1、AEROSPACE STANDARDAS4111Issued 1998-10Validation Test Plan for the Digital Time Division Command/ResponseMultiplex Data Bus Remote T erminalsFOREWORDThis document was developed as a companion standard to AS15531, Digital Time Division Command/Response Multiplex Data Bus. This standard is the result
2、of a conversion of a military document to a commercial standard. This standard has been written to support both SAE AS15531 andMIL-STD-1553B. The lineage of this document is:Appendix A, MIL-HDBK-1553, Multiplex Applications HandbookSection 100, MIL-HDBK-1553A, Multiplex Applications HandbookThis doc
3、ument should be used as an aid in the development, test and verification of remote terminal designs. Interpretations and clarifications to AS15531 and MIL-STD-1553B have been made and are useful in understanding the intent of the standards meaning.This document was prepared under the direction of th
4、e following:AS-1A, T est Plans T ask Group, Leroy Earhart, ChairmanAS-1A, Avionics Systems Subcommittee, Bryan Graber, ChairmanAS-1, Avionics/Armament Integration Committee, Ed Gladney, ChairmanASD, Avionics Systems Division, Chris deLong, ChairmanPlease send any comments and/or corrections to:Chris
5、 deLongHoneywell Defense Avionics Systems9201 San Mateo Blvd. NEAlbuquerque, NM 87113(505) 828-5492Reaffirmed 2011-11RATIONALE This document has been reaffirmed to comply with the SAE 5-year Review policy. SAE Technical Standards Board Rules provide that: “This report is published by SAE to advance
6、the state of technical and engineering sciences. The use of this report is entirely voluntary, and its applicability and suitability for any particular use, including any patent infringement arising therefrom, is the sole responsibility of the user.” SAE reviews each technical report at least every
7、five years at which time it may be revised, reaffirmed, stabilized, or cancelled. SAE invites your written comments and suggestions. Copyright 2011 SAE International All rights reserved. No part of this publication may be reproduced, stored in a retrieval system or transmitted, in any form or by any
8、 means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of SAE. TO PLACE A DOCUMENT ORDER: Tel: 877-606-7323 (inside USA and Canada) Tel: +1 724-776-4970 (outside USA) Fax: 724-776-0790 Email: CustomerServicesae.org SAE WEB ADDRESS: http:/www.sae.o
9、rg SAE values your input. To provide feedback on this Technical Report, please visit http:/www.sae.org/technical/standards/AS4111 Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS4111- 2 -TABLE
10、OF CONTENTS1. SCOPE . 61.1 General . 61.2 Field of Application 62. REFERENCES . 62.1 Applicable Documents 62.1.1 SAE Publications . 62.1.2 U.S. Government Publications 73. DEFINITIONS . 73.1 Responses 73.1.1 Broadcast Command Received 73.1.2 Clear Status 73.1.3 Busy Bit . 73.1.4 Dynamic Bus Acceptan
11、ce Bit 73.1.5 Service Request Bit . 73.1.6 Message Error Bit . 73.1.7 No Response 73.1.8 Respond In Form 73.1.9 Subsystem Flag Bit . 73.1.10 Terminal Flag Bit . 74. GENERAL REQUIREMENTS . 84.1 General Test Requirements 84.2 Test for Optional Requirements . 84.3 General Monitoring Requirement 85. DET
12、AILED REQUIREMENTS . 95.1 Electrical Tests 95.1.1 Output Characteristics . 95.1.1.1 Amplitude 95.1.1.2 Risetime/Falltime . 95.1.1.3 Zero Crossing Stability 95.1.1.4 Distortion, Overshoot and Ringing 105.1.1.5 Output Symmetry 105.1.1.6 Output Noise . 105.1.1.7 Output Isolation . 105.1.1.8 Power On/Of
13、f . 115.1.1.8.1 Power On/Off Noise 11Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS4111- 3 -TABLE OF CONTENTS (Continued)5.1.1.8.2 Power On Response . 115.1.1.9 Terminal Response Time . 125.1
14、.1.10 Transmission Bit Rate . 125.1.2 Input Characteristics . 125.1.2.1 Input Waveform Compatibility . 135.1.2.1.1 Zero Crossing Distortion . 135.1.2.1.2 Amplitude Variations 145.1.2.1.3 Rise and Fall Time 145.1.2.1.3.1 Trapezoidal 145.1.2.1.3.2 Sinusoidal 145.1.2.2 Common Mode Rejection 155.1.2.3 I
15、nput Impedance . 155.2 Protocol Tests 155.2.1 Required Remote Terminal Operation . 155.2.1.1 Response to Command Words . 155.2.1.1.1 RT Response to Command Words . 165.2.1.1.2 RT to RT Response to Command Words 195.2.1.2 Intermessage Gap . 195.2.1.2.1 Minimum Time . 195.2.1.2.2 Transmission Rate 215
16、.2.1.3 Error Injection 215.2.1.3.1 Parity . 215.2.1.3.1.1 Transmit Command Word . 215.2.1.3.1.2 Receive Command Word 225.2.1.3.1.3 Receive Data Words . 225.2.1.3.2 Word Length 225.2.1.3.2.1 Transmit Command Word . 225.2.1.3.2.2 Receive Command Word 225.2.1.3.2.3 Receive Data Words . 235.2.1.3.3 Bi-P
17、hase Encoding 235.2.1.3.3.1 Transmit Command Word . 235.2.1.3.3.2 Receive Command Word 235.2.1.3.3.3 Receive Data Words . 245.2.1.3.4 Sync Encoding 245.2.1.3.4.1 Transmit Command Word . 245.2.1.3.4.2 Receive Command Word 245.2.1.3.4.3 Data Word . 245.2.1.3.5 Message Length 255.2.1.3.5.1 Transmit Com
18、mand . 255.2.1.3.5.2 Receive Command 255.2.1.3.5.3 Mode Command Word Count Error. 255.2.1.3.5.4 RT to RT Word Count Error . 265.2.1.3.6 Contiguous Data . 265.2.1.3.7 Terminal Fail-Safe . 26Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking p
19、ermitted without license from IHS-,-,-SAE AS4111- 4 -TABLE OF CONTENTS (Continued)5.2.1.4 Superseding Commands . 275.2.1.4.1 RT Superseding Commands . 275.2.1.4.2 RT to RT Superseding Command . 285.2.1.5 Required Mode Commands 285.2.1.5.1 Transmit Status . 295.2.1.5.2 Transmitter Shutdown and Overri
20、de . 305.2.1.5.3 Reset Remote Terminal . 315.2.1.6 Data Wrap-Around 325.2.1.7 RT to RT Message Errors . 325.2.1.7.1 RT to RT Timeout 335.2.1.7.2 RT to RT Message Format Errors . 335.2.1.7.3 Transmitting RT Errors 345.2.1.8 Bus Switching 355.2.1.9 Unique Address . 375.2.2 Optional Operation 375.2.2.1
21、 Optionional Mode Commands . 375.2.2.1.1 Dynamic Bus Control 375.2.2.1.2 Synchronize 385.2.2.1.2.1 Synchronize (Without Data Word) . 385.2.2.1.2.2 Synchronize (With Data Word) 385.2.2.1.3 Initiate Self- Test . 385.2.2.1.4 Transmit BIT Word 385.2.2.1.5 Selected Transmitter Shutdown and Override 395.2
22、.2.1.6 Terminal Flag Bit Inhibit and Override . 405.2.2.1.7 Transmit Vector Word 405.2.2.1.8 Transmit Last Command . 415.2.2.2 Status Word Bits 425.2.2.2.1 Service Request 425.2.2.2.2 Broadcast Command Received 435.2.2.2.3 Busy 435.2.2.2.4 Subsystem Flag 445.2.2.2.5 Terminal Flag . 445.2.2.3 Illegal
23、 Command . 455.2.2.4 Broadcast Mode Commands . 465.2.2.4.1 Broadcast Synchronize (Without Data Word) 465.2.2.4.2 Broadcast Synchronize (With Data Word) . 465.2.2.4.3 Broadcast Initiate Self-Test . 475.2.2.4.4 Broadcast Transmitter Shutdown and Override 475.2.2.4.5 Broadcast Selected Transmitter Shut
24、down and Override . 485.2.2.4.6 Broadcast Terminal Flag Bit Inhibit and Override 505.2.2.4.7 Broadcast Reset Remote Terminal . 515.2.2.4.8 Broadcast Dynamic Bus Control . 525.2.2.5 Error Injection - Broadcast Messages . 525.2.2.5.1 Parity - BC-RT Broadcast 53Copyright SAE International Provided by I
25、HS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS4111- 5 -TABLE OF CONTENTS (Continued)5.2.2.5.1.1 Command Word Error . 535.2.2.5.1.2 Data Word Error 535.2.2.5.2 Message Length, BC to RT Broadcast 535.3 Noise Rejection Test . 54APPENDI
26、X A TEST PLAN TO AS15531 AND MIL-STD-1553B CROSS REFERENCE 68APPENDIX B MIL-STD-1553B TO TEST PLAN CROSS REFERENCE . 73APPENDIX C AS15531 TO TEST PLAN CROSS REFERENCE 77APPENDIX D TEST PLAN CHANGES FOR MIL-STD-1553B ONLY RTS 80APPENDIX E TEST PLAN CHANGES FOR MIL-STD-1553B, NOTICE 1 RTS 81TABLE 1 Un
27、defined Mode Codes . 17TABLE 2 Intermessage Gap Messages . 20TABLE 3 Criteria for Acceptance or Rejection of a Terminal for the Noise Rejection Tests . 55FIGURE 1A Resistor Pad Configuration . 56FIGURE 1B Bus Configuration 56FIGURE 2 Waveform Measurements . 57FIGURE 3 Zero Crossing Interval Measurem
28、ents 58FIGURE 4 Output Noise Configuration . 58FIGURE 5 Output Isolation . 59FIGURE 6A Transformer Coupled Common Mode Configuration . 60FIGURE 6B Direct Coupled Common Mode Configuration . 61FIGURE 7 Gap Measurement Time 62FIGURE 8 RT - RT Timeout Measurement . 63FIGURE 9A Configuration for Noise R
29、ejection Test 64FIGURE 9B Suggested Configuration for Noise Rejection Test 65FIGURE 10A Configuration for Noise Rejection Test 66FIGURE 10B Suggested Configuration for Noise Rejection Test 67Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking
30、 permitted without license from IHS-,-,-SAE AS4111- 6 -1. SCOPE :This SAE Aerospace Standard (AS) contains a sample test plan for AS15531 or MIL-STD-1553B Remote Terminals (RT) that may serve several different purposes. This document is intended to be contractually binding when specifically called o
31、ut in a specification, Statement of Work (SOW), or when required by a Data Item Description (DID). Any and all contractor changes, alterations, or testing deviations to this section shall be separately listed for easy review.1.1 General:The purpose of these tests is to verify that the Unit Under Tes
32、t (UUT) responds properly in accordance with the requirements of the governing standard. The tests are not intended to verify the mission aspects stated in the equipment specification.The pass criteria is defined in each test paragraph. If any test fails, record the UUT response to that test.1.2 Fie
33、ld of Application:This general test plan is intended for design verification of remote terminals designed to meet the requirements of AS15531 and MIL-STD-1553B with Notice 2. Appendix A, B, and C provide cross references among this test plan, AS15531, and MIL-STD-1553B. For those remote terminals no
34、t required to meet Notice 2, Appendix D and E list the changes in this test plan for MIL-STD-1553B only and MIL-STD-1553B, Notice 1. The test plan requirements apply to the terminal under test, when invoked in a specification or statement of work.When invoked in a specification or statement of work,
35、 these requirements apply to the remote terminal and associated equipment which is developed either alone or as a portion of a system or subsystem development. The contractor is responsible for invoking all the applicable requirements of this document on any and all subcontractors he/she may employ.
36、2. REFERENCES:2.1 Applicable Documents:The following publications form a part of this standard to the extent specified herein. The latest issue of SAE publications shall apply. The applicable issue of other publications shall be the issue in effect on the date of the contract. In the event of confli
37、ct between the text of this standard and references cited herein, the text of this standard takes precedence. Nothing in this standard, however, supersedes applicable laws and regulations unless a specific exemption has been obtained.2.1.1 SAE Publications:Available from SAE, 400 Commonwealth Drive,
38、 Warrendale, PA 15096-0001.AS15531 Digital Time Division Command/Response Multiplex Data BusCopyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without license from IHS-,-,-SAE AS4111- 7 -2.1.2 U.S. Government Publications :Availabl
39、e from DODSSP, Subscription Services Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.MIL-STD-1553B Digital Time Division Command/Response Multiplex Data BusNotice 23. DEFINITIONS:3.1 Responses:The following are definitions of the responses of the RT as used in this test plan. In e
40、ach case the status word must have the correct terminal address and unused status bits set to zero.3.1.1 Broadcast Command Received (BCR):The broadcast command received bit (bit time fifteen) is set in the status word (and no data words in response to a transmit status mode command or a single data
41、word in response to a transmit last command mode command).3.1.2 Clear Status (CS):The status word may have the busy bit and/or service request bit set. All other status code bits in the status word must be zero and the associated message must have the proper word count.3.1.3 Busy Bit (BUSY):CS with
42、the busy bit (bit time sixteen) set in the status word, and no data words.3.1.4 Dynamic Bus Acceptance Bit (DBA): CS with the dynamic bus control acceptance bit (bit time eighteen) set in the status word.3.1.5 Service Request Bit (SRB):CS with the service request bit (bit time eleven) set in the sta
43、tus word.3.1.6 Message Error Bit (ME):The message error bit (bit time nine) is set in the status word followed by no data words (except in response to a transmit last command mode command which requires one data word).3.1.7 No Response (NR):The addressed terminal does not produce any response to the
44、 command.3.1.8 Respond In Form:A terminal is said to “respond in form” if its response to an illegal command as defined in the paragraph titled “Illegal command” of AS15531 or MIL-STD-1553B consists of a response formatted as though it were a legal command.3.1.9 Subsystem Flag Bit (SF): CS with the
45、subsystem flag bit (bit time seventeen) set in the status word.3.1.10 Terminal Flag Bit (TF): CS with the terminal flag bit (bit time nineteen) set in the status word.Copyright SAE International Provided by IHS under license with SAENot for ResaleNo reproduction or networking permitted without licen
46、se from IHS-,-,-SAE AS4111- 8 -4. GENERAL REQUIREMENTS :4.1 General Test Requirements:The following paragraphs define the configurations, pass/fail criteria, and general procedures for testing remote terminals (RT). Specifically, this document contains the test configurations and procedures for the
47、Electrical Tests (5.1), the Protocol Tests (5.2), and the Noise Rejection Test (5.3) for AS15531 and MIL-STD-1553B remote terminals. The remote terminal under test is referred to as the Unit Under Test (UUT). Proper terminal responses are defined in each test paragraph. If the hardware/software desi
48、gn of the UUT does not permit a test to be performed, then adequate analysis shall be provided in place of the test results to demonstrate that the design meets the requirements of AS15531 or MIL-STD-1553B as stated in the test.Any condition which causes the UUT to respond other than as called out i
49、n AS15531 or MIL-STD-1553B, to lock up, or require a power cycle in order to recover for any reason shall automatically cause that UUT to fail the test. All occurrences of responses with the busy bit set in the status word shall be recorded. If the UUT response does not match the pass criteria for a particular test, then the UUT has failed that test.4.2 Test for Option
