1、i MIL-C-8545b 5 I 9999906 037q732 2 I* MILITARY SPECIFICATION CONVERTER GROUP, llENHANCED1l CIGITAL SCAN OD- (-) /APQ- 1 26 (VI MIL-C-85456 (AS) 22 February 1983 This specification is approved for use by the Naval Air Systems Command, Department of the Navy, and is available for use by all Departmen
2、ts and Agencies of the Department of Defense. 1. SCOPE , 1.1 Scope - This specification establishes the design, performance and test requirements for the llEnhancedll Digital Scan Converter Group (EDSCG) for use with the AN/APQ-I26(V) Forward Looking Radar (FLR) in A-7D/E/K and TA- 7C aircraft. 1.2
3、should be identical to one of the following Indicator Groups, each differentiated by its peculiar Cathode Ray Tube Display (CRTD) complement. 1.2.1 A-7E EDSCG, consists of the following: Classification - The EDSCG consists of the following items and Indicator Group OD-( - )/APQ-I26(V), herein referr
4、ed to as the Converter, Signal Data CV-3779/APQ-126 (VI (SDC) Indicator, Intratarget Data IP-1418/APQ-I26(V) (Forward CRTD) 1.2.2 TA-7C EDSCG, consists of the following: Indicator Group OD-( - )/APQ-l26(V), herein referred to as the Converter, Signal Data CV-3779/APQ-l26(V) (SDC) Indicator, Intratar
5、get Data IP-1418/APQ-l26(V) (Forward CRTD) Indicator, Intratarget Data IP-(-)/APQ-l26(V) (Aft CRTD) Indicator Group OD-186/APQ-126 (VI, herein referred to as the 1.2.3 A-7D EDSCG, consists of the following: Converter, Signal Data CV-3779/APQ-126 (V) (SDC) Indicator, Intratarget Data IP-1443/APQ-I26(
6、V) (Forward CRTD) Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Commanding Officer, Naval Air Engineering Center, Engineering Specifications and Standards Department (ESSD) Code 93, Lakehurst,
7、 NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. I FSC 5841 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85456 58 W 999790b 0374733 4 = MI
8、L-C-85456 ( S) 1.2.4 A-7K EDSCG, consists of the following: Indicator Group OD-( - )/APQ-I26(V), herein referred to as the Converter, Signal Data CV-3779/APQ-I26(V) (SDC) Indicator, Intratarget Data IP-1443/APQ-l26(V) (Forward CRTD) Indicator, Intratarget Data IP-( - )/APQ-I26(V) (Aft CRTD) 1.3 the
9、associated equipment listed in Table IV (See 6.3). Associated equipment - The indicator group should operate with 2. 2.1 2.1. APPLICABLE DOCUMENTS Government documents Specifications and standards - Unless otherwise specified, the following specifications and standards of the issue listed in that is
10、sue of the Department of Defense Index of Specifications and Standards (DODISS) specified in the solicitation form a part of this specification to the extent specified herein. SPECIFICATIONS MILITARY MIL-W-5088 MIL-E-5400 MIL -T -54 22 MIL-P-7788 MIL-M-7793 MIL-1-8500 MIL-R-10509 MIL-E-1 9600 MIL-M-
11、385 1 O MIL-C-38999 MIL-H-46855 MIL-R-55 182 Wiring, Aerospace Vehicle Electronic Equipment, Airborne, General Specification for Testing, Environmental, Aircraft Electronic Equipment Panels, Information, Integrally Illuminated Meter, Time Totalizing Interchangeability and Replaceability of Component
12、 Parts for Aircraft and Missiles Resistors, Fixed Film (High Stabilty), General Spec if i ca t i on for Electronic Modules, Aircraft, General Requirements for Microcircuits, General Specification for Connnector, Electrical, Circular, Miniature, High Density, Quick Disconnect (Bayonet, Threaded, and
13、Breech Coupling) , Environment Resistant, Removable Crimp and Hermetic Solder Contacts, General Specification for Human Engineering Requirements for Military System, Equipment and Facilities Resistors, Fixed Film, Established Reliability, General Specification for 2 -, o Provided by IHSNot for Resal
14、eNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85456 58 W 9999906 0374934 6 W MIL-C-85456 (AS) MIL -G-8 1 1 32 MIL-F-81898 Guidance Section, Guided Weapon MK39 MOD 2 Forward Looking Radar Set, AN/APQ-l26(V) NAVAL AIR SYSTEM COMMAND AS-1720 STANDARDS FEDERAL FE D-ST D-3 M
15、ILITARY MIL ST D- 1 2 9 MIL-STD- i 30 MILSTD-2 1 O MIL-ST D-454 MILSTD-46 1 MIL ST D- 4 6 2 MILSTD-704 MILSTD-785 MILSTD-794 MIL -ST D-9 65 MS25237-327 Converter Signal Conditioner Colors, Aeronautical Lighting Marking for Shipment and Storage Identification Marking of U.S. Military Property Climati
16、c Extremes for Military Equipment Standard General Requirements for Electronic Equipment Electromagnetic Interference Characteristics, Requirement for Equipment Electromagnetic Interference Characteristics, Measurement of Electric Power, Aircraft, Characteristics, and Utilization of Reliability Prog
17、ram for Systems and Equipment Development and Production Parts and Equipment, Procedures for Packaging and Packing Parts Control Program Lamps, Incandescent, Single Contact Midget Flanged Base (T-i-3/4 Bulb) (Copies of specifications, standards, handbooks, drawings, and publications required by manu
18、facturers in connection with specific acquisitlon functions should be obtained from the contracting activity or as directed by the contracting officer .I 2.2 Other publications - The following document forms a part of this specification to the extent specified herein. The issue of the document which
19、 is indicated as WD adopted shall be the issue listed in the current DODISS and the supplement thereto, if applicable. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-S456 58 W 9777706 0174735 = MIL-C-85456 (AS) EIA-STD RS-343-A Electrical Perf
20、ormance Standards for High Resolution Monochrome Circuit Television Camera (Application for copies should be addressed to the Electronic Industries Association, 2001 Eye Street, N .W., Washington, DC 20006.) 2.3 text of this specification and the references cited herein, the text of this specificati
21、on shall take precedence. Order of Precedence - In the event of a conflict between the 3. REQUIREMENTS 3.1 First article inspection - This specification provides for first article inspection. 3.1 e1 subjected to first article inspection (see 4.3.1 and 6.4). First article - When specified (see 6.21,
22、a sample shall be 3 -2 fulfillment of major design objectives shall be the prime consideration. so doing, the following shall govern: 3.2.1 Parts selection - Standard parts (FIS, AN, and MIL) shall be used to the maximum extent possible. Parts selection for electronic equipment shall be in accordanc
23、e with MILSTD-965. In the selection of electronic parts, preference shall be given to the use of TX and ER parts. Circuits not in accordance with MIL-M-38510 may be used provided the screening is equivalent to that required by MIL-M-38510. Parts which are not in accor- dance with MIL-M-38510 shall h
24、ave their screening procedures reviewed concur- rent with non-standard parts approval request. All standard parts shall be identified on drawings and data lists by the standard part number. parts requiring qualification, but not covered by a government Qualified Products List (QPL) shall not be used
25、. Parts and material - In the selection of parts and materials, In Integrated Standard 3.2.2 Parts screenina - All electronic, electrical, and electro- mechanical parts shall have been screened to special screening specifications; e.g., ER, TX, MIL-M-38510 or their equivalents, prior to installation
26、 into their respective assemblies. Where possible, candidate parts shall be selected from device types available to existing screening specification. Circuit matched llselect-on-testll components shall not be used in the design of this equipment. 3.2.3 Magnetic materials - In the design of the CRTDs
27、, the use of materials which easily become magnetized shall be held to a minimum consistent with the utilization of existing components. 3.2.4 of nonstandard parts and materials (including electron tubes, transistor, and diodes) other than microelectronic devices shall be obtained as outlined in MIL
28、-E-5400 for the appropriate equipment classification specified in 3.3. Nonstandard parts and material approval - Approval for the use Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85456 5B 7779706 017Li936 T = MIL-C-85456 (AS) 3.3 apply to th
29、e design, construction, and workmanship with the exceptions and additions specified herein. The EDSCG equipment is classified as follows: Design and construction - The requirements of MIL-E-5400 shall EQUIPMENT CLASS CATEGORY OPE RAT ION a. Signal Data Converter 2 III Continuous (SDC) b. Forward CRT
30、D C. Aft CRTD 1 III Continuous and Intermittent I III Continuous and Intermittent 3.3.1 selection of parts. The lightest practical design capable of the required performance shall be used. not greater than 80 pounds (36.3 Kg). EDSCG shall be not greater than 110 pounds (49.9 Kg). Total weight - Weig
31、ht shall be a primary consideration in the Maximum weight of the A-7D or A-7E EDSCG shall be Maximum weight of the TA-7C or the A-7K 3.3-2 Reliability - The contractor shall establish and maintain an effective reliability program in accordance with the requirements of MIL-STD- 785. (See 4.4.2) 3.3.2
32、.1 Operational stability - The EDSCG shall operate as required for a minimum of 100 hours in a temperature environment as specified herein, continuously or intermittently, without the necessity for adjustment of any controls which are inaccessible during flight. 3.3.2.2 Operating life - The EDSCG sh
33、all have as a minimum a service life of 4,000 hours when operated in any operational mode or combination of modes and under the environmental conditions specified herein with minimal service. 3 s3.2.3 after 5 years storage and transit in accordance with MIL-STD-210. CRT degeneration is allowed after
34、 18 months of continuous non-operating storage. Storage - The equipment shall be designed to operate as required 3.3.2.4 Reliability in mean time between failure (MTBF) - The TA-7C or A-7K EDSCG shall have a combined MTBF of 400 hours. The A-7D or A-7E EDSCG shall have a combined MTBF Of 500 hours.
35、3.3.2.5 Time totalizing meter - Each unit of the EDSCG shall contain a time totalizing meter in accordance with MIL-M-7793. 3.3.3 Cabling and connections - In addition to the following require- ments for unit interface to the aircraft, the requirements of 3.3.7.3.3 shall also apply for purposes of t
36、est equipment interface. the requirements of 3.3.7.1.1 shall apply. For internal connection, 3.3.3.1 Connectors - All connectors of the EDSCG intended for unit level testing purposes or interconnection between units of the EDSCG or other air- craft systems shall be in accordance with MIL-C-38999. Th
37、e design of con- -. 5 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-85456 58 m 9977706 0374937 3 m MIL-C-85456 (As) nectors shall be such that reverse or improper assembly, mating, or installation is impossible. 3 e3 -3 -2 Interconnecting c
38、abling - The EDSCG shall be capable of required operation using external wiring in accordance with the applicable requirements of MIL-W-5088. The external wiring shall be unshielded, except that a minimum number of the individual wires may be shielded when demonstrated as necessary to meet interfere
39、nce control requirements and provided the assembly of the cable to its plugs may be easily accomplished. portion of the connectors attached to the cables shall not be supplied as part of the EDSCG. Assembly (WRA) connectors shall mate are listed in Table I. The EDSCG shall be electrically compatible
40、 with existing A-7D and A-7K aircraft wiring without change and shall be compatible with existing A-7E aircraft wiring except for deactivation of existing Auto-Tilt wiring. The EDSCG shall be compatible with existing TA-7C aircraft wiring without change except for the additional wiring required for
41、the Auto-Tilt and Protection Interface capabilities. External cables and that External connectors with which the EDSCG Weapon Replaceable 3.3.4 CRTD units shall be in accordance with MIL-P-7788 for Type V panels. for A-7E and TA-TC CRTD units shall be Class 1-R; those for A-7D and A-7K CRTD units sh
42、all be Class 1-W. Integral lighting - The embedded integral lighting of the EDSCG Panels 3.3.5 Interchangeability - The EDSCG shall meet the interchangeability requirements of MIL-E-5400. 3.3.5.1 Retrofit interchanaeability - The EDSCG units shall be physically interchangeable with other comparable
43、units of the AN/APQ-l26(V) FLR display subsystem in prior use as specified in Table II. Operational interchangeability shall be as defined in 3.4.2.2. 3.3.5.2 EDSCG interchangeability - In addition to the requirements of MIL-E-5400, all contractor parts having the same part number shall be interchan
44、geable with each other with respect to installation, performance, and testing. Replacement of a WRA in the system (at Organizational level) shall be possible with no adjustment, alignment or harmonization of the replaced WRA or any other system component required (other than controls accessible to t
45、he equipment operator in flight). This capability shall be demonstrated on prototype models prior to production and on production units at the procuring activitys request. c Parts interchangeability shall be in accordance with MIL-1-8500. 3.3.6 such that its performance meets the EM1 susceptibility
46、and emission require- ments of MIL-STD-461, Notice 3 for Class Al equipment. Any equipment utilizing relays shall have suppression devices incorporated at the relay coils unless otherwise specified. Electromagnetic interference - The design of the EDSCG shall be 3.3.7 Maintainability - Contractors m
47、aintainability efforts initiated during the predesign phase shall continue through the prototype phase. This continuing design liaison and guidance is performed to insure considerations of maintenance concepts, level of repair, maintainability requirement achieve- ment and objectives. Procuring acti
48、vity personnel will visit the contractors facility as necessary to evaluate maintainability design conformance. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-8545b 58 m 7797706 0374738 3 MIL-C-85456 (AS) 3.3 -7 -1 MILSTD-454, the requiremen
49、ts specified in 3.3.7.1.1 through 3.3.7.2.2 shall apply to the EDSCG. Construction - In addition to the applicable requirements of 3.3.7.1.1 Modular construction - Modular type construction shall be used . to provide functionally oriented WRAs and SRAS (Shop Replaceable Assembly). pertaining to maintainability, accessibility, and interchangeabilty shall be in accordance with MIL-E-5400 and MIL-H-46855. Mechanical subassemblies shall be modularized to the ext
