ISO/IEC 9314-4:1999
(Main)Information technology — Fibre Distributed Data Interface (FDDI) — Part 4: Single Mode Fibre Physical Layer Medium Dependent (SMF-PMD)
Information technology — Fibre Distributed Data Interface (FDDI) — Part 4: Single Mode Fibre Physical Layer Medium Dependent (SMF-PMD)
This part of ISO/IEC 9314 specifies the Single-mode fibre Physical Layer Medium Dependent (SMF-PMD) requirements for the Fibre Distributed Data Interface (FDDI). FDDI provides a high bandwidth (100 megabits per second) general purpose interconnection among computers and peripheral equipment using a fibre optic waveguide as the transmission medium. The FDDI may be configured to support a sustained transfer rate of approximately 80 megabits (10 megabytes) per second. The FDDI may not meet the response time requirements of all unbuffered high speed devices. The FDDI establishes the connection among many stations distributed over distances of several kilometers in extent. Default values for FDDI were calculated on the basis of 1000 physical connections and a total fibre path length of 200 kilometers (see the MAC Standard – ISO/IEC 9314-2 or ISO/IEC 9314-8). The FDDI consists of: 1) The Physical Layer Medium Dependent (PMD) is specified in four alternative standards: a) ISO/IEC 9314-3 (FDDI PMD) corresponding to multimode fibre (MMF) which actually means "FDDI MMF-PMD". b) This standard ISO/IEC 9314-4 (SMF-PMD) which contains the requirements for singlemode fibre (SMF) physical connections between stations. c) ISO/IEC 9314-9 (FDDI LCF-PMD), an alternative lower cost multimode fibre (LCF) for shorter distances. d) ISO/IEC 9314-10 (FDDI TP-PMD), a copper twisted pair (TP) alternative. An FDDI ring can be made up of all these alternatives. (For some restrictions see 6.4). The PMD provides all services necessary to transport a suitably coded digital bit stream from station to station. The SMF-PMD specifies the point of interconnection requirements for FDDI stations and cable plants at both sides of the Media Interface Connector (MIC) for conforming stations utilizing single-mode fibre. SMF-PMD includes the following: i) The optical power budgets for two (2) categories of Active Output and Active Input Interfaces using single-mode fibre optic cables and optical bypass switches ii) The MIC Receptacle mechanical mating requirements including the keying features iii) The single-mode fibre optic cable requirements iv) The services provided by PMD to PHY and SMT 2) A Physical Layer Protocol (PHY), which provides connection between multimode or singlemode PMD and the Data Link Layer (DLL). PHY establishes clock synchronization with the upstream code-bit data stream and decodes this incoming code-bit stream into an equivalent symbol stream for use by the higher layers. PHY provides encoding and decoding between data and control indicator symbols and code-bits, medium conditioning and initializing, the synchronization of incoming and outgoing code-bit clocks, and the delineation of octet boundaries as required for the transmission of information to or from higher layers. Information to be transmitted on the interface medium is encoded by the PHY into a grouped transmission code. 3) A Data Link Layer (DLL), which controls the accessing of the medium and the generation and verification of frame check sequences to assure the proper delivery of valid data to the – 8 – 9314-4 © ISO/IEC:1999(E) higher layers. DLL also concerns itself with the generation and recognition of device addresses and the peer-to-peer associations within the FDDI network. For purpose of the PHY, references to DLL are made in terms of the Media Access Control (MAC) entity, which is the lowest sublayer of DLL. 4) A Station Management (SMT), which provides the control necessary at the station level to manage the processes underway in the various FDDI layers such that a station may work cooperatively on a ring. SMT provides services such as control of configuration management, fault isolation and recovery, and scheduling procedures. This part of ISO/IEC 9314 is a supporting document to ISO/IEC 9314-1 which should be read in conjunction with it. The SMT document ISO/IEC 9314-6 should be consulted for information pertaining to supported FDDI station and network configurati
Technologies de l'information — Interface de données distribuées sur fibre (FDDI) — Partie 4: Couche physique de fibre à mode unique dépendante du milieu (SMF-PMD)
General Information
Standards Content (Sample)
INTERNATIONAL
ISO/IEC
STANDARD
9314-4
First edition
1999-10
Information technology –
Fibre distributed data interface (FDDI) –
Part 4:
Single-mode fibre physical layer
medium dependent (SMF-PMD)
Reference number
INTERNATIONAL
ISO/IEC
STANDARD
9314-4
First edition
1999-10
Information technology –
Fibre distributed data interface (FDDI) –
Part 4:
Single-mode fibre physical layer
medium dependent (SMF-PMD)
ISO/IEC 1999
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– 2 – 9314-4 © ISO/IEC:1999(E)
CONTENTS
Page
FOREWORD . 4
INTRODUCTION .5
Clause
1 Scope . 7
2 Normative references . 8
3 Concepts . 9
3.1 General Description . 9
3.2 Environment. 10
3.2.1 Data Center Environment . 10
3.2.2 Office/Building Environment . 10
3.2.3 Campus Environment . 10
3.2.4 Multi-campus Environment . 11
3.3 Definitions. 11
3.4 Acronyms. 14
3.5 Conventions. 15
4 Services. 18
4.1 General Description . 18
4.2 PMD-to-PHY Services . 18
4.2.1 PM_UNITDATA.request. 19
4.2.2 PM_UNITDATA.indication. 19
4.2.3 PM_SIGNAL.indication . 20
4.3 PMD-to-SMT Services. 20
4.3.1 SM_PM_CONTROL.request . 21
4.3.2 SM_PM_BYPASS.request . 21
4.3.3 SM_PM_SIGNAL.indication . 22
5 Media Attachment . 24
5.1 General. 24
5.2 Media Interface Connector . 24
5.2.1 Keying Detail. 26
6 Media Signal Interface. 27
6.1 General Description . 27
6.2 Active Output Interface. 28
6.2.1 Characteristics . 28
6.2.2 Pulse Envelope Test. 28
6.3 Active Input Interface . 31
6.4 Station Bypass Interface. 31
6.4.1 Characteristics . 31
6.4.2 Station Bypass Timing Definitions. 33
7 Interface Signals . 33
7.1 General Description . 33
7.2 Optical Receiver. 33
7.2.1 Signal_Detect. 34
7.3 Optical Transmitter. 35
9314-4 © ISO/IEC:1999(E) – 3 –
Clause Page
8 Cable Plant Interface Specification . 36
8.1 Cable Plant Specification. 36
8.1.1 Cable Plant Attenuation . 36
8.1.2 Fibre, Optical . 37
8.1.3 Fibre, Dimensions . 37
8.1.4 Fixed Attenuation . 37
8.2 Bypassing . 37
8.3 Connectors and Splices. 37
8.3.1 Optical Return Loss. 37
Annex A (informative) Test Methods . 38
Annex B (informative) Cable Plant Usage . 43
Annex C (informative) Electrical Interface Specifications. 46
Annex D (informative) System Jitter Allocations . 49
Annex E (informative) Keying Considerations. 51
Table 1 – Characteristics of Category I and II Active Output Interfaces.28
Table 2 – Characteristics of Category I and II Active Input Interface Signals .31
Table 3 – Characteristics of Category I Optical Bypass Implementations .31
Table 4 – Summary of Clause 7 .35
Table 5 – Active Input/Output Interface Combinations .36
Table 6 – Fibre Optical Parameters.37
Table 7 – Fibre Dimensions .37
Figure 1 – FDDI Links and Connections .16
Figure 2 – FDDI Topology Example.17
Figure 3 – Dual Attachment PMD Services.23
Figure 4 – Example of Media Interface Connector (MIC) Plug.25
Figure 5 – SMF-MIC Keying Details (Wavelength Option 1) .26
Figure 6 – Category I Pulse Envelope Test.29
Figure 7 – Category II Pulse Envelope Test.30
Figure 8 – Station Bypass Timing Characteristics.32
Figure 9 – Signal Detect Thresholds and Timing .34
– 4 – 9314-4 © ISO/IEC:1999(E)
FOREWORD
ISO (the International Organization for Standardization) and IEC (the International Electro-
technical Commission) form the specialized system for worldwide standardization. National
bodies that are members of ISO or IEC participate in the development of International
Standards through technical committees established by the respective organization to deal with
particular fields of technical activity. ISO and IEC technical committees collaborate in fields of
mutual interest. Other international organizations, governmental and non-governmental, in
liaison with ISO and IEC, also take part in the work.
In the field of information technology, ISO and IEC have established a joint technical
committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical com-
mittee are circulated to national bodies for voting. Publication as an International Standard
requires approval by at least 75% of the national bodies casting a vote.
International Standard ISO/IEC 9314-4 was prepared by Joint technical Committee ISO/IEC
JTC 1 Information technology, Subcommittee SC 25, Interconnection of information technology
equipment.
ISO/IEC 9314 consists of the following parts, under the general title Information technology –
Fibre Distributed Data Interface (FDDI):
– Part 1: Token Ring Physical Layer Protocol (PHY)
– Part 2: Token Ring Media Access Control (MAC)
– Part 3: Token Ring Physical Medium Dependent Layer (PMD)
– Part 4: Single Mode Fibre Physical Layer Medium Dependent (SMF-PMD)
– Part 5: Hybrid Ring Control (HRC)
– Part 6: Token Ring Station Management (SMT)
– Part 7: Physical Layer Protocol (PHY-2)
– Part 8: Token Ring Media Access Control-2 (MAC-2)
– Part 9: FDDI Low-Cost Fibre – Physical Medium Dependent (LCF-PMD)
– Part 10: Token Ring Twisted Pair Physical layer Medium Dependent (TP-PMD)
– Part 13: Conformance Test Protocol Implementation
Conformance Statement proforma (CT-PICS)
– Part 20: Physical Medium Dependent Conformance Testing (PMD-ATS)
– Part 21: Physical Layer Protocol Conformance Testing (PHY-ATS)
– Part 25: Abstract Test Suite for FDDI – Station Management
Conformance Testing (SMT-ATS)
– Part 26: Media Access Control Conformance Testing (MAC-ATS)
9314-4 © ISO/IEC:1999(E) – 5 –
INTRODUCTION
The Fibre Distributed Data Interface (FDDI) is intended for use in a high-performance general
purpose multistation network and is designed for efficient operation with a peak data rate of
100 megabits per second. It uses a token ring architecture. This part of ISO/IEC 9314 extends
the basic FDDI by allowing both multimode and single-mode fibre, (MMF and SMF
respectively), as transmission media. The basic FDDI provides for hundreds of stations
operating over an extent of many kilometers. The individual link lengths supported by the basic
FDDI are limited to two (2) kilometers by the characteristics of the multimode fibre it specifies.
This extension to the basic FDDI standard allows links to about 60 kilometers depending on
cable plant characteristics, by making it possible to include single-mode fibre links in a
standard FDDI network.
The Single-mode Physical Layer Medium Dependent (SMF-PMD) specifies the lower sublayer
of the Physical Layer for the FDDI. As such, it presents the specifications for conforming FDDI
attachment devices at the interface to the single-mode optical network. This includes power
levels and characteristics of the optical transmitter and receiver, interface optical signal
requirements including jitter, the connector receptacle footprint, the requirements of
conforming FDDI single-mode fibre cable plants, and the permissible BER.
SMF-PMD provides for extension of the set of basic standards for FDDI that includes the
following standards:
a) A Media Access Control (MAC) standard, which specifies the lower sublayer of the Data
Link Layer for FDDI, including access to the medium, data framing, addressing, and data
checking;
b) A Physical Medium Dependent (PMD) standard which is the alternative standard to this
document, when using MMF rather than SMF;
c) A Physical Layer Protocol (PHY) standard, which specifies the upper sublayer of the
Physical Layer for FDDI, including encode/decode, clocking, and data framing;
d) A Station Management (SMT) standard, which specifies the local portion of the system
management application process for FDDI, including the control required for proper
operation of a station in an FDDI ring;
The idea of developing a new high speed data interface for computers based on the use of
optical fibre was first raised in an October 1982 meeting. An ad hoc task group was formed to
examine the issues and three project proposals, for the FDDI Physical, Data Link, and Network
layers were developed and subsequently approved.
Initial proposals for the Media Access Control (MAC), corresponding to the lower half of the
Data Link Layer, and for the Physical (PHY), corresponding to the Physical Layer, were both
submitted in June 1983. FDDI adopted the structures of the ISO/IEC 8802 Series, and early
work indicated that the FDDI MAC could be developed to operate under the Logical Link
Control (LLC) described in the ISO/IEC 8802 series. This decision, in effect, obviated the
developme
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