1、- f-/ j%2J MIL-STD-1773 NOTICE I MC m 7777711 0025577 MIL-STD-1773 20 MAY 1988 MILITARY STANDARD - I FIBER OPTICS MECHANIZATION OF AN AIRCRAFT INTERNAL TIME DIVISION COMMAND/RESPONSE MULTIPLEX DATA BUS AMSC N/A FSC DISTRIBUTION STATEMENT A: Approved for public release; distribution .s un1 fl THIS DO
2、CUMENT CONTAINS qq PAGES. % MCCR mited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-I773 NOTICE I MC W 9999933 0025600 O W MIL-STD-1773 Fiber Optics Mechanization of an Aircraft Time Division Command/Response Mu1 tiplex Data Bus DOO-STD-
3、1 77 3 1.This Military Standard is proposed for use by all Departments and Agencies of the Department of Defense. 2.Beneficial comments (recommendations I additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air
4、 Engineering Center, Systems Engineering and Standardization Department (Code 53131, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this standard or by letter. Provided by IHSNot for ResaleNo reproduction or netwo
5、rking permitted without license from IHS-,-,-I MIL-STD-1773 NOTICE 1 MC m 99999LL 0025601 2 PI MI L-STD-1773 I: FOREWORD This Military Standard contains requirements for fiber optic mechanizations of an aircraft internal time division command/response mu1 tiplex data bus for use in systems integrati
6、on of aircraft subsystems. bus protocol, bit assignment and related bus traffic management is MIL-STD- 1553B. medium in a manner which is compatible with MIL-STD-1553B. The parent document for data DOD-STD-1773 provides for the use of fiber optics as the transmission This document is structured to f
7、ollow the organization of MIL-STD-1553B as closely as possible with additions and omissions to MIL-STD-1553B only where necessary to allow fiber optics. To assist the reader in identifying changes which have been made, an asterisk (*I has been placed to the left of each paragraph, figure and table n
8、umber which is not identical with MIL-STD-1553B. Paragraph numbers used in MIL-STD-1553B but omitted in DOD-STD-1773 include all subparagraph numbers of 4.5.1.5, 4.5.2.1 and 4.5.2.2. - Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-L773 NOTI
9、CE L MC = 77797LL 0025b02 4 NOTICE OF CHANGE I I NOT MEASUREMENT SENSITIVE MIL-STD-i773 NOTICE 1 (USAI?) 2 October 1989 MILITARY STANDARD FIBER OFTICS MECHANIZATION OF AN AIRCM INIEFWAL TIME DIVISION COMMAND/RESPONSE MULTIPLEX DATA BUS TO ALL AIR FORCE HOLDERS OF MIL-STD-1773. 1. THE FOLLOWJNGPAGES
10、OF MIL-STD-1773 HAVE BEEN REVISED AND SUPERSEDE THE PAGES LISTED, FOR AIR FORCE APPLICATIONS. NEW PAGE DATE SUPERSEDED PAGE DAIJTE 1 2 October 1989 1 20 May 1988 la/ib 2 October 1989 - 2 20 May 1988 REPIUNTED WITHOUT CHANGE - 2. RETAIN THIS NOTICE AND INSERT BEFORE TAB= OF CONTENTS. 3. Holders of MI
11、L-STD-1773 will verify that page changes and additions indicated above have been entered. This notice page will re retained as a check sheet. This issuance, together with appended pages, is a separate publication. Each notice is to be retained by stocking points until the military standard is comple
12、tely revised or canceled. Custodians: Air Force - 11 Review activities: Air Force - 80: 85, 99 AMSC: N/A Preparing activity: Air Force - 11 (Project MCCRiFO3 3) AREA MCCR DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. - - Provided by IHSNot for ResaleNo reproductio
13、n or networking permitted without license from IHS-,-,-MIL-STD-1773 NOTICE 1 MC = 9997733 0025603 6 PB Paragraph 1 . *1.1 1.2 1.3 2 . *2.1 3 . 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17 3.18 3.19 *3.20 3.21 *3.22 4 . 4.1 *4.2 4.3 4.3.1 4.3.2 4.3.3 4.3.3.1 4.3.3.2 4.3
14、.3.3 4.3.3.4 4.3.3.5 4.3.3.5.1 MI L-STD-1773 CONTENTS Page SCOPE . 1 Scope . 1 Application . 1 Purpose . 1 REFERENCED DOCUMENTS 1 Issue of document 1 DEFINITIONS . 2 Bit . 2 Bit rate 2 Pulse Code Modulation (PCM) . 2 Half duplex . 2 Word 2 Message . 2 Subsystem . 2 Data bus 2 Terminal 2 Bus controll
15、er 2 Bus monitor . 2 Remote Terminal (RT) 2 Asynchronous operation 3 Dynamic bus control . 3 Commandlresponse 3 Redundant data bus 3 Broadcast . 3 Mode code . 3 Access coupler 3 Optical signal range 3 Mid-Bit transition 3 Time Division Multiplexing (TDM) 2 GENERAL REQUIREMENTS 3 Test and operating r
16、equirements . 3 Data bus operation 3 Characteristics . 4 Data form . 4 Bit priority 4 Transmission method . 4 Modulation 4 Data code . 4 Transmission bit rate . 4 Word size . 4 Word formats 4 Command word 5 a IV a Provided by IHSNot for ResaleNo reproduction or networking permitted without license f
17、rom IHS-,-,-L MIL-STD-1773 NOTICE I MC S 9797933 0025604 a 1 . Paragraph *4.3.3.5.1.1 4.3.3.5.1.2 4.3.3.5.1.3 4.3.3.5.1.4 4.3.3.5.1.5 4.3.3.5.1.6 4.3.3.5.1.7 4.3.3.5.1.7.1 4.3.3.5.1.7.2 4.3.3.5.1.7.3 4.3.3.5.1.7.4 4.3.3.5.1.7.5 4.3.3.5.1.7.6 4.3.3.5.1.7.7 4.3.3.5.1.7.8 4.3.3.5.1.7.9 4.3.3.5.1.7.10 4
18、.3.3.5.1.7.11 4.3.3.5.1.7.12 4.3.3.5.1.7.13 4.3,3.5.1.7.14 4.3.3.5.1.7.15 4.3.3.5.1.7.16 4.3.3.5.1.7.17 4.3.3.5.2 *4.3.3.5.2.1 4.3.3.5.2.2 4.3.3.5.2.3 4.3 * 3.5.3 4.3.3.5.3.1 4.3.3.5.3.2 4.3.3.5.3.3 4.3.3.5.3.4 4.3.3.5.3.5 4.3.3.5.3.6 4.3.3.5.3.7 4.3.3.5.3.8 4.3.3.5.3.9 4.3.3.5.3.10 4.3.3.5.3.11 4.3
19、.3.5.3.12 4.3.3.5.4 4.3.3.6 4.3.3.6.1 4.3.3.6.2 4.3.3.6.3 i MI L-STD- 1773 CONTENTS (continued) Page Sync 5 Remote terminal address . 5 TransmWreceive 5 Subaddress/mode . 5 Data word count/mode code . 5 Parity 5 Optional mode control . 5 Dynamic bus control . 9 Synchronize (without data word) . g Tr
20、ansmit status word 9 Initiate self test . 9 Transmitter shutdown 9 Override transmitter shutdown . 9 Inhibit terminal flag (TIF) bit . g Override inhibit TIF bit 9 Reset remote terminal . 13 Reserved mode codes (O1001 to 01111) 13 Transmit vector word 13 Synchronize (with data word) 13 Transmit last
21、 command word 13 Transmit Bui 1 t-In-Test (BIT) word . 13 Selected transmitter shutdown . 13 Override selected transmitter shutdown 13 Reserved mode codes (10110 to 11111) 14 Data word . 14 Sync 14 Parity 14 Status Word . 14 Sync . 14 RT address 14 Message error bit . 14 Instrumentation bit . 14 Ser
22、vice request bit . 14 Reserved status bits 15 Broadcast command received bit 15 Busy bit 15 Subsystem flag bit 15 . Dynamic bus control acceptance bit 15 Terminal flag bit . 16 Parity bit 16 Status word reset . 16 Data 14 Message formats . 16 Bus controller to remote terminal transfers . 16 Remote t
23、erminal to bus controller transfers . 16 Remote terminal to remote terminal transfers 16 I I . V Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Paragraph 4.3,3.6.4 4.3.3.6.5 4.3.3.6.6 4.3.3.6.7 4.3.3.6.7 1 4.3.3.6.7.2 4.3.3.6.7.3 4.3.3.6.7.4 “4.3 0
24、3.7 “4.3.3.8 “4.3.3.9 4.4 4.4.1 4.4.1.1 4.4.1.2 4,4,1.3 4.4.2 4.4.3 4.4.3.1 4.4.3.2 4.4.3,3 4.4.3.4 4.435 4.4.3.6 4.4.4 4.5 4.5.1 “4.5.1.1 4.5.1.2 *4.5.1,3 “4.5.1.4 “44.5.1.5 “4.5.1.6 “4.5.2 “4.5.2.1 “4.5.2.2 “4.5.2 3 “4.5.2.4 “4.5.3 “4.5.3.1 “4.5.3.2 “44.5,3.3 4.6 MIL-STD-II773 NOTICE 3 MC U 999943
25、3 0025b05 T II MI L-STD-1773 CONTENTS (continued) Page Mode command without data word 16 Mode command with data word (transmit) 16 Mode command with data word (receive) . 17 Optional broadcast command 17 Bus controller to remote terminal(s1 transfer (broadcast) . 17 Remote termi na1 to remote termin
26、al (SI transfers (broadcast) . 17 Mode command without data word (broadcast) 17 Mode command with data word (broadcast) . 17 Intermessage gap 17 Response time . 20 Minimum no-response time-out 20 Common operation 20 Word validation . 20 Transmission continuity . 20 Terminal fail-safe 20 Bus controll
27、er operation 20 Remote terminal . 23 Operation . 23 Superseding val id commands 23 Invalid commands 23 Illegal command . 23 Valid data reception 23 Bus monitor operation . 23 Hardware characteristics 24 Data bus characteristics 24 Cable . 24 Cable characteristics . 24 Cable termination . 24 Connecto
28、rs 24 Bus configuration . 24 Optical signal requirements . 24 Terminal output characteristics . 24 Output optical power 24 Output waveform . 24 Output noise 24 Output- spectral characteristics . 24 Terminal input characteristics 24 Input waveform compatibility 24 Error rate 25 Terminal operation 20
29、Invalid data reception 23 Minimum input signal 25 Redundant data bus requirements . 25 vi Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-. MIL-STD-1773 NOTICE 1 MC 7777731 OO25bOb 1 MIL-STD-1773 Paragraph *4.6.1 4.6.2 4.6.3 4.6.3.1 4.6.3.2 5 . “5.1
30、*6 . .6.1 .6.2 CONTENTS (continued) Page Electrical/optical isolation 26 Single event failures . 26 Dual standby redundant data bus . 26 Data bus activity . 26 Reset data bus transmitter 27 DETAIL REQUIREMENTS . 27 Specific implementations 27 NOTES . 27 Intended use 27 Subject term (key word) listin
31、g . 27 Figure *1 *2 *3 *4 *5 6 7 *9 *a *10 I *II 10 10.1 10.2 *10.3 *10.4 *10.5 20 *20.1 *20.2 . *20.3 FIGURES Page Sample multiplex data bus architecture 5 Data encoding . 6 Word formats 7 Command and status sync . 12 Data sync . 12 Information transfer formats 18 Broadcast information transfer for
32、mats 19 Intermessage gap and response time 21 Data bus interface using separate transmit and receive fibers 22 Data bus interface using a single transmit and receive fiber . 22 TABLES Assigned mode codes . 10 Criteria for acceptance or rejection of a terminal for the error test 25 APPENDIX GENERAL .
33、 28 Redundancy 28 Bus controller 28 Multiplex selection criteria 28 High reliability requirements . 28 Use of broadcast option . 30 OPTICAL BUS NETWORK CONSIDERATION . 30 Comparison with wire bus networks . 30 Typical fiber optic data bus configurations . 31 Optical signal power reduction in access
34、couplers . 31 vi i Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Paragraph 30 30.1 30.2 30.3 30.4 30.4.1 30.4.2 30.4.2.1 30.4.2.2 30.4.3 30.4.4 30.5 30.5.1 30.5.2 30.5.3 30.6 30.7 30.8 30.9 *ll “2 “1 3 MLL-STFX773 NOTICE I MC 4447711 0025607 3 MIL-
35、STD-1773 Page GENERAL REQUIREMENTS . 31 Option Selection . 31 Application 31 Unique Address . 33 SubaddressIMode 33 Required Mode Codes 33 Remote Terminal Required Mode Code . 33 Bus Control ler Required Mode Code 33 Reset Remote Terminals . 33 Initiate RT Self Test 34 Status word Bit 34 Information
36、 Content 34 Status Bit Requirements 34 Busy Bit . 34 Broadcast 34 Data Wraparound 35 Message Formats 35 RT to RT Validation 35 Mode Code 33 APPENDIX FIGURES Illustration of possible redundancy . Illustration of possible redundancy . 29 29 Typical fiber optical data bus system configurations 32 vii P
37、rovided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-STD-1773 NOTICE 1 MC = 999931L 0025608 5 3 Q 1. SCOPE e MIL-STD-1773 NOTICE 1 (USAF) 1.1 Scope. This standard defines requirements for digital, command/response time division multiplexing (data bus)
38、 techniques on aircraft. It encompasses the fiber optic data bus transmission line, the electro-optical transmission and reception units, and the associated interface electronics. The concept of operation and information flow on the multiplex data bus and the optical, electrical and functional forma
39、ts to be employed are also defined. requirements shall apply to the multiplex data bus and associated equipment which is developed either alone or as a portion of an aircraft weapon system or subsystem development. The contractor is responsible for invoking all of the applicable requirements of this
40、 Military Standard on any and all subcontractors he may employ. * 1.2.1 Air Force ADplication. Potential Air Force users of MIL-STD-1773 should consider the following: * a. The Air For however, it will ensure general compatibility of the optical modulation techniques. The optical power levels, optic
41、al wavelength and the means for distributing optical power in any specific implementation must be contained in a specification which references this standard. 2. A.PPUCAI3LE DOCUMIENTS 1.2 Aoplication. When invoked in a specification or statement-of-work, these c. The Air Force intends to pursue fib
42、er optics application for a standardized . 2.1 Government documents 2.1.1 Soecifications. standards. and handbooks. The following standard forms a part of this document to the extent specified herein. Unless otherwise specified, the issues of this document are those listed in the issue of the Depart
43、ment of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation. SUPERSEDES PAGE 1 OF MQL-STD-1773 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- - - A MIL-STD-1773 NOTICE Z MC m 77777Z1 0025607 7
44、m 3- STANDARDS Mi 1 i tar y MIL-STD-1553 Aircraft Internal Time Division Command/Response Multiplex Data Bus (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the Naval Publications and Forms Center, (A-ITN: NPODS), 5801 Tabor Ave
45、nue, Philadebhia PA 19120-5099.) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemptio
46、n has been obtained. lallb Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-STD-1773 NOTICE i MC 7777713 0025bLO 3 B MIL-STD-1773 3. DEFINITIONS 3.1 I: 3 Y V z i2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license
47、 from IHS-,-,-flIL-STD-I773 NOTICE I MC 777773I 0025637 b MIL-STD-1773 direction of data word flow as specified in 4.3.3.5.1.3. No multiple data word transfer shall be implemented with any mode code. The mode codes are reserved for the specific functions as specified in Table I and shall not be used
48、 for any other purpose. functions, the specific codes, T/R bit assignments and use of a data word, shall be used as indicated. The use of the broadcast command option shall only be applied to particular-mode codes as specified in Table I. If the designer chooses to implement any of these 4.3.3.5.1.7
49、.1 Dynamic bus control. The controller shall issue a trans- mit command to an RT capable of performing the bus control function. This RT shall respond with a status word as specified in 4.3.3.5.3. Control of the data bus passes from the offering bus controller to the accepting RT upon completion of the transmission
