1、-. - MIL-T-L404B 47 7777706 0256300 3 a 1. sc MILITARY SPECIFICATION TEST SET, ELECTRICAL CIRCUIT, GUIDED MISSILE LAUNCHER AND AIRCRAFT, AN/ASM-l49C This specification is approved for use by the Naval Air Systems Command, Department of the Navy and is available for use by all departments and agencie
2、s of the Department of Defense. E MIL-T-81404B (AS) 19 February 1985 SUPERSEDING 2 January 1968 MI L-T-81404A ( AS) 1.1 Scope. This specification establishes the design, performance, and acceptance requirements for the AN/ASM-149; Guided Missi1 e Launcher and Air- craft Electrical Circuit Test Set,
3、herein after referred to as the Test Set. 2. APPLICABLE DOCUMENTS 2.1 Government documents . 2.1.1 Specifications, standards, and handbooks . Un1 ess otherwise specified, the following specifications, standards and handbooks of the issue listed in that issue of Department of Defense Index of Specifi
4、cations and Standards (DoDISS) specified in the solicitation form a part of this specification to the extent specified herein. t I Beneficial conments (recomnendations, additions, deletions) and any pertinent data wnich may be of use In improving this document should be addressed to: Conmanding Offi
5、cer, Naval Air Engineering Center. Engineering Specifications and Standards Department (ESSD) Code 93, Lakehurst, NJ 08733, by using the self-addressed Standardization Document Improvement Proposal (M) Fonn 1426) appearing at the end of this document or by letter. 1 I FSC 4935 THIS DOCUMENT CONTAINS
6、 30 PAGES Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-L404B 47 7797706 0256303 5 MIL-T-81404B( AS) SPECIFICATIONS Military MIL-T-5422 Testi ng , Envi ronmenta 1 , Aircraft El ect roni c Equi pment MIL-1-6181 MIL-E-17555 MIL-T-18303 MIL-T-21
7、200 STANDARDS Military MIL-STD-454 MIL-STD-470 Interference Control Requirements, Ai rcra ft Equi pment Electronic and Electrical Equipment, Accessories, and Repair Parts: Packaging and Packing of Test Procedures; Preproduction and Inspec ti on, for Ai rcra ft El ectroni c Equi pment , Format for Te
8、st Equipment for use with Electronic and Electrical Equipment, General Specification for Standard Requirements for Electronic Equipment Maintainability Program Requirements for Systems and Equi pments Prediction MIL-STD-471 Ma i ntai na bi 1 i ty Demonstra ti ons MIL-STD-781 MIL-STD-1385 HANDBOOKS M
9、ilitary MIL-HDBK-472 Re1 iabil ity Tests Exponential Distribution Preclusion of Ordnance Hazards in El ectromagneti c Fiel ds ; Genera 1 Requirements for Mi 1 i ta ry Standardization Handbook, Maintai nabi 1 ity Predictions 2.1.2 Other Government documents, drawings, and publications. The following
10、other Government documents, drawings, and publications form a part of this specification to the extent specified herein. 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-81404B 47 m 7777906 0256302 7 m MIL-T-81404B( AS) BULLETINS ANA Bulletin
11、No. 400 Air Force-Navy Aeronautical Bulletin Electronic Equipment; Aircraft and Guided Missiles, Applicable Documents DRAWINGS Naval Air Systems Command DL 1017AS106 Test Set, Electrical Circuit Guided Missile Launcher and Aircraft AN/ASM-149 MANUALS Naval Air Systems Command NAVAIR 17-15ASM149B-1 M
12、aintenance Instruction (Intermediate Depot ) wi t h Ca 1 i brat i on In st ruc t i ons and IPB Missile, Launcher and Aircraft El ectri ca 1 Ci rcui t Test Set AN/ASM149B-1 Suppl ementa 1 Tec hni ca 1 Ma nua 1 (Confidential ) NAVAIR 17-15ASM14B-lA (Copies of specifications, standards, handbooks, draw
13、ings and pub1 ications required by manufacturers in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contract i ng off i Cer . ) 2.1.3 Order of precedence. of this specification and the references cited herein, the text of this spe
14、cification shall take precedence. In the event of a conflict between the text 3. REQUIREMENTS subjected to first article inspection (see 4.4 and 6.3). 3.1 First article. When specified (see 6.2.1), a sample shall be 3.2 Parts and materials. 3.2.1 Supplemental requirements. In the event that the cont
15、ractor proposes to alter the equipment design delineated by this specification and applicable drawings, the following supplemental requirements for the selection of parts and materials are applicable. Parts and materials selected for use in the equipment shall conform to the requirements of MIL-T-21
16、200. selected from those parts included in ANA Bulletin No. 400, unless the parts listed therein will not perform as required in the intended applications and environments specified herein, in which case 3.2.1 applies. 3.2.1.1 Basic conformance. Parts shall be 3 Provided by IHSNot for ResaleNo repro
17、duction or networking permitted without license from IHS-,-,-MIL-T-L404B 47 H 7777706 0256303 7 H MIL-T-81404B( AS) 3.2.1.2 Interchangeability. The test set shall meet the interchange- a bi 1 i ty requi rements of MIL-T-21200. The drawings 1 i sted in DL 1017AS100 shall be standard for measuring int
18、erchangeability of all applicable units, assemblies, subassemblies, and parts. 3.3 Design and construction. The test set shall be manufactured in accordance with DL 1017AS100, except insofar as errors of omission or commission in the data list may be incompatible with this specification. any case, i
19、t is a condition of final acceptance that the test sets manufactured meet all the performance requirements of this specification, and appropriate test documents. In 3.3.1 Reliability. 3.3.1.1 Operational stability. The test set shall operate with required performance, continuously or intermittently
20、for a period of at least 50 hours without the necessity for readjustment of any controls which are inaccessible to the operator during nomal use (see 4.4.1.2). of 10,000 hours with minimum servicing and replacement of parts. 3.3.1.2 Operating life. The test set shall have a total operating life 3.3.
21、1.3 Reliability in mean-time-between-failures (MTBFL. The test set shall have a minimum of 300 hours of mean (operating) time between failures when tested and accepted as specified in 4.5.3. 3.3.2 Radio interference. The generation of radio interference by the equipment and vulnerability of the test
22、 set to radio interference shall be within the limits of MIL-1-6181 except that broadband switching transient interference may exceed the limits as follows: a. Conducted 50 db above 1 microvolt/mhz b. Radiated below 25 mhz 30 db above 1 microvolt/mhz c. Radiated above 15 mhz 10 db above 1 microvolt/
23、mhz The test set shall operate within the specified tolerance limits specified in 3.5 while being operated in a radio frequency interference environment as specified in MIL-STD-l385.(see 4.6) establish normal performance characteristics under standard conditions and for making laboratory bench tests
24、. 3.3.3 Standard conditions. The following conditions shall be used to a Tempera ture Room ambient (30 5 10C) b. Altitude Normal ground c. Vibration None d. Humidity Room ambient e. Input power voltage 115 3: 1.5 volts, 400 3: 5 Hz ac 4 Provided by IHSNot for ResaleNo reproduction or networking perm
25、itted without license from IHS-,-,-MIL-T-81404B( AS) 3.3.4 Service conditions. The test set shall operate as required under any of the envi ronmental service condi ti ons or combi nati on of these condi ti ons as specified in MIL-T-21200 for class 2 equipment, except as modified herein. 3.3.4.1 Shoc
26、k. In addition to the shock requirements of MIL-T-21200, the test set when stored in its combination case, shall operate as specified in 3.5 after subjection to two 1/2 sine wave, 70g shocks, each of seven milliseconds duration applied upward along the vertical axis of the test equipment case. opera
27、tional requjrements specified in 3.5 are maintained. Physical damage to the equipment is permissible provided the 3.3.5 Warm-up time. The test set shall require no warm-up time under any 3.3.6 Primary input power. The test set shall be capable of specified of the service conditions specified in 3.3.
28、4. operation when supplied input power having characteristics specified in MIL-T-21200. The power required shall be of the following type and shall be not greater than the specified amount. AC Power, Single Phase, 115 volts, 380-420 Hz, 95 volt-amperes 3.3.7 Mean-time-to-repair (MTTR) The mean-time-
29、to-repair (MTTR) of the equpiment shall be not greater than 1.5 hours when replacing circuit modules, plug-ins, assemblies and parts that are intended for replacement at the intermediate level. 3.4 Performance. The performance of the test set shall be as specified below plus any and all performance
30、requirements of DL 1017AS100. Unless otherwise specified herein, these requirements shall apply under both standard and extreme service condi ti ons. When reduced performance requirements for service conditions are acceptable, such variations will be specified by the goverment. 3.5 Deta i 1 requi re
31、ments 3.5.1 Test Set, Electrical Circuit, Guided Missile Launcher and Aircraft AN/ASM-l49A. The test set shall be manufactured in accordance with DL 1017AS100 and shall meet the requirements stated thereon and in the following subparagraphs . a. All applied voltages, loads and measurements shall be
32、refer- enced to J101-A (ground) unless otherwise specified herein. b. When a requirement specifies that a voltage is applied to JlOlB, circuit breaker CB101 must be ON to obtain the required i ndi cat i on. 3.5.1.1 Electrical requirements. The test set shall meet the following electrical requirement
33、s: 3.5.1.1.1 Panel illumination. With 115 f 11.5 volts AC, 400 f 20 Hz applied to J101-B, the illuminating panel shall be illuminated in all positions of the TEST switch. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-T-L404B 49 m 9999906 025b30
34、5 2 m MI L-T-81404B (AS) 3.5.1.1.2 Interlock circuit. With 115 k 11.5 volts AC, 400 t 20 Hz applied through a 2600 2 260-ohm resistance to 3101-R, the maximum current into J101-R for TEST switch positions 4 and 16 (OFF) shall be 1 ma. For all other TEST switch positions, the minimum current into J10
35、1-R shall be 35 ma. 3.5.1.2.3 Headtone output. With 115 f 11.5 volts AC, 400 k 20 Hz applied to 3101-B, the headtone output shall be present at J101-U for TEST switch positions 5 through 10 unless otherwise specified herein. The headtone output shall be a pulse whose repetition rate has a period cor
36、responding to one of the four states listed below, where the nominal, minimum, and maximum values of T1, T4, T2 and T3, and T3 are specified in NAVAIR 17-15ASM149B-1A (CONFI- DENTIAL). For HEADTONE FUNCTION switch positions CYC SIDS and CYC SLOW the headtone output shall be cycling through the four
37、states in a .- 3-4-1-2-3-4- 1-2. sequence with a dwell time of 10 k 2 seconds in each state. Placing the HEADTONE FUNCTION switch in position NON CYC SIDS or NON CYC SLOW shall stop the cycling and hold the existing state. Cycling shall resume at the point of interruption when the HEADTONE FUNCTION
38、switch is returned to posi- tion CYC SIDS or CYC SLOW. characteristics with a resistive load of 220 $: 22 ohms applied to 3101-U: The headtone output pulse shall have the following TABLE I. Headtone output pulse characteristics. Peri od : State 1 T1 State 2 T4 State 3 T2 and T3 State 4 T3 Pulse Widt
39、h (at 50 percent of Pul se Amp1 i tude (peak) Pulse Rise Time 5 microseconds max. 180 f 10 microseconds t6.6 $: 1.2 volts peak amp1 i tude) 3.5.1.1.4 TEST switch position 1 (heater voltage). An input voltage of 104.0 $: 1.0 volts AC, 400 k 20 Hz applied to J101-B shall cause the QUALITY meter to ind
40、icate on the center of the line which determines the left edae of the triangle zone. When the input voltage at 5101-8 is increased to 126i5 k 2.0 volts AC, the QUALITY meter shall indicate on the center of the line which determines the right edge of the triangle zone. The current into J101-B shall b
41、e 0.60 k 0.20 amperes for any input voltage from 103.5 to 126.5 volts AC. 3.5.1.1.5 TEST switch position 2 (guidance,and control power onl. An input voltage of 104.0 2 1.0 volts AC, 400 f 20 Hz applied to 3101-C shall cause the QUALITY meter to indicate on the center of the line which determines the
42、 left edge of the triangle zone. When the input voltage at 3101-C is increased to 126.5 f 2.0 volts AC, the QUALITY meter shall indicate on the center of the line which determines the right edge of the triangle zone. The input resistance at J101-C shall be 230 f 15 ohms. 3.5.1.1.6 TEST switch positi
43、on 3 (guidance and control power off). An input voltage of 104.0 ?: 1.0 volts AC, 400 $: 20 Hz applied to J101-C shall cause the QUALITY meter to indicate on the center of the line which determines the left edge of the triangle zone. When the input voltage at J101-C is 6 Provided by IHSNot for Resal
44、eNo reproduction or networking permitted without license from IHS-,-,-MIL-T-L404B 47 m 7777706 0256306 4 m MI L-T-81404B ( AS ) increased to 126.5 2 2.0 volts AC, the QUALITY meter shall indicate on the center of the line which determines the right edge of the triangle zone. input resistance at J101
45、-C shall be 230 f: 15 ohms. The 3.5.1.1.7 TEST switch position 4 (heater-voltage interlock). An input voltaae of 104.0 f: 1.0 volts AC, 400 5 20 Hz applied to 5101-8 shall cause the QUALITY meter to indicate on the center of theline which determines the left edge of the triangle zone. When the input
46、 voltage at 5101-B is increased to 126.5 2 2.0 volts AC, the QUALITY meter shall indicate on the center of the line which determines the right edge of the triangle zone. The current into J101-B shall be 0.60 k 0.20 amperes for any input voltage from 103.5 to 126.5 volts AC. 3.5.1.1.8 TEST switch pos
47、ition 5 (target direction indioator boresight). With 115 f: 11.5 volts Ac, 400 I 20 Hz appl ied to J101-B, the QUALITY meter shall indicate in the circle zone. The headtone output shall be present as specified in 3.5.1.2.3 and the direction finder outputs shall be in accordance with table II. 3.5.1.
48、1.9 TEST switch position 6 (target direction indicator left). With 115 f: 11.5 volts AC, 400 f 20 Hz applied to 5101-B, the QUALITY meter shall indicate in the circle zone. fied in 3.5.1.2.3 and the direction finder outputs shall be in accordance with table II. The headtone output shall be present a
49、s speci- 3.5.1.1.10 TEST switch position 7 (target direction indication down). With 115 f 11.5 volts AC, 400 f: 20 Hz applied to 5101-8, the QUALITY meter shall indicate in the circle zone. The headtone output shall be present as specified in 3.5.1.2.3 and the direction finder outputs shall be in accordance with table II. 3.5.1.1.11 TEST switch position 8 (fire sequence). With 115 $: 11.5 volts AC, 400 k 20 Hz applied to 3101-8, the headtone output
