1、1. SCOPE MIL-I-225bOC W 06 L980395 2T = INCH-POUND MIL-I-22560C(SH) 26 ADril 1994 SUPERSEDING MIL-I-22560B(SHIPS) 1 December 1969 (See 6.8) MILITARY SPECIFICATION INTERCOMMUNICATION STATIONS (HANDS-FREE OPERATED REPLY REPRODUCER) NAVAL SHIPBOARD 1.1 This specification covers LS-458/SIC “hands-free“
2、operated intercom- munication stations for use in Naval shipboard announcing systems. 2. APPLICABLE DOCUMENTS 2.1 Government documents. 2.1.1 Specifications. standards. and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein.
3、Unless otherwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (DoDISS) and supplement thereto, cited in the solicitation (see 6.2). SPECIFICATIONS MILITARY MIL-T-27 - Transformers and Inductors (Audio, Power
4、 and High Power Pulse), General Specification for. MIL- C - 62 - Capacitors, Fixed, Electrolytic (DC, Aluminum, Dry Electrolyte, Polarized, General Specification for. MIL-C-3965 - Capacitors, Fixed, Electrolytic (Nonsolid Electrolyte) Tantalum, General Specification for. MIL-L-12606 - Loudspeaker, P
5、ermanent Magnet (Unencased, 3-inch and 4-inch Diameter Cone, 2-Watt; Fungus- and Immersion Resistant), Type LS-445/U, M12606-01 and M12606. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving this document should be addressed to: Comman
6、der, Naval Sea Systems Command, SEA 03R42, 2531 Jefferson Davis Hwy., Arlington, VA 22242-5160 by using the self-addressed Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC N/A FSC 5830 DISTRIBUTION STATEMENT A. Approved for public
7、release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-225bOC = 999990b 1980396 L2b MILITARY (Continued) MIL-E-17555 - Electronic and Electrical Equipment, Accessories, MIL-1-24078 - Intercommunication Stations, Nav
8、al Shipboard. MIL-C-24643 - Cable and Cord, Electrical, Low Smoke, for Shipboard MIL-M-38510 - Microcircuits, General Specification for. Provisioned Hem and (Repair Parts); Packaging of. Use, General Specification for. STANDARDS MI LI TARY MIL-STD-275 - Printed Wiring for Electronic Equipment. MIL-S
9、TD-454 - Electronic Equipment Standard General Requirements MIL-STD-701 - Lists of Standard Semiconductor Devices. MIL-STD-2036 - General Requirements for Electronic Equipment for. Specifications. (Unless otherwise indicated, copies of the federal and military specifi- cations, standards, and handbo
10、oks are available from the Standardization Documents Order Desk, Building 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents. drawings. and wblications. The following other Government documents, drawings, and publications form a part of this document to the extent
11、 specified herein. Unless otherwise specified, the issues are those cited in the solicitation. DRAWINGS MILITARY 9000-S6502-74117 - Receptacle Announcing Equipment Plug and Receptacle Sym. 723, 724, and 725. (Application for copies should be addressed to: Commander, Portsmouth Naval Shipyard, Code 2
12、80.6, Portsmouth, NH 03801.) 2.2 Non-Government uublications. The following docwnent(s) form a part of this document to the extent specified herein. Unless otherwise specified, the issues of the documents which are DoD adopted are those listed in the issue of the DODISS cited in the solicitation. Un
13、less otherwise specified, the issues of documents not listed in the DODISS are the issues of the documents cited in the solicitation (see 6.2). AMERICAN SOCIETY FOR TESTING AND MATERIALS (ASTM) Systems, Equipment and Facilities. F 1166 - Standard Practice for Human Engineering Design for Marine (App
14、lication for copies should be addressed to the American Society for Testing and Materials, 1916 Race Street, Philadelphia, PA 19103.) 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-I-225bOC m 999990b L980397 Ob2 m MIL-I-22560C(SH) UNIFORM CLA
15、SSIFICATION COMMITTEE AGENT Uniform Freight Classification Ratings, Rules and Regulations. (Application for copies should be addressed to the Uniform Classification Committee Agent, Tariff Publication Officer, Room 1106, 222 South Riverside Plaza, Chicago, IL 60606.) (Non-Government standards and ot
16、her publications are normally available from the organizations that prepare or distribute the documents. These documents also may be available in or through libraries or other informational services.) 2.3 Order of precedence. In the event of a conflict between the text of this document and the refer
17、ences cited herein, 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 First article. When specified (see 6.2), a sample shall be subjected to first article inspe
18、ction (see 6.4) in accordance with 4.3. 3.2 Description. The LS-458/SIC intercommunication station, hereinafter referred to as the “equipment“, shall have selector switches for calling two stations, a busy light, one press to-talk switch, a microphone receptacle, one speaker-microphone switch, one r
19、emote normal switch and one volume control switch. The equipment shall have a transistorized amplifier-speaker for voice amplifi- cation and transmission and shall have a signal lamp associated with each station selector switch. The equipment shall be installed in protected locations. 3.3 General fe
20、atures. The equipment shall be in accordance with the appropriate sections of MIL-STD-2036 in addition to the requirements specified herein. 3.4 Materials. Materials used in the construction of the equipment shall be as specified herein or of an equivalent material when approved by the command or ag
21、ency concerned (see 3.3). 3.5 Design. The equipment shall provide naturalness and intelligibility of speech under all conditions, as described in ASTM F 1166. Accessibility for servicing shall be in accordance with the requirements of ASTM F 1166. 3.6 Fuseholders. Fuseholders shall be of a spring cl
22、ip type and shall be silver plated. 3.7 Switches. The handles or keys of rotary type selector switches shall be provided with mechanical stops to prevent undue strain on the switch handle and shaft, and to prevent rotation of the fixed portion of the switch. All switches shall, after 100,000 operati
23、ons, when energized at their rated loads, perform both mechanical and electrical functions for which they are intended, 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-225bOC W 9999906 I1980398 TT9 3.8 Interchangeability. The equipment shall
24、conform to the following: (a) The size and weight shall be greater than the following Case Width: 165 millimeters (mm) Depth 203 mm Height 216 nun Weight 11.34 kilograms (kg) Overall (including mounting plate and handle grips) 165 mm 229 mm 248 mm (b) The microphone receptacle shall be in accordance
25、 with 9000-S6502-74117. Wiring to this receptacle shall be as shown in MIL-P-24078. 3.9 Enclosure. A complete equipment enclosure shall consist of a case and removable front panel designed for mounting on a bulkhead and in a panel. The enclosure shall be steel or aluminum. The enclosure shall be dri
26、p-proof in accordance with MIL-STD-2036. 3.10 Front Danel and case securing bolts. Through bolting for the purpose of securing the front panel to the case and for securing the case in its mounted position will be permitted. All securing bolts shall have hexagonal heads with screwdriver slots. Suffic
27、ient space shall be allowed around bolt head surfaces to permit removal with a socket wrench. 3.11 Front panel surface. The front panel shall be free of unnecessary The depth of all operating controls in the nonoperated position projections. shall be approximately the same distance from the front pa
28、nel surface. 3.12 Handle grips. Handle grips shall be provided on the front panel to facilitate withdrawal of the front panel from the case. 3.13 Electrical connections. 3.13.1 Ships wiring connections. A terminal board shall be provided for connecting ships wiring to the equipment. The terminal boa
29、rd location shall be such that ships wiring can be connected to the terminal board without removing the equipment from its case. Sufficient terminals shall be provided on the terminal board to allow ships wiring connections for all modes of operation. 3.13.2 Plug-in connectors. Multi-contact plug an
30、d jack connectors shall be provided which will disconnect the unit from ships wiring when it is removed from its case. mounted in the rear of the case such that the plug engages in the jack when the equipment is placed in its case. The connectors shall employ .a floating type of mount to assure posi
31、tive alignment and positive connection. The plug shall be mounted on the equipment and the jack shall be 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-22560C 9999706 1780399 735 3.13.2.1 AliKnment guides. - Alignment guides shall be provide
32、d to assure positive alignment between the plug and jack connectors. The guides shall support the equipment during insertion and removal intervals while in the case. The guides shall prevent any damage to the plug-in connectors or any part of the equipment during insertion and removal of the unit fr
33、om its case. 3.14 Drainape. Drainage shall be provided for any panel recesses which otherwise would be susceptible to collection of water. 3.15 Control knobs. The size and shape of the operating control knobs shall be approved by the procuring activity for the function for which they are intended. 3
34、.15.1 Switch controls. The position of all switch controls shall be clearly visible in the normal or operated position. 3.15.2 Knobs and shafts. Knobs and shafts shall have flat or rectangular shapes on the connecting parts and shall be secured with a through roll-pin or other means approved by the
35、procuring activity. 3.16 Gaskets. Gaskets shall be used, if necessary, for making drip-proof seals between the case and front panel assembly. Gaskets shall be used for operating controls of the translating and rotary motion types. 3.17 Servicing. With the equipment removed from its case, all compone
36、nts shall be readily accessible for ease of replacement. When the equipment is removed from its case for servicing, all component parts shall be protected from possible damage when placed on any of its sides. 3.18 Transformers. Transformers shall be grade 5, class S, life expectancy X, as specified
37、in MIL-T-27. Where special shielding problems exist, such as in input circuits of audio amplifiers, the use of encased type transformers employing high permeability alloy shields will be permitted. 3.19 Relays. Relays, if used, shall conform to Requirement 57 of MIL-STD-454 and shall have dustproof
38、covers. 3.20 Illumination. All illumination shall be red in accordance with MIL-STD-2036. Illumination lamps shall be located to permit direct replacement of each lamp individually from the exterior of the watertight enclosure. 3.21 Signal indicator lamps. The signal indicator lamps shall be individ
39、ually located adjacent to the associated station selector switches. Signal indicator lamps shall be subminiature, omnidirectional, red plastic dome using a type T-1-3/4 lamp. 3.22 Station identification. The station identification shall be a dur- able, abrasive-resistant laminated plastic strip suit
40、able for engraving. The laminations shall be opaque black and translucent white. Guide lines shall be engraved on the marker to indicate the limits of the area to be engraved with the station designation. The engraved areas shall be at a sufficient depth to expose the translucent white lamination. T
41、he marker shall be a single strip removable from the front of the equipment. 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-I-225bOC 9999906 1980400 487 m 3.23 Rectifiers. Silicon type rectifiers shall be used to supply high voltage for the am
42、plifier. circuit as a surge current limiter. Rectifiers shall be selected from approved types listed in MIL-STD-701 and MIL-M-38510. A resistance shall be inserted in the high voltage 3.24 Operational features. The operational features of the system shall be as specified in 3.24.1 and 3.24.10, inclu
43、sive. (Master stations referred to are type LS-519/SIC or LS-518/SIC units manufactured in accordance with MIL-1-24078.) 3.24.1 LS-458/SIC callinn master station. Operate station selector switch. If station selected is not busy (indicated by busy lamp) operate talk-listen switch and talk into speake
44、r. 3.24.2 BUSY master station. If the master station is busy, the busy indicator lamp will light. This is an indication that the master station should not be called. 3.24.3 Operation of equipment with remote reproducer. This system shall consist of one LS-458/SIC station, one remote reproducer with
45、one normally closed single pole switch. Circuits shall be provided in the equipment for the following operations: (a) Operation of remote reproducer switch will connect remote reproducer to the input of the equipment amplifier and connect the equipment reproducer to the output of the equipment ampli
46、fier. The remote reproducer can then transmit speech. the remote reproducer to input of the equipment amplifier and connect the equipment reproducer to output of the equipment amplifier. Speech can then be transmitted from the remote reproducer without operation of the remote reproducer switch. (c)
47、With equipment selector switch operated, this station can transmit speech to remote reproducer by operation of press-to-talk switch. Remote reproducer can reply with hands-free operation when the equipment “press to talk“ switch is in restored position. (b) Operation of station selector switch on th
48、e equipment will connect 3.24.4 Master station callinn equipment station. The equipment shall operate as follows: (a) Normal operation to answer a call. Press talk-listen switch and talk into speaker. (However, even though unnecessary, if the conventional method of selecting the calling station by p
49、ressing the station selector switch is used, a busy light at the answering station shall light, but this shall not prevent the answering station from talking back to the calling station). station in “Remote“ position, operation of station selector switch on master station shall put the equipment in “hands-free talk“ position. Operation of press-to-talk switch on master station shall cause equipment station to be in “Listen“ position. When master station depresses release swit
