SIST EN 300 417-3-1 V1.2.1:2003

• Abstract:

  Functional requirements for the regenerator section and multiplex sec tion layer of SDH interfaces on all types of equipment based on the ge neric principles described in part 1-1.

• 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 300 417-3-1 V1.2.1 (2001-10) - Transmission and Multiplexing (TM); Generic requirements of transport functionality of equipment; Part 3-1: Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions

SIST EN 300 417-3-1 V1.2.1:2003 is the SIST adoption of ETSI EN 300 417-3-1 for Transmission and Multiplexing (TM). It specifies the generic transport functionality for SDH equipment at the STM-N regenerator section and multiplex section layers, using the common principles in EN 300 417-1-1. It is intended for equipment designers, integrators, and test teams that need to describe, implement, or verify STM-N interface functions.

What does SIST EN 300 417-3-1 V1.2.1:2003 specify?

SIST EN 300 417-3-1 V1.2.1:2003 specifies a library of basic building blocks and combination rules for describing the transport functionality of equipment. A compliant equipment design must be describable as an interconnection of a subset of these functional blocks, and the interconnections must follow the document’s rules.

The standard is organized by STM level and by function type. Clauses 4 to 13 cover STM-1, STM-4, STM-16, STM-64, and STM-256 regenerator section and multiplex section layer functions, after the introductory clauses on scope, references, definitions, and symbols.

Annex	What it covers
Annex A	Generic specification of linear protection switching operation
Annex B	STM-16 regenerator functional model, as an example
Annex C	Void
Annex D	MS protection examples
Annex E	FEC for STM-16 Regenerator Section Layer

The generic functional processes and performance are defined in EN 300 417-1-1, which this part uses as its basis.

What are the key requirements of SIST EN 300 417-3-1 V1.2.1:2003?

SIST EN 300 417-3-1 V1.2.1:2003 defines the atomic functions needed to build STM-N transport equipment. The main practical point is that the standard tells you how to map signals into SDH frames, how to recover them, and how to report defects and protection status.

Regenerator section functions

Clauses 4, 6, 8, 10, and 12 define the regenerator section layer functions for STM-1, STM-4, STM-16, STM-64, and STM-256. The source functions build the STM-N signal by adding frame alignment, trace information, parity, and scrambling, while the sink functions recover the signal, descramble it, check parity, and detect defects such as dTIM. In practice, this is the part that makes the interface lock to the frame and prove that the received STM-N stream is healthy.

The regenerator section also carries and extracts overhead channels. These clauses include adaptation functions for DCC, P0s, and V0x, so the equipment can move management traffic, orderwire or user-channel traffic, and 64 kbit/s contradirectional data through the SDH overhead. For implementers, this means the overhead bytes are not incidental - they are part of the transport interface and must be mapped consistently.

Multiplex section functions

Clauses 5, 7, 9, 11, and 13 define the multiplex section layer functions. The source functions add multiplex section overhead such as B2 parity, M1 error reporting, and K2 defect/status information, and the sink functions monitor error performance and recover remote maintenance information. In practice, this is the layer used for MS error monitoring and for carrying protection and maintenance information between ends of the section.

These clauses also define adaptation to S4 family signals, including S4, S4-4c, S4-16c, S4-64c, and S4-256c where applicable. The source functions generate AU pointers and fixed-stuff patterns, and the sink functions interpret the pointers to recover the payload phase. That matters in operation because the receiver must track phase correctly or the carried VC-4 signal cannot be recovered reliably.

Protection and service access

The standard defines linear trail protection functions for 1+1 and 1:n arrangements, and it also includes 2 fibre shared protection ring functions for STM-16, STM-64, and STM-256. The protection channel uses K1 and K2, and the 1+1 protection processes state a switching time of up to 50 ms. In practice, this is the section you use when the network needs working and protection paths, plus the control logic to move traffic when a fault or exercise command appears.

For STM-16 and STM-256, the document also notes that more than one adaptation source can exist at the same access point, but only one source may access a given AU timeslot at a time. That is important during configuration: overlapping payload mappings must be controlled so two sources do not drive the same slot.

FEC support

The regenerator-to-multiplex adaptation for STM-16, STM-64, and STM-256 includes FEC-supporting variants. Annex E gives the STM-16 FEC example and shows how parity insertion is handled together with B2 compensation. In practice, this is relevant when the equipment is designed to support FEC rather than a plain transparent path.

What terms does SIST EN 300 417-3-1 V1.2.1:2003 define?

SIST EN 300 417-3-1 V1.2.1:2003 uses the common terminology from EN 300 417-1-1 and adds STM-layer-specific abbreviations.

• RS - Regenerator Section, the STM-N layer that handles frame alignment, trace, parity, and scrambling at the section level.
• MS - Multiplex Section, the layer above RS that carries multiplex section overhead and error monitoring.
• DCC - Data Communications Channel, the overhead channel used for management communication.
• P0s - The 64 kbit/s orderwire or user-channel path that is mapped into SDH overhead bytes such as E1, F1, or E2 depending on the layer.
• V0x - The 64 kbit/s contradirectional data layer used on the regenerator section.
• AIS - Alarm Indication Signal, the all-ONEs pattern used to indicate a defect or maintenance condition.
• BIP - Bit Interleaved Parity, the parity method used for B1 and B2 error monitoring.
• APS - Automatic Protection Switch, the protection signaling used by the linear protection functions.

Who uses SIST EN 300 417-3-1 V1.2.1:2003?

SIST EN 300 417-3-1 V1.2.1:2003 is used by equipment vendors, board designers, and system integrators who implement STM-N interfaces and need to map payload, overhead, and protection behavior. It is also used by test laboratories that verify frame alignment, parity checks, pointer handling, AIS behavior, and protection switching.

Network operators and planners use it when specifying SDH transport equipment, especially where DCC, orderwire, user channels, or protection architectures must be supported. Quality managers and buyers use it to confirm that a product can be described as a compliant interconnection of the functional blocks defined by the standard.

What changed in SIST EN 300 417-3-1 V1.2.1:2003 from the previous edition?

SIST EN 300 417-3-1 V1.2.1:2003 was converted from ETS 300 417 without technical changes, although some editorial changes were made.

• Parts 2-1 and 3-2 were updated to correct editorial errors from edition 1.
• Part 1-1 had its title changed to align with parts published later.
• Parts 8-1, 8-2, and 8-3 were stopped.

Which standards are used with SIST EN 300 417-3-1 V1.2.1:2003?

SIST EN 300 417-3-1 V1.2.1:2003 is used together with several referenced documents that supply the frame structure, base processes, and related interface details.

• EN 300 147 - Provides the SDH multiplexing structure and the byte locations used for STM-N frame mapping.
• EN 300 166 (1993) - Gives the physical and electrical characteristics of hierarchical digital interfaces used for the 64 kbit/s channel definitions.
• EN 300 417-1-1 - Supplies the generic processes and performance model, including the common functional principles, symbols, and protection concepts used throughout this part.
• EN 300 417-4-1 - Provides an example of pointer action for the AU-4-4c adaptation shown in the STM-4 and STM-16 sections.
• ETS 300 746 - Specifies the protection protocol and operation used for the 2 fibre MS SPRING functions.

What does the SIST EN 300 417-3-1 V1.2.1:2003 document contain?

SIST EN 300 417-3-1 V1.2.1:2003 contains atomic-function diagrams, signal tables, and detailed source/sink descriptions for each STM level. It shows how the regenerator section and multiplex section functions are built, how overhead bytes are used, and how adaptation, monitoring, and protection are carried out.

It also contains the procedures for B1 and B2 parity calculation, descrambling, pointer generation and interpretation, AIS handling, and defect reporting. The annexes add a normative linear protection switching specification, an STM-16 functional model example, MS protection examples, and an FEC example for the STM-16 regenerator section.

The document is therefore useful both for implementation work and for verification work, because it names the functional blocks, their interfaces, and the cases they must support.

SLOVENSKI STANDARD
01-december-2003
3UHQRVLQPXOWLSOHNVLUDQMH70±*HQHULþQH]DKWHYH]DSUHQRVQRIXQNFLRQDOQRVW
RSUHPH±GHO)XQNFLMHSODVWLUHJHQHUDWRUVNHJDLQPXOWLSOHNVQHJDRGVHND]D
VLQKURQLSUHQRVQLPRGXO16701
Transmission and Multiplexing (TM); Generic requirements of transport functionality of
equipment; Part 3-1: Synchronous Transport Module-N (STM-N) regenerator and
multiplex section layer functions
Ta slovenski standard je istoveten z: EN 300 417-3-1 Version 1.2.1
ICS:
33.040.20 Prenosni sistem Transmission systems
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

European Standard (Telecommunications series)

Transmission and Multiplexing (TM);
Generic requirements of transport functionality of equipment;
Part 3-1: Synchronous Transport Module-N (STM-N)
regenerator and multiplex section layer functions

2 ETSI EN 300 417-3-1 V1.2.1 (2001-10)

Reference
REN/TM-01042-3-1
Keywords
transmission, SDH, interface, architecture
ETSI
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© European Telecommunications Standards Institute 2001.
All rights reserved.
ETSI
3 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
Contents
Intellectual Property Rights.9
Foreword.9
1 Scope.11
2 References.11
3 Definitions, abbreviations and symbols .11
3.1 Definitions.11
3.2 Abbreviations.11
3.3 Symbols and Diagrammatic Conventions .14
3.4 Introduction.14
4 STM-1 Regenerator Section Layer Functions.14
4.1 STM-1 Regenerator Section Connection functions.15
4.2 STM-1 Regenerator Section Trail Termination functions.16
4.2.1 STM-1 Regenerator Section Trail Termination Source RS1_TT_So .16
4.2.2 STM-1 Regenerator Section Trail Termination Sink RS1_TT_Sk.17
4.3 STM-1 Regenerator Section Adaptation functions.19
4.3.1 STM-1 Regenerator Section to Multiplex Section Adaptation Source RS1/MS1_A_So .19
4.3.2 STM-1 Regenerator Section to Multiplex Section Adaptation Sink RS1/MS1_A_Sk .20
4.3.3 STM-1 Regenerator Section to DCC Adaptation Source RS1/DCC_A_So .21
4.3.4 STM-1 Regenerator Section to DCC Adaptation Sink RS1/DCC_A_Sk .22
4.3.5 STM-1 Regenerator Section to P0s Adaptation Source RS1/P0s_A_So/N .22
4.3.6 STM-1 Regenerator Section to P0s Adaptation Sink RS1/P0s_A_Sk/N .23
4.3.7 STM-1 Regenerator Section toV0x Adaptation Source RS1/V0x_A_So .24
4.3.8 STM-1 Regenerator Section to V0x Adaptation Sink RS1/V0x_A_Sk.25
5 STM-1 Multiplex Section Layer Functions.26
5.1 STM-1 Multiplex Section Connection functions.28
5.2 STM-1 Multiplex Section Trail Termination functions.28
5.2.1 STM-1 Multiplex Section Trail Termination Source MS1_TT_So .28
5.2.2 STM-1 Multiplex Section Trail Termination Sink MS1_TT_Sk.29
5.3 STM-1 Multiplex Section Adaptation functions .32
5.3.1 STM-1 Multiplex Section to S4 Layer Adaptation Source MS1/S4_A_So .32
5.3.2 STM-1 Multiplex Section to S4 Layer Adaptation Sink MS1/S4_A_Sk.34
5.3.3 STM-1 Multiplex Section to DCC Adaptation Source MS1/DCC_A_So .35
5.3.4 STM-1 Multiplex Section to DCC Adaptation Sink MS1/DCC_A_Sk.36
5.3.5 STM-1 Multiplex Section to P0s Adaptation Source MS1/P0s_A_So .36
5.3.6 STM-1 Multiplex Section to P0s Adaptation Sink MS1/P0s_A_Sk.37
5.3.7 STM-1 Multiplex Section to Synchronization Distribution Adaptation Source MS1/SD_A_So .38
5.3.8 STM-1 Multiplex Section to Synchronization Distribution Adaptation Sink MS1/SD_A_Sk .38
5.3.9 STM-1 Multiplex Section Layer Clock Adaptation Source MS1-LC_A_So.38
5.4 STM-1 Multiplex Section Layer Monitoring Functions.38
5.5 STM-1 Multiplex Section Linear Trail Protection Functions.39
5.5.1 STM-1 Multiplex Section Linear Trail Protection Connection Functions.39
5.5.1.1 STM-1 Multiplex Section 1+1 Linear Trail Protection Connection MS1P1+1_C.39
5.5.1.2 STM-1 Multiplex Section 1:n Linear Trail Protection Connection MS1P1:n_C .40
5.5.2 STM-1 Multiplex Section Linear Trail Protection Trail Termination Functions.42
5.5.2.1 Multiplex Section Protection Trail Termination Source MS1P_TT_So .42
5.5.2.2 Multiplex Section Protection Trail Termination Sink MS1P_TT_Sk .43
5.5.3 STM-1 Multiplex Section Linear Trail Protection Adaptation Functions.44
5.5.3.1 STM-1 Multiplex Section to STM-1 Multiplex Section Protection Layer Adaptation Source
MS1/MS1P_A_So.44
5.5.3.2 STM-1 Multiplex Section to STM-1 Multiplex Section Protection Layer Adaptation Sink
MS1/MS1P_A_Sk.45
6 STM-4 Regenerator Section Layer Functions.46
6.1 STM-4 Regenerator Section Connection functions.47
ETSI
4 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
6.2 STM-4 Regenerator Section Trail Termination functions.47
6.2.1 STM-4 Regenerator Section Trail Termination Source RS4_TT_So .47
6.2.2 STM-4 Regenerator Section Trail Termination Sink RS4_TT_Sk.49
6.3 STM-4 Regenerator Section Adaptation functions.51
6.3.1 STM-4 Regenerator Section to Multiplex Section Adaptation Source RS4/MS4_A_So .51
6.3.2 STM-4 Regenerator Section to Multiplex Section Adaptation Sink RS4/MS4_A_Sk .52
6.3.3 STM-4 Regenerator Section to DCC Adaptation Source RS4/DCC_A_So .53
6.3.4 STM-4 Regenerator Section to DCC Adaptation Sink RS4/DCC_A_Sk .53
6.3.5 STM-4 Regenerator Section to P0s Adaptation Source RS4/P0s_A_So/N .54
6.3.6 STM-4 Regenerator Section to P0s Adaptation Sink RS4/P0s_A_Sk/N .55
6.3.7 STM-4 Regenerator Section to V0x Adaptation Source RS4/V0x_A_So .56
6.3.8 STM-4 Regenerator Section to V0x Adaptation Sink RS4/V0x_A_Sk.57
7 STM-4 Multiplex Section Layer Functions.58
7.1 STM-4 Multiplex Section Connection functions.60
7.2 STM-4 Multiplex Section Trail Termination functions.61
7.2.1 STM-4 Multiplex Section Trail Termination Source MS4_TT_So .61
7.2.2 STM-4 Multiplex Section Trail Termination Sink MS4_TT_Sk.62
7.3 STM-4 Multiplex Section Adaptation functions .64
7.3.1 STM-4 Multiplex Section to S4 Layer Adaptation Source MS4/S4_A_So/(B,0).64
7.3.2 STM-4 Multiplex Section to S4 Layer Adaptation Sink MS4/S4_A_Sk/(B,0) .67
7.3.3 STM-4 Multiplex Section to S4-4c Layer Adaptation Source MS4/S4-4c_A_So.68
7.3.4 STM-4 Multiplex Section to S4-4c Layer Adaptation Sink MS4/S4-4c_A_Sk.70
7.3.5 STM-4 Multiplex Section to DCC Adaptation Source MS4/DCC_A_So .72
7.3.6 STM-4 Multiplex Section to DCC Adaptation Sink MS4/DCC_A_Sk.72
7.3.7 STM-4 Multiplex Section to P0s Adaptation Source MS4/P0s_A_So .73
7.3.8 STM-4 Multiplex Section to P0s Adaptation Sink MS4/P0s_A_Sk.74
7.3.9 STM-4 Multiplex Section to Synchronization Distribution Adaptation Source MS4/SD_A_So .75
7.3.10 STM-4 Multiplex Section to Synchronization Distribution Adaptation Sink MS4/SD_A_Sk .75
7.3.11 STM-4 Multiplex Section Layer Clock Adaptation Source MS4-LC_A_So.75
7.4 STM-4 Multiplex Section Layer Monitoring Functions.75
7.5 STM-4 Multiplex Section Linear Trail Protection Functions.75
7.5.1 STM-4 Multiplex Section Linear Trail Protection Connection Functions.75
7.5.1.1 STM-4 Multiplex Section 1+1 Linear Trail Protection Connection MS4P1+1_C.75
7.5.1.2 STM-4 Multiplex Section 1:n Linear Trail Protection Connection MS4P1:n_C .77
7.5.2 STM-4 Multiplex Section Linear Trail Protection Trail Termination Functions.78
7.5.2.1 Multiplex Section Protection Trail Termination Source MS4P_TT_So .78
7.5.2.2 Multiplex Section Protection Trail Termination Sink MS4P_TT_Sk .79
7.5.3 STM-4 Multiplex Section Linear Trail Protection Adaptation Functions.80
7.5.3.1 STM-4 Multiplex Section to STM-4 Multiplex Section Protection Layer Adaptation Source
MS4/MS4P_A_So.80
7.5.3.2 STM-4 Multiplex Section to STM-4 Multiplex Section Protection Layer Adaptation Sink
MS4/MS4P_A_Sk.81
8 STM-16 Regenerator Section Layer Functions.82
8.1 STM-16 Regenerator Section Connection functions.83
8.2 STM-16 Regenerator Section Trail Termination functions.83
8.2.1 STM-16 Regenerator Section Trail Termination Source RS16_TT_So .83
8.2.2 STM-16 Regenerator Section Trail Termination Sink RS16_TT_Sk .85
8.3 STM-16 Regenerator Section Adaptation functions.87
8.3.1 STM-16 Regenerator Section to Multiplex Section Adaptation Source RS16/MS16_A_So.87
8.3.2 STM-16 Regenerator Section to Multiplex Section Adaptation Sink RS16/MS16_A_Sk .88
8.3.3 STM-16 Regenerator Section to DCC Adaptation Source RS16/DCC_A_So .88
8.3.4 STM-16 Regenerator Section to DCC Adaptation Sink RS16/DCC_A_Sk .89
8.3.5 STM-16 Regenerator Section to P0s Adaptation Source RS16/P0s_A_So/N .90
8.3.6 STM-16 Regenerator Section to P0s Adaptation Sink RS16/P0s_A_Sk/N .91
8.3.7 STM-16 Regenerator Section to V0x Adaptation Source RS16/V0x_A_So .92
8.3.8 STM-16 Regenerator Section to V0x Adaptation Sink RS16/V0x_A_Sk.92
9 STM-16 Multiplex Section Layer Functions.93
9.1 STM-16 Multiplex Section Connection functions.98
9.2 STM-16 Multiplex Section Trail Termination functions.98
9.2.1 STM-16 Multiplex Section Trail Termination Source MS16_TT_So .98
ETSI
5 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
9.2.2 STM-16 Multiplex Section Trail Termination Sink MS16_TT_Sk.99
9.3 STM-16 Multiplex Section Adaptation functions .101
9.3.1 STM-16 Multiplex Section to S4 Layer Adaptation Source MS16/S4_A_So/(C,B,0).101
9.3.2 STM-16 Multiplex Section to S4 Layer Adaptation Sink MS16/S4_A_Sk/(C,B,0).103
9.3.3 STM-16 Multiplex Section to S4-4c Layer Adaptation Source MS16/S4-4c_A_So/(C,0,0).104
9.3.4 STM-16 Multiplex Section to S4-4c Layer Adaptation Sink MS16/S4-4c_A_Sk/(C,0,0) .107
9.3.5 STM-16 Multiplex Section to S4-16c Layer Adaptation Source MS16/S4-16c_A_So.108
9.3.6 STM-16 Multiplex Section to S4-16c Layer Adaptation Sink MS16/S4-16c_A_Sk.110
9.3.7 STM-16 Multiplex Section to DCC Adaptation Source MS16/DCC_A_So .112
9.3.8 STM-16 Multiplex Section to DCC Adaptation Sink MS16/DCC_A_Sk .112
9.3.9 STM-16 Multiplex Section to P0s Adaptation Source MS16/P0s_A_So .113
9.3.10 STM-16 Multiplex Section to P0s Adaptation Sink MS16/P0s_A_Sk.114
9.3.11 STM-16 Multiplex Section to Synchronization Distribution Adaptation Source MS16/SD_A_So .115
9.3.12 STM-16 Multiplex Section to Synchronization Distribution Adaptation Sink MS16/SD_A_Sk .115
9.3.13 STM-16 Multiplex Section Layer Clock Adaptation Source MS16-LC_A_So.115
9.4 STM-16 Multiplex Section Layer Monitoring Functions.115
9.5 STM-16 Multiplex Section Linear Trail Protection Functions.115
9.5.1 STM-16 Multiplex Section Linear Trail Protection Connection Functions.115
9.5.1.1 STM-16 Multiplex Section 1+1 Linear Trail Protection Connection MS16P1+1_C.115
9.5.1.2 STM-16 Multiplex Section 1:n Linear Trail Protection Connection MS16P1:n_C .117
9.5.2 STM-16 Multiplex Section Linear Trail Protection Trail Termination Functions.119
9.5.2.1 Multiplex Section Protection Trail Termination Source MS16P_TT_So .119
9.5.2.2 Multiplex Section Protection Trail Termination Sink MS16P_TT_Sk .120
9.5.3 STM-16 Multiplex Section Linear Trail Protection Adaptation Functions.121
9.5.3.1 STM-16 Multiplex Section to STM-16 Multiplex Section Protection Layer Adaptation Source
MS16/MS16P_A_So.121
9.5.3.2 STM-16 Multiplex Section to STM-16 Multiplex Section Protection Layer Adaptation Sink
MS16/MS16P_A_Sk.122
9.6 STM-16 Multiplex Section 2 Fibre Shared Protection Ring Functions.122
9.6.1 STM-16 Multiplex Section 2 Fibre Shared Protection Ring Connection MS16P2fsh_C .123
9.6.2 STM-16 Multiplex Section 2 Fibre Shared Protection Ring Trail Termination Functions.127
9.6.2.1 STM-16 Multiplex Section 2 Fibre Shared Protection Ring Trail Termination Source
MS16P2fsh_TT_So.127
9.6.2.2 STM-16 Multiplex Section 2 Fibre Shared Protection Ring Trail Termination Sink
MS16P2fsh_TT_Sk.128
9.6.3 STM-16 Multiplex Section 2 Fibre Shared Protection Ring Adaptation Functions.129
9.6.3.1 STM-16 Multiplex Section to STM-16 Multiplex Section 2 Fibre Shared Protection Ring
Adaptation Source MS16/MS16P2fsh_A_So .129
9.6.3.2 STM-16 Multiplex Section to STM-16 Multiplex Section 2 Fibre Shared Protection Ring
Adaptation Sink MS16/MS16P2fsh_A_Sk .130
10 STM-64 Regenerator Section layer functions .131
10.1 STM-64 Regenerator Section Connection functions.132
10.2 STM-64 Regenerator Section Trail Termination functions.132
10.2.1 STM-64 Regenerator Section Trail Termination Source RS64_TT_So .132
10.2.2 STM-64 Regenerator Section Trail Termination Sink RS64_TT_Sk.134
10.3 STM-64 Regenerator Section Adaptation functions.136
10.3.1 STM-64 Regenerator Section to Multiplex Section Adaptation Source RS64/MS64_A_So.136
10.3.2 STM-64 Regenerator Section to Multiplex Section Adaptation Sink RS64/MS64_A_Sk .137
10.3.3 STM-64 Regenerator Section to DCC Adaptation Source RS64/DCC_A_So .137
10.3.4 STM-64 Regenerator Section to DCC Adaptation Sink RS64/DCC_A_Sk .138
10.3.5 STM-64 Regenerator Section to P0s Adaptation Source RS64/P0s_A_So/N .139
10.3.6 STM-64 Regenerator Section to P0s Adaptation Sink RS64/P0s_A_Sk/N .140
10.3.7 STM-64 Regenerator Section to V0x Adaptation Source RS64/V0x_A_So .141
10.3.8 STM-64 Regenerator Section to V0x Adaptation Sink RS64/V0x_A_Sk.141
10.3.9 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation supporting FEC.142
10.3.9.1 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation FEC transparent .142
10.3.9.1.1 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation FEC transparent
Source Function RS64/MSF64_A _So.142
10.3.9.1.2 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation FEC transparent Sink
Function RS64/MSF64_A _Sk.143
10.3.9.2 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation FEC generation .144
ETSI
6 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
10.3.9.2.1 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation FEC generation
Source Function RS64/MS64-fec_A _So.144
10.3.9.2.2 STM-64 Regenerator Section to STM-64 Multiplex Section Adaptation FEC generation Sink
Function RS64/MS64-fec_A _Sk.146
11 STM-64 Multiplex Section layer functions.148
11.1 STM-64 Multiplex Section Connection functions.151
11.2 STM-64 Multiplex Section Trail Termination functions.151
11.2.1 STM-64 Multiplex Section Trail Termination Source MS64_TT_So .151
11.2.2 STM-64 Multiplex Section Trail Termination Sink MS64_TT_Sk.152
11.3 STM-64 Multiplex Section Adaptation functions .155
11.3.1 STM-64 Multiplex Section to S4 Layer Adaptation Source MS64/S4_A_So/(D,C,B,0) .155
11.3.2 STM-64 Multiplex Section to S4 Layer Adaptation Sink MS64/S4_A_Sk/(D,C,B,0).157
11.3.3 STM-64 Multiplex Section to S4-4c Layer Adaptation Source MS64/S4-4c_A_So/(D,C,0,0).158
11.3.4 STM-64 Multiplex Section to S4-4c Layer Adaptation Sink MS64/S4-4c_A_Sk/(D,C,0,0) .161
11.3.5 STM-64 Multiplex Section to S4-16c Layer Adaptation Source MS64/S4-16c_A_So/(D,0,0,0) .162
11.3.6 STM-64 Multiplex Section to S4-16c Layer Adaptation Sink MS64/S4-16c_A_Sk/(D,0,0,0) .165
11.3.7 STM-64 Multiplex Section to S4-64c Layer Adaptation Source MS64/S4-64c_A_So.166
11.3.8 STM-64 Multiplex Section to S4-64c Layer Adaptation Sink MS64/S4-64c_A_Sk.168
11.3.9 STM-64 Multiplex Section to DCC Adaptation Source MS64/DCC_A_So .170
11.3.10 STM-64 Multiplex Section to DCC Adaptation Sink MS64/DCC_A_Sk .170
11.3.11 STM-64 Multiplex Section to P0s Adaptation Source MS64/P0s_A_So .171
11.3.12 STM-64 Multiplex Section to P0s Adaptation Sink MS64/P0s_A_Sk.172
11.3.13 STM-64 Multiplex Section to Synchronization Distribution Adaptation Source MS64/SD_A_So .173
11.3.14 STM-64 Multiplex Section to Synchronization Distribution Adaptation Sink MS64/SD_A_Sk .173
11.3.15 STM-64 Multiplex Section Layer Clock Adaptation Source MS64-LC_A_So.173
11.4 STM-64 Multiplex Section Layer Monitoring Functions.173
11.5 STM-64 Multiplex Section Linear Trail Protection Functions.173
11.5.1 STM-64 Multiplex Section Linear Trail Protection Connection Functions.173
11.5.1.1 STM-64 Multiplex Section 1+1 Linear Trail Protection Connection MS64P1+1_C.173
11.5.1.2 STM-64 Multiplex Section 1:n Linear Trail Protection Connection MS64P1:n_C .175
11.5.2 STM-64 Multiplex Section Linear Trail Protection Trail Termination Functions.176
11.5.2.1 Multiplex Section Protection Trail Termination Source MS64P_TT_So .176
11.5.2.2 Multiplex Section Protection Trail Termination Sink MS64P_TT_Sk .177
11.5.3 STM-64 Multiplex Section Linear Trail Protection Adaptation Functions.178
11.5.3.1 STM-64 Multiplex Section to STM-64 Multiplex Section Protection Layer Adaptation Source
MS64/MS64P_A_So.178
11.5.3.2 STM-64 Multiplex Section to STM-64 Multiplex Section Protection Layer Adaptation Sink
MS64/MS64P_A_Sk.179
11.6 STM-64 Multiplex Section 2 Fibre Shared Protection Ring Functions.179
12 STM-256 Regenerator Section layer functions .180
12.1 STM-256 Regenerator Section Connection functions.181
12.2 STM-256 Regenerator Section Trail Termination functions.181
12.2.1 STM-256 Regenerator Section Trail Termination Source RS256_TT_So .181
12.2.2 STM-256 Regenerator Section Trail Termination Sink RS256_TT_Sk.183
12.3 STM-256 Regenerator Section Adaptation functions.185
12.3.1 STM-256 Regenerator Section to Multiplex Section Adaptation Source RS256/MS256_A_So.185
12.3.2 STM-256 Regenerator Section to Multiplex Section Adaptation Sink RS256/MS256_A_Sk .186
12.3.3 STM-256 Regenerator Section to DCC Adaptation Source RS256/DCC_A_So .187
12.3.4 STM-256 Regenerator Section to DCC Adaptation Sink RS256/DCC_A_Sk .187
12.3.5 STM-256 Regenerator Section to P0s Adaptation Source RS256/P0s_A_So/N .188
12.3.6 STM-256 Regenerator Section to P0s Adaptation Sink RS256/P0s_A_Sk/N .189
12.3.7 STM-256 Regenerator Section to V0x Adaptation Source RS256/V0x_A_So .190
12.3.8 STM-256 Regenerator Section to V0x Adaptation Sink RS256/V0x_A_Sk.191
12.3.9 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation supporting FEC.192
12.3.9.1 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation FEC transparent .192
12.3.9.1.1 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation FEC transparent
Source Function RS256/MSF256_A _So.192
12.3.9.1.2 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation FEC transparent
Sink Function RS256/MSF256_A _Sk.193
12.3.9.2 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation FEC generation .194
ETSI
7 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
12.3.9.2.1 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation FEC generation
Source Function RS256/MS256-fec_A _So .194
12.3.9.2.2 STM-256 Regenerator Section to STM-256 Multiplex Section Adaptation FEC generation
Sink Function RS256/MS256-fec_A _Sk.196
13 STM-256 Multiplex Section layer functions.198
13.1 STM-256 Multiplex Section Connection functions.201
13.2 STM-256 Multiplex Section Trail Termination functions.201
13.2.1 STM-256 Multiplex Section Trail Termination Source MS256_TT_So .201
13.2.2 STM-256 Multiplex Section Trail Termination Sink MS256_TT_Sk.202
13.3 STM-256 Multiplex Section Adaptation functions .205
13.3.1 STM-256 Multiplex Section to S4 Layer Adaptation Source MS256/S4_A_So/(E,D,C,B,0).205
13.3.2 STM-256 Multiplex Section to S4 Layer Adaptation Sink MS256/S4_A_Sk/(E,D,C,B,0).207
13.3.3 STM-256 Multiplex Section to S4-4c Layer Adaptation Source MS256/S4-4c_A_So/(E,D,C,0,0) .208
13.3.4 STM-256 Multiplex Section to S4-4c Layer Adaptation Sink MS256/S4-4c_A_Sk/(E,D,C,0,0).211
13.3.5 STM-256 Multiplex Section to S4-16c Layer Adaptation Source MS256/S4-16c_A_So/(E,D,0,0,0).212
13.3.6 STM-256 Multiplex Section to S4-16c Layer Adaptation Sink MS256/S4-16c_A_Sk/(E,D,0,0,0).215
13.3.7 STM-256 Multiplex Section to S4-64c Layer Adaptation Source MS256/S4-64c_A_So/(E,0,0,0,0).216
13.3.8 STM-256 Multiplex Section to S4-64c Layer Adaptation Sink MS256/S4-64c_A_Sk/(E,0,0,0,0).219
13.3.9 STM-256 Multiplex Section to S4-256c Layer Adaptation Source MS256/S4-256c_A_So.220
13.3.10 STM-256 Multiplex Section to S4-256c Layer Adaptation Sink MS256/S4-256c_A_Sk.222
13.3.11 STM-256 Multiplex Section to DCC Adaptation Source MS256/DCC_A_So .224
13.3.12 STM-256 Multiplex Section to DCC Adaptation Sink MS256/DCC_A_Sk .224
13.3.13 STM-256 Multiplex Section to Extended DCC Adaptation Source MS256/XDCC_A_So.225
13.3.14 STM-256 Multiplex Section to Extended DCC Adaptation Sink MS256/XDCC_A_Sk .226
13.3.15 STM-256 Multiplex Section to P0s Adaptation Source MS256/P0s_A_So .227
13.3.16 STM-256 Multiplex Section to P0s Adaptation Sink MS256/P0s_A_Sk.228
13.3.17 STM-256 Multiplex Section to Synchronization Distribution Adaptation Source MS256/SD_A_So .228
13.3.18 STM-256 Multiplex Section to Synchronization Distribution Adaptation Sink MS256/SD_A_Sk .229
13.3.19 STM-256 Multiplex Section Layer Clock Adaptation Source MS256-LC_A_So.229
13.4 STM-256 Multiplex Section Layer Monitoring Functions.229
13.5 STM-256 Multiplex Section Linear Trail Protection Functions.229
13.5.1 STM-256 Multiplex Section Linear Trail Protection Connection Functions.229
13.5.1.1 STM-256 Multiplex Section 1+1 Linear Trail Protection Connection MS256P1+1_C.229
13.5.1.2 STM-256 Multiplex Section 1:n Linear Trail Protection Connection MS256P1:n_C .231
13.5.2 STM-256 Multiplex Section Linear Trail Protection Trail Termination Functions.233
13.5.2.1 Multiplex Section Protection Trail Termination Source MS256P_TT_So .233
13.5.2.2 Multiplex Section Protection Trail Termination Sink MS256P_TT_Sk .234
13.5.3 STM-256 Multiplex Section Linear Trail Protection Adaptation Functions.235
13.5.3.1 STM-256 Multiplex Section to STM-256 Multiplex Section Protection Layer Adaptation Source
MS256/MS256P_A_So.235
13.5.3.2 STM-256 Multiplex Section to STM-256 Multiplex Section Protection Layer Adaptation Sink
MS256/MS256P_A_Sk.236
13.6 STM-256 Multiplex Section 2 Fibre Shared Protection Ring Functions.236
Annex A (normative): Generic specification of linear protection switching operation .237
Annex B (informative): STM-16 regenerator functional model (example).238
Annex C (informative): Void .239
Annex D (informative): MS protection examples .240
Annex E (informative): FEC for STM-16 Regenerator Section Layer .242
E.1 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation supporting FEC.242
E.1.1 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation FEC transparent .242
E.1.1.1 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation FEC transparent Source
Function RS16/MSF16_A _So .242
E.1.1.2 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation FEC transparent Sink
Function RS16/MSF16_A _Sk .243
E.1.2 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation FEC generation .244
ETSI
8 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
E.1.2.1 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation FEC generation Source
Function RS16/MS16-fec_A _So .244
E.1.2.2 STM-16 Regenerator Section to STM-16 Multiplex Section Adaptation FEC generation Sink
Function RS16/MS16-fec_A _Sk .246
Annex F (informative): Bibliography.248
History .249

ETSI
9 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
Intellectual Property Rights
IPRs essential or potentially essential to the present document may have been declared to ETSI. The information
pertaining to these essential IPRs, if any, is publicly available for ETSI members and non-members, and can be found
in ETSI SR 000 314: "Intellectual Property Rights (IPRs); Essential, or potentially Essential, IPRs notified to ETSI in
respect of ETSI standards", which is available from the ETSI Secretariat. Latest updates are available on the ETSI Web
server (http://www.etsi.org/legal/home.htm).
Pursuant to the ETSI IPR Policy, no investigation, including IPR searches, has been carried out by ETSI. No guarantee
can be given as to the existence of other IPRs not referenced in ETSI SR 000 314 (or the updates on the ETSI Web
server) which are, or may be, or may become, essential to the present document.
Foreword
This European Standard (Telecommunications series) has been produced by ETSI Technical Committee Transmission
and Multiplexing (TM).
The present document is one of a family of documents that has been produced in order to provide inter-vendor and
inter-operator compatibility of Synchronous Digital Hierarchy (SDH) equipment.
The present document is part 3, sub-part 1 of a multi-part deliverable covering the Generic requirements of transport
functionality of equipment, as identified below:
Part 1-1: "Generic processes and performance";
Part 1-2: "General information about Implementation Conformance Statement (ICS) proforma";
Part 2-1: "Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) physical section
layer functions";
Part 2-2: "Synchronous Digital Hierarchy (SDH) and Plesiochronous Digital Hierarchy (PDH) physical section
layer functions; Implementation Conformance Statement (ICS) proforma specification";
Part 3-1: "Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions";
Part 3-2: "Synchronous Transport Module-N (STM-N) regenerator and multiplex section layer functions;
Implementation Conformance Statement (ICS) proforma specification";
Part 4-1: "Synchronous Digital Hierarchy (SDH) path layer functions";
Part 4-2: "Synchronous Digital Hierarchy (SDH) path layer functions; Implementation Conformance Statement
(ICS) proforma specification";
Part 5-1: "Plesiochronous Digital Hierarchy (PDH) path layer functions";
Part 5-2: "Plesiochronous Digital Hierarchy (PDH) path layer functions; Implementation Conformance Statement
(ICS) proforma specification";
Part 6-1: "Synchronization layer functions";
Part 6-2: "Synchronization layer functions; Implementation Conformance Statement (ICS) proforma specification";
Part 7-1: "Equipment management and auxiliary layer functions";
Part 9-1: "Synchronous Digital Hierarchy (SDH) concatenated path layer functions; Requirements".
Parts 2 to 7 specify the layers and their atomic functions.
Parts 2 to 7 specify the layers and their atomic functions.
NOTE: The SDH radio equipment functional blocks are addressed by ETSI WG TM4.
ETSI
10 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
Various of the above parts have previously been published as parts of ETS 300 417.
They have been converted to parts of EN 300 417 without technical changes, but some editorial changes have been
necessary (e.g. references). In particular:
- Parts 2-1 and 3-2 have been modified to take account of editorial errors present in edition 1.
- Part 1-1 has had its title change of to align with other parts published at a later date.
Also note that in the meantime parts 8-1, 8-2 and 8-3 have been stopped.

National transposition dates
Date of adoption of this EN: 12 October 2001
Date of latest announcement of this EN (doa): 31 January 2002
Date of latest publication of new National Standard
or endorsement of this EN (dop/e): 31 July 2002
Date of withdrawal of any conflicting National Standard (dow): 31 July 2002

ETSI
11 ETSI EN 300 417-3-1 V1.2.1 (2001-10)
1 Scope
The present document specifies a library of basic building blocks and a set of rules by which they are combined in order
to describe transport functionality of equipment. The library comprises the functional building blocks needed to
completely specify the generic functional structure of the European Transmission Hierarchies. Equipment which is
compliant with the present doc
...