timing distribution environment addressed by the standard.
• jitter - Short-term timing variation considered at the network level.
• wander - Longer-term timing variation considered at the network level.
• slave clock - A clock whose timing is specified within the synchronization network hierarchy.
• PRC - Primary reference clock, the reference timing source used by the network.
• synchronization links - The links that carry timing information through the network.
• node clock - The clock associated with a network node in the synchronization architecture.

Who uses SIST EN 300 462-2-1 V1.1.2:2003?

SIST EN 300 462-2-1 V1.1.2:2003 is used by telecom network engineers, transmission system designers, equipment manufacturers, test laboratories, quality managers and buyers. They use it when designing synchronization architectures, specifying clock performance, checking jitter and wander behavior, and evaluating timing equipment for SDH-based networks.

What does the SIST EN 300 462-2-1 V1.1.2:2003 document contain?

SIST EN 300 462-2-1 V1.1.2:2003 contains the foreword and the technical framing sections that establish scope, references, definitions and abbreviations, followed by the synchronization architecture content. The visible structure shows material on interfaces, synchronization links, node boundaries, node clocks and PRC-related timing recovery, which supports design and verification work.

The document also includes verification-oriented content and history information. For readers, that means it is meant to support both understanding and checking synchronization network behavior, not just naming the concepts involved.

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Transmission and Multiplexing (TM); Generic requirements for synchronization networks; Part 2-1: Synchronization network architecture33.040.20Prenosni sistemTransmission systemsICS:Ta slovenski standard je istoveten z:EN 300 462-2-1 Version 1.1.2SIST EN 300 462-2-1 V1.1.2:2003en01-december-2003SIST EN 300 462-2-1 V1.1.2:2003SLOVENSKI
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