1、Optical amplifiers Part 6-1: Interfaces Command setBS EN 61291-6-1:2008raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI British StandardsNational forewordThis British Standard is the UK implementation of EN 61291-6-1:2008. It isidentical to IEC 612
2、91-6-1:2008.The UK participation in its preparation was entrusted by Technical CommitteeGEL/86, Fibre optics, to Subcommittee GEL/86/3, Fibre optic systems andactive devices.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not pur
3、port to include all the necessary provisions of acontract. Users are responsible for its correct application. BSI 2008ISBN 978 0 580 58725 2ICS 33.180.30BRITISH STANDARDBS EN 61291-6-1:2008Compliance with a British Standard cannot confer immunity fromlegal obligations.This British Standard was publi
4、shed under the authority of the StandardsPolicy and Strategy Committee on Amendments issued since publicationAmd. No. Date Text affectedMarch 200931EUROPEAN STANDARD EN 61291-6-1 NORME EUROPENNE EUROPISCHE NORM September 2008 CENELEC European Committee for Electrotechnical Standardization Comit Euro
5、pen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 61291-6-1:2008 E ICS 33.180.30
6、English version Opticial amplifiers - Part 6-1: Interfaces - Command set (IEC 61291-6-1:2008) Amplificateurs optiques - Partie 6-1: Interfaces - Rpertoire des commandes (CEI 61291-6-1:2008) Lichtwellenleiter-Verstrker - Teil 6-1: Schnittstellen - Befehlssatz (IEC 61291-6-1:2008) This European Standa
7、rd was approved by CENELEC on 2008-09-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concernin
8、g such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CENELEC member into its
9、own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, It
10、aly, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 61291-6-1:2008EN 61291-6-1:2008 - 2 - Foreword The text of document 86C/803/CDV, future edition 1 of IEC 61291-6-1, prepared by
11、SC 86C, Fibre optic systems and active devices, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 61291-6-1 on 2008-09-01. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of
12、an identical national standard or by endorsement (dop) 2009-06-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-09-01 Annex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 61291-6-1:2008 was approved
13、by CENELEC as a European Standard without any modification. _ BS EN 61291-6-1:2008- 3 - EN 61291-6-1:2008 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of
14、 this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD app
15、lies. Publication Year Title EN/HD Year ISO/IEC 8859-1 - 1)Information technology - 8-bit single-byte coded graphic character sets - Part 1: Latin alphabet No.1 - - 1) Undated reference. BS EN 61291-6-1:2008 2 61291-6-1 IEC:2008 CONTENTS INTRODUCTION.5 1 Scope.6 2 Normative references .6 3 Abbreviat
16、ions .6 4 General rules and concepts7 4.1 Command set encoding language7 4.2 Module initiated commands .7 4.3 Command set syntax structure 7 4.4 Command arguments 7 4.5 Command set terminators7 4.6 Module response prompt .7 4.7 Echo mode 8 5 Supported commands.8 6 Universal command set 9 6.1 Command
17、 set I 10 6.2 Command set II.13 7 Optional command set (design dependant).16 7.1 Command set I 17 7.2 Command set II.20 Annex A (normative) RST functionality.22 Annex B (informative) Alarm functionality.23 Table 1 Software commands8 Table 2 Universal software command set I.10 Table 3 Universal softw
18、are command set II13 Table 4 Optional software command set I 17 Table 5 Optional software command set II .20 Table A.1 Setpoint memory locations .22 Table B.1 Alarm status mode .23 Table B.2 Alarm example.24 Table B.3 Alarm action summary table.25 BS EN 61291-6-1:200861291-6-1 IEC:2008 5 INTRODUCTIO
19、N Optical amplifiers are being developed and commercially deployed with an increasing degree of sophistication and functionality. Often, information is sent to the optical amplifier, or requested from it, in order to determine signal conditions, operating parameters, and to adjust the operational as
20、pects of the optical amplifier. Currently, no International Standard exists in this area, yet the need for a common set of command statements to/from optical amplifiers has emerged. This part of IEC 61291 proposes a set of command strings useful in controlling optical amplifiers. It is based on an e
21、xisting set of commands widely used across the industry today. The standardization of this command set will result in broader market use of advanced designs of optical amplifiers, typically controlled by microprocessors. These advanced amplifier designs are needed for next generation optical network
22、s, requiring adaptive provisioning of optical paths and intelligent configuration/reconfiguration for provision of telecommunications services in a dynamic environment. This standard addresses the structure and content of the command set to control optical amplifiers. It does not cover the physical
23、or hardware interface which is assumed to exist for communication of this command set to the optical amplifier. The specification of a physical interface will be the subject of a separate standard yet to be developed. With the rapidly evolving technology, it is envisioned that this standard will be
24、amended with additional commands and functionality as technology evolves, and will be updated on a periodic basis, incorporating all previous amendments and additions. BS EN 61291-6-1:2008 6 61291-6-1 IEC:2008 OPTICAL AMPLIFIERS Part 6-1: Interfaces Command set 1 Scope This part of IEC 61291 describ
25、es the optical amplifier command set (OACS) for use in communicating with and controlling intelligent optical amplifiers. These amplifiers can receive and possibly respond to such commands by using resident firmware or may be optical amplifiers controlled by a microprocessor. This standard addresses
26、 the structure and content of the command set to control optical amplifiers. It does not cover the physical or hardware interface, which is assumed to exist for communication of this command set to the optical amplifier. The specification of a physical interface will be the subject of a separate Par
27、t to be developed in the IEC 61291-6 series. The command set described in this standard is intended to enable a user or host to retrieve the amplifier modules status and/or adjust its settings. This standard lists all of the commands currently defined and supported within the OACS framework. The com
28、mands described cover a wide range of applications, and not all commands will be applicable to every amplifier. To determine the supported commands on an OACS compliant amplifier, please refer to the product specification supplied by the manufacturer. All OACS compliant amplifiers support the full s
29、et of “universal” OACS commands. Other commands, usually specific to a design or implementation, may support some or all of the “optional” commands. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the editio
30、n cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO/IEC 8859-1: Information technology 8-bit single-byte coded graphic character sets Part 1: Latin alphabet No. 1 3 Abbreviations The following abbreviations are used in this s
31、tandard: ASCII American standard character for information interchange DC dispersion compensator EDFA erbium doped fibre amplifier OACS optical amplifier command set TEC thermo-electric cooler VOA variable optical attenuator BS EN 61291-6-1:200861291-6-1 IEC:2008 7 4 General rules and concepts 4.1 C
32、ommand set encoding language All data sent to/from the module are encoded in 8-bit ASCII characters. Refer to ISO/IEC 8859-1. 4.2 Module initiated commands The optical amplifier never sends an unsolicited response. Asynchronous notifications may be made, for example, by raising the appropriate “alar
33、m” output hardware signal. However, the module may be configurable to send a prompt on power-on reset. This initial prompt may be preceded by one or more start-up messages. 4.3 Command set syntax structure Commands consist of a command string, zero or more arguments, and end with a terminator. Comma
34、nd strings are case-insensitive. All commands have the following format: COMMAND 4.4 Command arguments Arguments may be strings of letters, integers or floating-point numbers. Floating-point numbers shall be entered in fixed notation (e.g. 0.023 not 2.3e-2). Command strings and arguments shall be se
35、parated by one or more separator characters. Separators shall be 8-bit ASCII space characters. 4.5 Command set terminators The command terminator is . In the case of , the command is executed on receipt of the character and the character is ignored. A successful command execution may be responded to
36、 with an “OK” Unacknowledged commands may be responded to with a “?”. Command response consists of an optional response or error message. Error messages always start with the “?” character and normal responses do not. If a command completes normally and has no useful information to report, its respo
37、nse will be empty (no characters). Contents of error messages are not specified within this standard. The following are examples of some of the types of errors that are possible (this list is not all-inclusive): ?Unknown command REBOOT ?Argument x invalid ?Argument 5 out of range 1,4 ?Not implemente
38、d ? 4.6 Module response prompt All responses are followed by a prompt, which indicates that the module is ready to process another command. The default prompt is “”. BS EN 61291-6-1:2008 8 61291-6-1 IEC:2008 4.7 Echo mode By default, the module doesnt echo characters sent to it. However, if echo mod
39、e is enabled, printable 8-bit ASCII characters are echoed. Also, echo mode enables command-line editing using the backspace key (the backspaces are echoed if there are characters to delete). 5 Supported commands Table 1 summarizes the software commands that are supported through the OACS interface.
40、The description of software commands in Table 1 is normative while the commands are informative. There are two sets of commands that are currently being used in the industry. It is recommended that the user choose the commands from only one of the sets, i.e. either from set I or II, and not mix the
41、commands from the two sets. For detailed command syntax and the corresponding response, see Clause 6 for the universal set of commands used by all OACS compliant optical amplifiers or Clause 7 for additional optional command sets. Table 1 Software commands (page 1/2) Normative Informative Descriptio
42、n Type Applicability Command Set I Command Set II Read Write Universal OptionalSet alarm setpoints x x x ALRM ALT, ALH Display activated alarms x x AST ALO Set alarm status mode x x x ASTM ALS Set baud rate x x x BAUD BPS Reboot firmware x x BOOT RBT Set dispersion compensator parameters x x x DCM D
43、CSSet command line echo x x x ECHO ECH Display signal gain x x GAIN APG Set loss of signal mode x x x LOS ASD Set control mode x x x MODE APS Display module status x x MST AST Display module case temperature x x MT CSTDisplay optimal flat gain setting x x OFG N/A Display photodiode power x x PD PDP
44、Display input power x x PIN PDP Display total output power x x POUT PDP Display signal output power x x PSIG APP Set pump power x x x PSP LDP Display pump status, set pump current x x x PUMP LDC,LDT,LTS Display pump power x x PWR LDP Download protocol x x RECV UPD Display reflected power at output x
45、 x RFL REF Restore default settings x x RST RFD Display per-stage signal gain x x SGAIN APG BS EN 61291-6-1:200861291-6-1 IEC:2008 9 Table 1 (continued, page 2/2) Normative Informative Description Type Applicability Command Set I Command Set II Read Write Universal Optional Set per-stage gain limit
46、x x x SGLIM GLM Set per-stage control mode x x x SMODE APS Display per-stage status x x SMST APS Display per-stage input power x x SPIN PDP Set per-stage power limit x x x SPLIM PLM Display per-stage total output power x x SPOUT PDP Display per-stage signal output power x x SPSIG APP Display reflect
47、ed power at stage output x x SRFL REF Set output tilt x x x TILT TLT Display version information x x VER VER Set VOA attenuation x x x VOA VAS 6 Universal command set This clause describes the syntax of commands in the two command sets I and II. The commands are informative. It is recommended that t
48、he user choose the commands from only one of the sets, i.e. either from set I or II, and not mix the commands from the two sets. Each command is shown with arguments in italics. All OACS compliant amplifiers shall support commands shown in this clause. Variations due to optional arguments are shown
49、on separate lines. In the examples, a sample of communications is shown starting with the prompt from the module and ending with the prompt following the final command. Text sent to the module from the host is shown in bold (assumes echo mode is on). BS EN 61291-6-1:2008 10 61291-6-1 IEC:2008 6.1 Command set I Table 2 Universal software command set I (informative) (page 1/4) Sub- clause Command Description Example 6.1.1 ALRM x y ALRM x ALRM Di
