1、I MIL-C-L34 (1) bL m 7777706 0074573 O m MILTC -81344 (AS) 1 MAY 1968 AMENNT-1 MILITARY SPECIFICATION CONVERTER, SIGNAL DATA CV-2461( )/A This amendment forms a part of Military Specification MIL-S-81344(AS) dated 27 Dec 1965 and has been approved by the Naval Air Systems Command; Department of the
2、Navy. Page 1, Specification Title: Delete and substitute the title of this amendmen t. Page 1, paragraph 1.1: Page 1, paragraph 3.2(1): Change “11 bit binary“ to “12-14 bit binary“. Change “WR-101, part 2“ to “WR-101, part II“, and add: “except for linear microelectronic circuits“. Page 2, paragraph
3、 3.2.1: Add: “except that microelectronic devices shall be in accordance with WR-101, part II“. Page 2, paragraph 3.2.2: Delete Page 2, paragraph 3.2.3, line 2 after “Assemblies shall“: , Delete and A. substitute “meet the requirements of AR-5“. Page 2, Add: “3.2.4 Maintenance Module - A maintenance
4、 module is defined as the least complex segment of the contract end article(s) which is capable of being removed and replaced at organizational level maintenance using tools, support equipment and procedures approlr-a for the end article(s). Further, it is the segment to which the C0ntract.r will pr
5、ovide fault detection and isolation techniques consistent with scheduled and unscheduled organizational level maintenance requirements. 3.2.5 Microelectronic Interchangeability - The interchangeability provisions of AR-5 shall govern microelectronic interchangeability“. Page 2, paragraph 3.3.1: Dele
6、te “50 pounds“ and substitute 80.0 pounds“. Page 2, paragraph 3.3.2.3.1, line 1: Delete “specified or“ and on line 2 Delete “specified“ . Page 2, paragraph 3.3.2.3.2: Delete “MTBF To Be Demonstrated By Test“ and Substitute “Specified MTBF“. FSC 6125 / -. ._ I Provided by IHSNot for ResaleNo reproduc
7、tion or networking permitted without license from IHS-,-,-MIL-C-1344 (3 61 = 9999906 0417577 = MLL- C -81344 (AS) AMENDMENT- 1 1 MAY 1968 Page 2, Add: conduct a reliability assurance program in accordance with MIL-STD-785“ Page 3, paragraph 3.3.2.4: Page 3, paragraph 3.3.3, line 11, after “cases“ ad
8、d “of failure“. Page 3, paragraphs 3.3.3.1, 3.3.3.1.2, 3.3.3.1.3, and 3.3.3.1.4: Delete “3.3.2.3.3 Reliability Program - The contractor shall establish and Delete “Class 1“ and substitute “Class 1A“. and substitute: “3.3.3.1 Maintainability Program - The contractor shall establish and conduct a main
9、tainability program in accordance with MIL-STD-470 and MIL-STD-471. All maintenance actions shall be capable of being performed by a technician with a comprehensive ability level as follows: (a) (b) Technical Training - Navy, Class A technicians school (c) Experience - Two (2) years of technical exp
10、erience in Civilian Education - Hgh school graduate or equivalent. appropriate to the maintenance task. addition to technical training“. Page 4, paragraph 3.3.3.2.2.6: designators and/or part identification remain clear, part replacement is not impeded, and compliance with MIL-E-5400 is maintained“.
11、 Delete “a 2 mil thickness is permitted and substitute “a 30 mil thickness is permitted provided reference Page 4, paragraph 3.3.3.2.2.7: Delete “Government“ and substitute “procuring activity“ , Page 5, paragraph 3.3.3.2.2.9: Delete Page 5, paragraph 3.3.3.2.2.11: Change “Air Filters“ to “Service A
12、ccess“. Page 5, paragraphs 3.3.3.2.2.13 and 3.3.3.2.2.14: Page 5, paragraph 3,3.3.2,2.16: Delete Page 5, paragraph 3.3.3.2.3: Page 5, paragraph 3.3.3.2.3.1, last sentence: Page 6, paragraph 3.3.3.2.3.2: Delete Delete “/Manual Preparation“. Delete Delete “If feasible“. Page 6, second paragraph 3.3.3.
13、2.3.2, after “diagnostic“: Delete and substitute “interface specification“. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-1344 (1) hL m 77777Oh 0074575 4 m MIL- C -81344 (AS) AMENDMENT- 1 1 MAY 1968 Page 6, paragraph 3.3.3.2.3.3: Delete Pag
14、e 6, paragraph 3.3.3.2.4.1, line one: Delete “shall“ and substitute “should“. Page 6, paragraph 3.3.3.2.4.2: Add: “or a built-in voltmeter shall be provided“. Page 6, paragraph 3.3.3.2.4.3: Delete and substitute “3.3.3.2.4.3 Chassis Test Points - Test points and built-in test facilities shall be inc
15、luded in the design of the equipment. shall be chosen to provide a straightforward, logical step-by-step trouble shooting sequence, as well as provide a single end-to-end performance check“. Page 7, paragraph 3.3.3.2.4.4: Delete Page 7;paragraph 3.3.3.2.6: Test points Add “The meter shall indicate O
16、000 to 9999 hours“. Page 7, paragraphs 3.3.3.3, 3.3.3.3.1 and 3.3.3.3.1.1: Delete Page 8, paragraph 3.3.4.1: Delete “MIL-E-5400 and 3.5.3.9“ and substitute “WR-101, part I“. . .L Page 8, paragraph 3.3.4.2: Delete “MIL-W-5088“ and substitute “WR-101, part i“. Page 8, paragraph 3.3.6: Delete all after
17、 “WR-101, part I“ and substitute “A control plan will be prepared in accordance with WR-101, part I“. Delete all references to DOCUMENT and SUBMISSION DATE. Page 9, paragraph 3.3.8: Delete “115 5 1.0 V AC“ and substitute “115 2 3.0 V AC 400 cps 5 2%“. Page 9, paragraph 3.3.9.1: Page 9, paragraph 3.3
18、.11: Delete and substitute Delete “Curve IV“ and substitute “Curve I“. “3.3.11 Primary Input Power Requirements - The equipment shall meet all applicable requirements of MIL-STD-704 and shall give specified performance from the following power sources with characteristics as defined in MIL-STD-704 h
19、aving limits as defined herein. The equipment shall operate within the bounds of Limits 2 and 3-of Figure 3 of MIL-STD-704A except that 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-81344 CAS) AMENDMENT-1 1 MAY 1968 curve 3 of figure 3 shal
20、l not fall below 80 volts. Operational malfunction may occur when the input vsltage exceeds the above limits but remains within limits 1 and 4 of Figure 3 of MIL-STD-704A. However, no damage shall be suffered by the equipment and normal operation shall automatically be resumed upon return of the inp
21、ut voltage to levels within limits 2 and 3. The power required shall not exceed the following specified amounts: AC Power (three phase) 115/200V, 400 cps Category “B“, 185 VA“. Page 9, paragraph 3.3.11.1: Delete Page 9, paragraph 3.4.1; Make the following changes: First line: Delete “be designed to“
22、 Third line: Delete “11“ and substitute “12-14“ Sixth and Seventh lines: Ninth line: Delete “be designed to“ Delete “excited“ and substitute “type“ Page 10, paragraph 3.4.2, line three: Page 10, paragraph 3.4.3, line 1: Add: “output“; line 7: Delete “the least . significant bit“ and substitute “6 mi
23、nutes“. synchro to digital conversion shall be L.6 minutes“. Page 10, paragraph 3.4.4: Page 10, paragraph 3.4.5, line 2: Delete “excited“ and substitute “type“. Add “The accuracy of a Delete “3.3.11=11 and substitute “3.3.11“. Delete “A-NEW central digital“. Line 8: Delete “A-NEW digital“. Page 10,
24、paragraph 3.4.6, after “following“: inches“; height to “12.75 inches“ and “width“ to “10.75 inches“. Add “exclusive of mounting, control and connector protrusions.: Also, change length to “30.75 Page 10, last line: Delete Page 11, paragraph 3.5: Delete “A-NEW digital“. Page 11, paragraph 3.5.1, last
25、 line: Delete “11 bit“ and substitute “12-14 Bit“. Page 11, paragrph 3.5.1.1, line 9, aPter “5900 ohms“: -unbalance shall be no greater than a 2% unbalance when the converter presents Add “the unbalance may be greater than a 2% unbalance. However, the effect due to this a load of 5000 ohms“. 4 x _.
26、.* - QI Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- (3-81344 (AS) AMENDMENT-1 1 MAY 1968 Page 12 , paragraph 3.5.1.3: watts of rotor signal power“. Delete “On each connector- from a synchro transmitter“. Add “The converter shall be capable o
27、f supplying 40 Page 12, paragraph 3.5.1.4: Make the following changes: Delete “11 bit“ and substitute “12-14 bit“ Delete “per (4) and substitute “per (3)“ Delete “Output Data“ and substitute “Input Data“ Delete “per (7)“ and substitute “per (5)“ Page 13, paragraph 3.5.2.2, fifth sentence: Delete and
28、 substitute “Each having an impedance no less than 100 ohms, however, the total output power need not exceed that required to drive 16 440 ohm control transformers simultaneously“. output channel shall be capable of driving one control transformer Page 13, paragraph 3.5.2.3: Add “as per (6) of secti
29、on 3.5.2.1“. Page 13, paragraph 3.5.2.4: repeated“. Delete “Rate“ and substitute “Requirement“. Also add: “without the requirement that the digital data must be Page 13, paragraph 3.5.3.2: Delete “A-NEW Avionics“. Page 14, paragraph 3.5.3.8: Page 14, paragraph 3.5.3.9: Delete and substitute Delete f
30、irstsentence. c “3.5.3.9 Electrical Connectors - External - Except for input power, the electrical connectors provided shall conform to MIL-C-81511. connectors shall comply with MIL-C-26482“. Power Page 14, paragraph 3.5.3.9.1: Delete Page 15, paragraph 3.5.4.2 : Delete “A-NEW Avionics“. Page 15: Ad
31、d 3.5.6 Manual Operation - A means shall be provided to manually enter II an input binary word and a channel address. provided to visually monitor the output data request signal and a manual means of re-setting it. The output word shall also be monitored, with the exception of Test Sequence Identifi
32、cation Bits 22 through 27. A display shall also be 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- c -81344 (AS) AMENDMENT-1 1 MAY 1968 3.5.7 Mountine, - The equipment shall be suitable for hard mounting in the airplane“, Page 15, paragraph 4.
33、1.1: Delete (4), (5) and (6). Page U, paragraph 4.1.2: Delete Page 16, paragraph 4.2, first line: Page 16, paragraph 4.2.1: data shall be obtained under the extreme high temperature operating condition“. Page 16, paragraph 4.2.2: Delete “an“. Delete “ambient temperatures“ and substitute “ambient and
34、 surface temperatures of temperature critical parts. This Delete and substitute “4.2.2 Scope of Tests - Preproduction tests shall include all tests deemed necessary by the procuring activity to determine that the equipment meets all requirements of this specification and the contract. tests shall in
35、clude the following: Preproduction 1. Environmental Tests in accordance with MiL-T-5422. 2. Interference Tests in accordance with WR-101, Part 1. 3. Shakedown Test 4. Power Input Test 5. Reliability Test 6. Maintainability Test 7. Acceptance Tests“ Page 16: Add “4.2.2.1 Shakedown Test - Each preprod
36、uction equipment shall be subjected to a shakedown test of 100 continuous hours of failure-free operation. The tests shall be conducted in accordance with MIL-CTD-781, using test level E. Failures encountered in the test will be the subject of detailed failure analysis and corrective action. The cor
37、rective action loop shall document the assignable cause of failure and the action taken. actions shall be approved by the procuring activity prior to implementation. The test will then be started from time zero. The performance character- istics to be measured shall consist of a series of functional
38、 tests, exercising all portions of the equipment in a manner as stringent as that required during its ultimate application“. Page 17, paragraph 4.4: and substitute “the following: Corrective Add “Al1 inspection and test shall be under the supervision of the Government inepector“ . Delete “individual
39、 tests“ (1) Tndividual Test (2) Special Test 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL- C-81344 (AS) AMENDMENT-1 1 MAY 1968 (3) Sampling Test (4) Reliability Tests“ Page 18, paragraph 4.4.1.1, line 8: entitled “Shock“. “The mechanical sho
40、ck test -I1 . delete - 11 paragraph 4.5.7 cycle, phase 2“ and substitute “Test Level E Delete “paragraph 4.6.7 cycle, phase 2“ and substitute “Test Level E of MIL-STD-781“. Delete subparagraph Delete first sentence of second paragraph starting with In third sentence of second paragraph of MIL-STD-78
41、1“. Page 19, paragraph 4.4.1.3.2(1): Page 19: Add paragraph 4.4.2 Delete “Figure 3“ and substitute “Figure 5“. “4.4.2 Special Tests - Special tests shall be conducted for the purpose of checking the effect of any design or material change on the performance of the equipment and to assure adequate qu
42、ality control. selected for special tests may be selected from equipments previously subjected to the sampling or reliability assurance tests“. The equipment Page 19: Add paragraph 4.4.2.1 “4.4.2.1 Special Test Schedule - Selection of equipments for special tests shall be made as follows: (1) On an
43、early equipment after an engineering or material * change. (2) Whenever failure reports or other information indicate that additional tests are required. procuring activity)“. (This will be determined by the Page 19: Add paragraph 4.4.2.2 Scope of Tests - Special tests shall consist of such tests “4
44、.4.2.2 as approved by the geocuring activity. for the preproduction tests shall be used where applicable. applicable, the contractor shall prepare a test procedure and submit it to the procuring activity for approval prior to conducting the tests“. Page 19: Add paragraph 4.4.3 Test procedures previo
45、usly approved When not “4.4.3 Samplinp Tests - Equipments selected for sampling tests shall first have passed the individual tests. sampling tests by the Government inspector in accordance with the following : Equipments shall be selected for 7 Provided by IHSNot for ResaleNo reproduction or network
46、ing permitted without license from IHS-,-,-MIL-C-81344 (1) b1 = 977770b 0074600 4 MIL- Ca81344 (AS) AMENDMENT-1 1 MAY 1968 Quantity of Equipments Offered or Acceptance Quantity to be Selected for Sampling Test First 10 Next 50 Next 75 Next 100 O t 1 1 1 1 for each additional 200 or fraction thereof
47、Sampling Tests are not required when Reliability Assurance Tests are conducted. #NOTE: If by contract action the Initial Production Test is deleted, a Sample Test shall also be conducted on one equipment from the first 10 produced. Page 19: Add paragraph 4.4.3.1 “4.4.3.1 Scope of Tests - As a minimu
48、m, each equipment selected for sampling tests shall be subjected to the following tests: (1) Complete operational test at ambient room conditions, making all necessary measurements to assure that all applicable specification requirements have been met. . (2) Operational test at certain environmental
49、 conditions. * The conditions .may vary for each equipment tested and should be based on results of the preproduction, initial production, individual and special tests. (3) Manufacturing run-in test specified in 4.4.1.3 except that the test duration shall be 120 hours with no restriction on the number of failures. However, each failure shall be analyzed as to cause and remedial action necessary to reduce the poss
