1、MEL- I -85 distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-I-Ci3A 58 7777906 Oq66q97 b MI L- I -85843A(AS) , SPECIFICATIONS (continued) MILITARY : MIL-P-116 Preservation, Methods of MIL-B-5087 Bonding, Electrical and Li
2、ghting Protection for Aerospace Systems MIL-E-5400 Electronic Equipment, Aerospace, General Spec- ification for MIL-T-5624 Turbine Fuel, Aviation Grades JP-4 and JP-5 MIL-P-7788 Panels, Information Integrally I1 1 uminated . MIL-L-7808 Lubricating Oil, Aircraft Turbine Engine, Synthetic Base NATO Co
3、de Number 0-148 MIL-E-17555 Electronic and Electrical Equipment Accessories and Repair Parts; Packaging and Packing of MIL-N-18307 MIL-H-83282 MIL-1-85845 Nomencl ature and Namepl ates for Aeronautical E 1 ectroni c and Acsoci ated Equi pmen t Hydraulic Fluid, Fire Resistance, Synthetic Hydrocarbon
4、Base, Aircraft NATO Code Number H-537 Intercommunication Sets, AN/AIC-14 and AN/AIC-l4A Master Interphone Control Panel C-2645D/AIC-l4A, General Specification for STANDARDS MI L I TA RY MI L-STD- 1 O9 Quality Assurance Terms and Definitions MIL-STD-129 MIL-STD-130 MI L - STD- 454 Marking for Shipmen
5、t and Storage Identification Marking of U.S. Military Property Standard General Requirements for Electronic E qu i pmen t MIL-STD-461 MIL-STD-462 Electromagnetic Emission and Suscepti bi 1 i ty Requirements for the Control of Electromagnetic Interference El ectromagneti c I n terf erence C harac ter
6、i s ti cs , Measurement of 2. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI L- I-85843A ( AS STANDARDS (continued) MILITARY (continued) MIL-STD-704 Electric Power, Aircraft Characteristics and UtilizatSon of MI L - ST D - 7 8 1 Re1 i abi 1 i ty
7、Tests; Exponential Di stri buti on MIL-STD-810 MI L - STD-882 Envi ronmenlal Test Methods and Engineering Gui del i nes System Safety Program for Systems and Associated Subsystems and Equipment, Requirements for MIL-STD-965 Parts Control Program M I L - STD - 4 5 6 6 2 Cal i bration Systems Requirem
8、ents 2.1.2 Other Government documents, drawings and publications. The fol 1 owi ng other Government documents, drawings and pub1 i cations form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DOCUMENTS NAVAL AIR SYST
9、EMS COMMAND AD-1115 Electromagnetic Compati bi 1 i ty Design Gui de for Avionics and Related Ground Support Equipment DRAW I NGS NAVAL AIR SYSTEMS COMMAND DL 1794AS5000 Panel, Interphone Control, Radio/Transmi tter, (Unless otherwise indicated, copies of federal and military specifications, standard
10、s and handbooks are avai 1 ab1 e from the Standardization Document Order Desk, 700 Robbins Avenue, Building No. 4, Section D, Philadelphia, PA C-4949/AIC-I4A 191 11-5094. ) 2.2 Order of precedence. In the event of a conflict between the text of this document and the references cited herein (except f
11、or the associated detail specifications, specification sheets or MS standards), the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulations unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 Item description. The C-4949 sh
12、all be a passive interphone conrol unit. An outline drawing for C-4949 is provided on Figure 1. It shall expand the basic capabi 1 i ty of the Active Interphone Control Panel C-2645D/AIC-l4A (see MIL-1-85845) by providing the following: 3 Provided by IHSNot for ResaleNo reproduction or networking pe
13、rmitted without license from IHS-,-,-m MIL-I-85843A 58 m 999990b 04bb501 O m MS 31 1 2E20-41PX .37 ZQ i/ All dimensions - Tolerances on d .+0.03 inches un s peci fi ed . MS31 I2E20-41P 4. 8 4 MAX. re in inches. mensions are ess otherwise o- u I I .o10 3 +, a02 1.8755 .O05 FIGURE 1 C-4949 outline. MO
14、DEL 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-samp a. b. C. d. e. f. ?* h. i. MIt-I-85843A( AS Selection of one or a combination of nine radio receiver inputs. Selection of any one uf five radio- transmitters. Manual and external control to e
15、nable and disable circuits for incoming interphone signals. Provisions for radio volume corrtro? of mixed radio receiver signal c. FaciTities for emergency operation of three emergency receivers. Vi sua1 indication of keyed transmitters. Mixing and isolation of keyed transmitters. Provisions for vis
16、ua Mixing and isolation signal s. i ncii cat resi stor on of disabled ICs condition. bus for incomi ny interphone 3.2 First article. When specified in the contract or purchase order, a e shall be subjected to first article inspection (see 4.2 and 6.3). 3.3 Parts and materials. 3,3,1 Nonstandard part
17、s and material approval. Approval for the use of nonstandard parts and materials shall be obtained by the contractor as spec- ified in MIL-STD-965, Procedure I. 3.3.2 Supplemental requirements. In the event that the contractor proposes to alter the materials or piece parts of the C-4949 specified he
18、rein, the supplemental requirements of 3.3.2.1 through 3.3.2.3 shall be applicable for the selection of parts and materials. C-4949 shall be in accordance with MIL-E-5400, unless the parts or materials listed therein will not perform adequately in the intended applicatfons and environments specified
19、 herein. Nhen any parts and materi al s not in acc-ordance with MIL-E-5400 must be used, refer to 3.3.1. 3.3.2.1 Basic conformance. Parts and materials selected for use in the 3.3.2.2 Toxic and corrosive fumes. The materials, as used in the manu- facture of the C-4949 and under the conditions therei
20、n, shall not liberate deleterious or corrosive fumes. This shall include fungicidal agents that are used. 3.3.2.3 Recycled, virgin and reclaimed materials. Except when intended use of the C-4949 will be jeopardized by the use of reclaimed or recycled materials, these materials shall be used to the m
21、aximum extent possible. 3.4 Design and construction. Design and construction of the C-4949 shall conform with MIL-E-5400,.DL 1794AS5000 and as specified herein. condition of final acceptance that the C-4949 manufactured shall meet all the It is a 5 Provided by IHSNot for ResaleNo reproduction or net
22、working permitted without license from IHS-,-,-I - MIL-I-85843A 58 a 7979706 0466503 4 desi,gn, construction and workmanship requirements of this specification and appl icabl e acceptance test documents. 3.4.1 Reliability. 3.4.1.1 Reliability in mean-time-between-failure (MTBF). The lower test MTBF
23、O1 for the C-4949 shall be not less than 1000 hours. 3.4.1.2 Operating life, The C-4949 shall have a minimum total operating life of not less than 10,000 hours when the maintenance delineated in the maintenance plan is performed in accordance with approved procedures. C-4949s and al 1 rep1 aceabl e
24、assembl ies, subassembl ies and parts of the C-4949s in accordance with MIL-E-5400. Al 1 parts having the same manufacturers part number shall be directly and completely interchangeable with each other with respect to installation and performance, without need for mechanical or electrical matching,
25、alignment or adjustment of parts or circuitry. 3.4.2 Interchangeability. Interchangeability shall exist between al 1 3.4.3 Transportabil ity. The C-4949 shall be transportable by air, rail, truck or ship when packaged as specified in Section 5. 3.4.4 Dimensions. The dimensions of the C-4949 shall be
26、 as listed below with a tolerance - tO.03 inches (see Figure 1). a. Height 2.23 - t .O2 inches (at front plate). b. Width 5.73 - t .O2 inches (at front plate). c. Depth 4.38 inches (beyond front plate, not including connector and control protrusions). 3.4.5 Weight. The weight of the C-4949 shall be
27、not greater than 2.0 _. pounds. 3.4.6 Color. The color of the C-4949 shall be as identified in DL 1794AS500r 3.4.7 Connectors. The input and output connectors shall be as identi- fied in DL 1794AS5000. 3.4.8 Nameplates and identification marking. Serial number assignment and nameplate approval shall
28、 be in accordance with MIL-N-18307. Identifica- tion marking shall be in accordance with MIL-STD-130. The following informa- tion shall be placed on the nameplate: a. Unit nomenclature (R/T Interphone Control Panel 1. b. Unit designator (C-4949/AIC-l4A). c. Contract number. d. Manufacturers code num
29、ber. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MI t-I -85843A (AS) e. Equipment drawing number (30003 - 1794AS500). f. . TechnicaT manual identification. g. h. Procuring activity (Department of the Navy - Naval Air Systems Command). Serial nu
30、mber specified irr the contract shall be stamped on the e-4949. 3.4.8.1 Serial numbers. Serial numbers shall be assigned in accordance with MIL-N-1830/ for he C-4949s under contract or purchase order. The contractor shall serialize sequentially all C-4949s which are delivered under Lhe contract. 3.4
31、.9 Safety. The contractor shall ensure that safety requirements are in accordance with MIL-STD-882. 3.4.10 Standard conditions. The following conditions shall be used to establish normal performance characteristics under standard conditions and for making laboratory bench tests. Room ambient (25 +lO
32、C). a. Temperature - b. Altitude Normal ground (O - 5000 feet). C. Vibration None. d. Humidity Normal ambient up to 90 percent relative humi di ty . e. Input power 28 volts dc, 20 amperes. 3.4,ll Service conditions. The C-4949 shall operate as required under any of the environmental service conditio
33、ns, or any probable combination thgreof, as specified in MIL-E-5400 for.Class 2 equipment, except as modified herein. 3.4.11.1 Altitude. The C-4949 shall operate as required at any pressure up to 50,000 feet. 3.4.11.2 Fungus. The C-4949 shall withstand exposure to fungal growth. 3.4.11.3 Fluids. The
34、 C-4949 shall be unaffected by contact with the Overspraying of the C-4949 shall be prohibited. fol 1 owing fl uids: a. JP-4 and JP-5 fuels (see MIL-T-5624). b. Hydraulic fluids (see MIL-H-83282). 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MI
35、L-I-85843A 58 777770b 04bb505 m c. Lubricat d. Coolants ng oil (seeMIL-L-7808). of the fluorocarbon, silicone, silicate ester and glycol families. 3.5.12 Warm-up time. The time required for the C-4949 to warm up prior to providing voice communications shall be not greater than 10 seconds under stand
36、ard conditions and 30 seconds under service conditions. The time required for the C-4949 to warm up in order to meet the performance parameters specified herein shall be. not greater than 2 minutes under standard conditions and 4 minutes under service conditions. of MIL-STD-704 and shall meet specif
37、ied performance requirements when 3.4.13 Input power. The C-4949 shall meet all applicable requirements energized from a power source having characteristics and limits speci MIL-STD-704 for 28 volts dc. 3.4.13.1 Steady state power. 3.4.13.1.1 Normal steady state. The C-4949 shall meet the requ of MI
38、L-STD-704 for normal steady state dc input power. ied in rements 3.4.13.1.2 Emergency steady state. The C-4949 shall meet the require- 3.4.13.2 Transient. 3.4.13.2.1 Voltage surge, The C-4949 shall meet the requirements of MIL-STD-704 for voltage surges. The C-4949 shall not be failed for degraded p
39、erformance during the vol tage surges if the C-4949 returns to normal opera- tion without damage after voltage surges pass. ments of MIL-STD-/04 for emergency steady state dc input power. 3.4.13.3 Overvoltage, undervol tage and power interruption. 3.4.13.3.1 Overvolta e. The C-4949 shall meet the re
40、quirements of MIL-STD-704 for 04 The C-4949 shall not be failed for degraded performance during overvoltage exposure if the C-4949 returns to normal opera- tion without damage after the exposure. 3.4.13.3.2 Undervolta e. The C-4949 shall meet the requirement of MIL-STD-704 for ud The C-4949 shall no
41、t be failed for degraded performance during undervoltage exposure if the C-4949 returns to normal operation without damage after the exposure. of MIL-STD-704 for power interruption. degraded performance during power interruption if the C-4949 returns to normal operation without damage after the powe
42、r returns to nominal level 3.4.13.3.3 Power interruption. The C-4949 shall meet the requirements The C-4949 shall not be failed for 3.4.14 Electromagnetic interference (EMI). The C-4949 shal the reauirements of MIL-STD-461, Class Alb equipment, as modified comply with herein. operati ny These Fequir
43、ements shall be met- in al 1 operating modes and at al 1 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-8!i843A( AS) frequencies of the C-4949 at the standard conditions specified in 3.4-10. EM1 testing shall be accompl ished in accordance wit
44、h the procedures of MIL-STD-462 to demonstrate compliance with requirements of MIL-STD-461. EM1 design guide- 1 ines shall be in accordance with AD-1 115. 3.4.14.1 Conductad and radiated emissions. 3.4J4.1.1 Conducted emission, power and interconnecting leads. Con- ducted emissions from the C-4949 p
45、ower and interconnecting leads shall be within the 1 imi ts of MIL-STD-461 Requirement CE03. 3.4.14.1.2 Conducted emissions, power leads, spikes, time domain. Con- ducted emissions from the C-4949 Dower leads shall be within the limits of MIL-STD-461, Requirement CE07 3.4.14.1.3 Radiated emissions e
46、lectric field 14 kHz to 10 GHz. Radiated emissions from the C-4949 , electric field, between 14 kH z and 10 Gtl z, shall be within the limits of MIL-STD-461, Requirement RE02. Above 30 MHz, the limits shall be met for both horizontally and vertically polarized waves. 3.4.14.2 Conducted and radiated
47、susceptibil ty. 3.4.14.2.1 Conducted susceptibility, power leads, 30 Hz to 50 kHz. The C-4949 shall not exhibit any of the indications of susceptibility specified in 3.4.14.3 when exposed to electromagnetic energy injected onto its power leads less than or equal to the values of MIL-STD-461 Requirem
48、ent CSO1. 3.4.14.2.2 Conducted susceptibility, power leads, 50 kHz to 400 MHz. The C-4949 shall not exhibit any of the indications of susceptibility spec- ified in 3.4.14.3 when exposed to 1 volt from a 50-ohm source across a cal i brati ng resi stor as specified i n MIL-STD-461, Requirement CS02. T
49、his requirement shall apply to all neutrals and grounds whether or not they are internally returned to chassis ground. 3.4.14.2.3 Conducted susceptibility, spikes, power leads. The C-4949 shall not exhibit any of the indications of susceptibility specified in 3.4.14.3 when spikes each having the waveform specified in MIL-STD-461 , Requirement CSO6, are applied to the ac and dc power input leads. 3.4.14.2
