1、MIL-1-24078 (1) 58 W 7797706 0442468 7 m- MILITARY SPECIFICATION INTERCOMMUNICATION STATIONS NAVAL SHIPBOARD This amendment forms a part of Military Specifica- tion MIL-I-24078(SHIPS), 14 September 1964. MIL-I-24078(SHIPS) AMENDMENT - 1 14 June 1965 Page 1, paragraph 2.1, Specification MIL-L-12606,
2、line 2: Delete !Type LS-445/Vf and substitute “Type LS-445/.“ Page 6, paragraph 3.24: Add: “Operation of the LS-519/SIC intercommunication station shall be iden- Page 7, paragraph 3.24.5: Delete and substitute: l3.24.5 Operation of equipment with remote loudspeaker stations. - Intercommunication sta
3、tions ?ur- tical to that of the LS-51S/SICs“ nished under this specification shall be capable of performing in the manner specified herein when used with one or more remote loudspeaker stations. The remote loudspeaker station shall include: (1) an LS-305/ SIC(IC/SAA) or LS-306/SIC(IC/SAG) loudspeake
4、r manufactured in accordance with requirements of MIL- A-20222 for loudspeaker type IC/SAA or IC/SAG; (2) two talk switches; and (3) a busy indicator lamp. The remote loudspeaker station circuitry will be in accordance with figure 3. “3.24.5.1 Wiring of intercommunication stations for use with remot
5、e loudspeaker stations. - 3.24.5.1.1 As required by 3.13.1, terminals shall be provided on the terminal board in the intercom- munication station for connection of ships wiring from the loudspeaker station(s) being used. “3.24.5.1.2 Means shall be provided to allow individual loudspeaker stations to
6、 be assigned to station selector switches of the master station on the basis of one loudspeaker station for each selector switch pushbutton. With one or more selector switch pushbutton(s) assigned to individual loudspeaker stations, the remaining master station selector switches shall be availabIe f
7、or assignment to call other in?ercommunica- tion stations in the system. The LS-518/SIC shall be capable of working with from 1 to 10 remote loud- speaker stations. The LS-519/SIC shall be capable of working with from 1 to 20 remote loudspeaker stations. “3.24.5.1.3 Type LS-518/SIC and LS-519/SIC in
8、tercommunication stations shall be factory wired for use in a system made up of intercommunication stations. Any wiring modification necessary for using the units with remote loudspeaker stations will be made during installation. The technical manual shall include de- tailed information on any wirin
9、g changes that are necessary. or LS-519/SIC) to call a remote loudspeaker station shall be as follows: 3.24.5.2 Master station calling remote loudspeaker station.- Operation of the master station (LS-518/SIC “(a) Master station depresses the station selector switch pushbutton associated with the cal
10、led sta- tion to select an individual loudspeaker station. “(b) The master station operator then depresses the press-to-talk switch and speaks into the loud- speaker. Speech is heard at the remote loudspeaker station. “(c) Master station releases press-to-talk switch and waits for reply from remote
11、loudspeaker station. Loudspeaker station operator replies without operating any switches by simply talk- ing into the remote loudspeaker. “(d) Master station operator releases s?ation selector switch at end of call to return the station to standby conditfon. “3.24.5.3 Remote loudspeaker station call
12、ing master station.- Operation of the loudspeaker station to originate a call to a master station shall be as follows: IFSC 58351 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-24078 (1) 58 7773706 0442467 7 MIL-I-24078(SHIPS) AMENDMENT - 1 “(
13、a) The loudspeaker station talk switch associated with the master station being called is operated to the talk position. If the selected master station is busy, the loudspeaker busy lamp shall light, indicating the master station should not be called. station is idle. With the switch in the talk pos
14、ition, the loudspeaker station operator speaks into the loudspeaker. Speech will be heard at the master station. “(c) After the initial transmission to the master station, the speaker station operator releases the talk switch to the normal position. The master station then replies by operating the p
15、ress- to-talk switch. selector switch is operated to select the station originating the call, operation shall be as specified in 3.24.5.2 until the end of the conversation.“ “(b) If the busy lamp remains unlit when the talk switch is operated to the talk position, the master “(d) If, when the master
16、 station is called by a remote loudspeaker station, the master station Page 10, paragraph 3.26.13: Delete and substitute: “3.26.13 Overall frequency response.- The overall frequency response, using the loudspeaker as a microphone and using a type IC/MPM-4 microphone, shall fall within the limits for
17、 the overall frequency response curves shown on figure 2 when tested as specified in 4.6.4 and 4.6.5.“ Page 13, paragraph 4.6.1: Delete and substitute: “4.6.1 Operating test.- The operating test shall be performed with the unit mounted in its case (to insure that the plug and jack connectors are mat
18、ing properly). Operation of the unit shall be tested under the condi- tions specified in 4.6.1.1 and 4.6.1.2. “4.6.1.1 w.- The equipment station shall be tested with an LS-386/SIC or LS-385/SIC intercommunication station for compliance with the opera- tional requirements of paragraph 3.24.1. If an L
19、S-386/SIC or LS-385/SIC is not available, a circuit model of the LS-386/SIC control circuitry shall be constructed and used for the test. “4.6.1.2 Operation with remote loudspeaker station.- The equipment station shall be tested for com- pliance with the operational requirements of 3.24.5, using an
20、LS-306/SIC loudspeaker (or equivalent), talk switches, and a busy lamp, as specified.“ “master station (LS-385/SIC, LS-386/SICJ LS-518/SIC or LS-519/SIC).“ Page 14, paragraph 4.6.8(d), lines 2 and 3: Delete “type LS-385/SIC or LS-386/SIC station and substitute Add attached figure 3. Preparing activi
21、ty: Na. - SH (Project 5835-N101Sh) Page 2 of 3 pages Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-1-24078 (1) C W 7777906 0442470 5 _ MIL-I-24078(SHIPS) AMENDMENT - 1 TO TO MASTER STATION N0.I MASTER STATION N0.2 TAL SHE301 LS- 305 )/SIC QR LS - 306( I/ SIC LOUDSPEAKER Figure 3 - Schematic diagram for remote loudspeaker station. Page 3 of 3 pages Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
