1、 INCH-POUND MIL-DTL-32086(AS) 9 April 2004 DETAIL SPECIFICATION INTERCOM, PORTABLE This specification is approved for use by the Naval Air Systems Command, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE. 1.1 Scope. This specification establishes the t
2、echnical requirements for a body-worn, 9-volt D.C. battery-powered, portable intercom to be used with, and form part of, a Chemical, Biological, Radiological (CBR) protective assembly (see figure 1). The intercom described in this specification is designed for use with current and future military ai
3、rborne communication systems. 2. APPLICABLE DOCUMENTS 2.1 General. The documents listed in this section are specified in sections 3 and 4 of this specification. This section does not include documents cited in other sections of this specification or recommended for additional information or as examp
4、les. While every effort has been made to ensure the completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in sections 3 and 4 of this specification, whether or not they are listed. 2.2 Government documents. Comments, suggestions, or
5、 questions on this document should be addressed to: Commander, Naval Air Warfare Center Aircraft Division, Code 414100B120-3, Highway 547, Lakehurst, NJ, 08733-5100 or emailed to Tom.Omaranavy.mil . Since contact information can change, you may want to verify the currency of this address information
6、 using the ASSIST Online database at www.dodssp.daps.mil. AMSC N/A FSC 5895Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32086(AS) 2 2.2.1 Specifications, standards, and handbooks. The following specifications, standards and handbooks form
7、a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. DEPARTMENT OF DEFENSE SPECIFICATIONS MIL-DTL-22442/7 Cable Assembly, Aircraft Audio Connector TJ-106 DEPARTMENT OF DEFENSE STANDARDS MIL-
8、STD-202 - Test Methods for Electronic and Electrical Component Parts MIL-STD810 - Environmental Engineering Considerations and Laboratory Tests MIL-STD-889 - Dissimilar Metals DEPARTMENT OF DEFENSE HANDBOOKS MIL-HDBK-217 - Reliability Prediction of Electronic Equipment (Copies of these documents are
9、 available on line at http:/assist.daps.dla.mil/quicksearch/ or www.dodssp.daps.mil or from the Standardization Order Desk, 700 Robins Avenue, Building 4D, Philadelphia, PA 19111-5049.) 2.2.2 Other Government documents, drawings, and publication. The following other Government documents, drawings an
10、d publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract. NAVAL AIR SYSTEMS COMMAND NAVAIR AD 1115 - Electromagnetic Compatibility Design Guide for Avionics and Related Ground
11、 Support Equipment NAVAIR 13-1-6.7-1 - Aviation-Crew Systems Aircrew Personnel Protective Equipment (Aircrew/Passenger Equipment) (Unless otherwise indicated, copies of the above publications are available from the Commander, Naval Air Systems Command, Code AIR-7.2.5.3, Building 407, Naval Air Stati
12、on, Patuxent River, MD 20670.) Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32086(AS) 3 NAVSEA TE-00-AB-GTP-010 - Part Stress Derating (Unless otherwise indicated, a copy of the above publication is available from the Commander, Naval Avia
13、tion Supply Office, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.) 2.3 Non-Government publications. The following documents form a part of this specification to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation
14、or contract. THE INSTITUTE FOR INTERCONNECTING AND PACKAGING ELECTRONIC CIRCUITS (IPC, INC.) J-STD-001 - Requirements for Soldered Electrical and Electronic Assemblies (Applications for a copy should be addressed to the Institute for Interconnecting and Packaging Electronic Circuits, 7380 North Linc
15、oln Avenue, Lincolnwood, IL 60062-6135 or http:/www.ipc.org.) 2.4 Order of precedence. In the event of a conflict between the text of this document and the references cited herein, the text of this document takes precedence. Nothing in this document, however, supersedes applicable laws and regulatio
16、ns unless a specific exemption has been obtained. 3. REQUIREMENTS 3.1 First article inspection. When specified (see 6.2), a sample shall be subjected to first article inspection in accordance with 4.3. 3.2 Component parts. The intercom is comprised of a self-contained amplifier box with an internal
17、9-volt power source. The intercom shall provide the power and the electronics necessary to transfer audio signal from the intercom to either the headset or integral speaker. The intercom assembly shall be supplied with the following component parts: 1 Intercommunication Unit 1 Battery, 9V, Alkaline
18、3.3 Weight. The weight of the intercom (with battery) shall be not greater than 24 ounces. 3.4 Color. The intercom shall be colored black. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32086(AS) 4 3.5 Design. The design of the intercom shal
19、l meet the mechanical construction, electrical characteristics, and acoustical performance requirements of this specification. The intercom shall attach to components of the aircrew ensemble without modification of the garments. The intercom shall be for use both indoors and outdoors and while the u
20、ser is donning and doffing his chemical, biological, radiological (CBR) protective ensemble. The intercommunication unit shall provide the user with listening and broadcasting capabilities to his immediate surroundings while leaving both hands free. Battery replacement shall be readily effected with
21、 CBR-gloved hands. 3.5.1 Dissimilar metals. Unless required, dissimilar metals as defined in MIL-STD-889 shall not be used in direct contact with each other. 3.5.2 Reverse polarity. The intercom shall not be damaged by the inadvertent reversal of the battery polarity. 3.5.3 Case. The case shall be s
22、mooth and contoured to prevent both the accumulations of liquid contaminants and abrasives or damage to other components of the aircrew ensemble. All corners shall be radiused and projections shall be avoided. 3.5.4 Battery housing. The battery housing shall be isolated and sealed from the environme
23、nt and the other internal components of the intercom to prevent damage from battery leakage or venting. 3.5.5 Snap hook. The snap hook attaches to the case to allow connection to body-worn equipment. 3.5.6 Switch/Modes. 3.5.6.1 Switch. A switch shall be accessible and operable by the wearer utilizin
24、g a CBR-gloved hand. The switch shall enable the wearer to select the operational modes. 3.5.6.2 Operational modes. The intercom shall have the operational modes listed below (see figure 2). Off - Communication between two operator positions with the intercom switched off. Listen - Communication bet
25、ween the two operator positions together with the reception of signals from the intercom (operating in the microphone mode) at both headset positions. Talk/Listen (Full Duplex) - Speech through the intercom (operating in the loudspeaker mode) from both operator positions. Provided by IHSNot for Resa
26、leNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32086(AS) 5 3.5.6.3 Mode markings. Switch position modes shall be marked with ink or a decal. 3.5.9 Battery. One 9-volt alkaline battery shall be used to supply electrical power for the intercom. The operational life of t
27、he battery shall be not less than six hours of continuous operation with a listen only-to-talk/listen ratio of 9:1. 3.5.10 Plugs and connectors/interface. 3.5.10.1 Plugs and connectors. One M22442/7-1 connector shall be located on the intercom via a 5.5 0.25 inch long cable (including the connector)
28、 and shall allow for the insertion of one mating communications cord. 3.5.10.2 Electrical interface. The intercom shall interface with the V-22 and CBR communications equipment as depicted on figure 3. 3.5.11 Dimensions. The dimensions of the intercom shall be as shown on figure 4. Configuration can
29、 vary as long as the unit stays within the maximum dimensions. 3.6 Construction. 3.6.1 Unacceptable Material. Natural rubber or natural rubber cement shall not be used. Rubber substitutes and plastic materials shall not be used as edges and fillers. 3.6.2 Intercom amplifier circuitry. All electronic
30、s shall be contained within the intercom assembly to minimize the risk of a fire potential. Voltages and currents in the intercom system shall not create sparks or any other adverse effect that presents a fire potential. This includes connecting and disconnecting any and all intercom cabling and con
31、nectors. 3.6.3 Cement. The cement used shall meet all test conditions. 3.6.4 Amplifier shield. To minimize the effects of electromagnetic interference or susceptibility, the amplifier shall be shielded. 3.6.5 Solderability. Soldering shall be performed in accordance with J-STD-001. 3.6.6 Aircrew saf
32、ety. The construction shall be such that no potential voltages are present on any surface that could create a shock hazard to the user under any environmental condition. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-DTL-32086(AS) 6 3.6.7 Cord,
33、cordage, and cables. 3.6.7.1 Temperature range. The cable shall be flexible and resilient throughout the temperature range of -40 to +85 C and shall show no evidence of cracking or any other damage as a result of exposure to the temperature range specified herein (see 4.5.3.1). 3.6.7.2 Flex life. Th
34、e cable shall have a mean flex life of 25,000 flexes without showing evidence of the following (see 4.5.3.2): a. Damage to the outside jacket (splits, cracks) b. Damage to the insulation of the individual conductors c. Electrical discontinuity 3.6.7.3 Cord anchorage. The cord and its anchorage betwe
35、en the connector plug and the unit body shall withstand an 8-pound pull applied for a period of 30 minutes without damage to the cord and its anchorage. Any slippage at the connector shall be considered a failure (see 4.5.3.3). 3.6.7.4 Conductor strain relief and twist relief. The conductors shall b
36、e anchored in the connector plug and unit body to provide strain relief for the conductors. Means shall be provided to prevent twisting or inward movement of the cord in the connector plug or unit body (see 4.5.3.4). 3.6.7.5 Insulation resistance. When tested in accordance with 4.5.3.5, the insulati
37、on resistance between the conductors and outside insulation shall be not less than 10 megohms. 3.6.7.6 Dielectric withstanding voltage. When tested as specified, the insulated conductors to the cable outside insulation shall withstand the application of 115 VAC nominal alternating potential of comme
38、rcial line frequency without flashover or breakdown (see 4.5.3.6). 3.7 Performance. 3.7.1 Electrical characteristics. 3.7.1.1 Current consumption. Current draw shall be not more than 15 mA DC in the Listen mode and not more than 150 mA DC in the Talk/Listen mode when tested as specified (see 4.5.2.1
39、.1). 3.7.1.2 Input impedance. The intercom circuit shall provide power and input impedance necessary for use with the M32015/5 CBR Mask Intercom assembly. The load at the intercom input shall be 150 ohms 5 percent (see 4.5.2.1.2). Provided by IHSNot for ResaleNo reproduction or networking permitted
40、without license from IHS-,-,-MIL-DTL-32086(AS) 7 3.7.1.3 Frequency response. When tested as specified, the nominal audio frequency response of the intercommunication unit shall be as shown on figure 5 over the frequency range of 300 Hz to 3500 Hz (see 4.5.2.1.3). 3.7.1.6 Voltage operating range. The
41、 communication unit shall operate at 9 1 Volts D.C. (see 4.5.2.1.4). 3.7.3 Acoustic. 3.7.3.1 Harmonic distortion. When tested as specified, the distortion shall be less than 5 percent (see 4.5.2.2.1). 3.7.3.2 Talk output level. The mean sound pressure level at 12 in. from the speaker unit shall be 8
42、0 dB 5 dB sound pressure level (SPL) at 1000 Hz with an applied input signal of 20 mV. The communication units Talk Output Level shall be within 3 dB of the initial Talk Output Level after subjection to environmental test conditions (see 4.5.2.2.2). 3.7.3.3 Listen level. The electrical output shall
43、be between 330 mV to 570 mV with an applied sound pressure level (SPL) of 104 dB at 1000 Hz. The communication units Listen Level shall be within 3 dB of the initial listen level after subjection to environmental test conditions (see 4.5.2.2.3). 3.8 Environmental. 3.8.1 High temperature. When tested
44、 as specified in 4.5.4.1, the intercom shall operate without failure. 3.8.2 Low temperature. When tested as specified in 4.5.4.2, the intercom shall operate without failure. 3.8.3 Humidity. Upon completion of the humidity test, the intercom shall meet the requirements of 3.7.3.2 and 3.7.3.3 (see 4.5
45、.4.3). 3.8.4 Vibration. Upon completion of the vibration test, the intercom shall meet the requirements of 3.7.3.2 and 3.7.3.3 (see 4.5.4.4). 3.8.5 Shock. Upon completion of the shock test, the intercom shall meet the requirements of 3.7.3.2 and 3.7.3.3. There shall be no evidence of breaking, crack
46、ing, or other structural damage (see 4.5.4.5). 3.8.6 Electromagnetic environmental effects. When tested as specified, the intercom shall operate without failure and show no signs of radiated susceptibility (see 4.5.4.6). Provided by IHSNot for ResaleNo reproduction or networking permitted without li
47、cense from IHS-,-,-MIL-DTL-32086(AS) 8 3.8.7 Salt fog. When tested as specified, the intercom shall operate without failure and show no structural degradation (see 4.5.4.7). 3.8.8 Rain. When tested as specified, the intercom shall operate without failure (see 4.5.4.8). 3.8.9 Fungus. When tested as s
48、pecified, the intercom shall not support fungal growth and shall operate without failure (see 4.5.4.9). 3.8.10 Low pressure (altitude). When tested as specified in 4.5.4.10, the intercom shall operate without failure. 3.8.11 Dust. When tested as specified, the intercom shall operate without failure
49、(see 4.5.4.11). 3.9 Identification of product. 3.9.2 Marking. A label shall be affixed to the unit and contain the following information: M32086 Intercom, Portable Manufacturers Name and/or CAGE Code Contract Number Date Code Serial Number. 3.10 Environmental stress screening (ESS). When specified in the contract, the contractor shall subject each intercom to, and successfully p
