1、MIL-C-14879 (MU) 2 March 1970 MIL IT AR Y SPEC IF I CAT ION CIRCUIT CARD ASSEMBLY: 10559225 (CONTROL, GUNNERS, LASER RANGING) 1. SCOPE 1. 1 known as Circuit Card Assembly: 10559225, (Control, Gunners, Laser Ranging) (see 6. 1). This specification covers one type of electronic assembly 2. APPLICABLE
2、DOCUMENTS 2. 1 The following documents, of the issue in effect on date of invitation for bids or request for proposal, form a part of this specification to the extent specified herein. SPECIFICATIONS Military MIL- F- 13926 MIL-P- 14232 MIL-1-45607 Fire Control Materiel: General Specification Governi
3、ng the Manufacture and Inspection of Parts, Equipment and Tools for Army Materiel: Packaging and Packing of Inspection Equipment, Supply and Maintenance of STANDARDS Military MIL,-STD- 105 MIL-STD- 109 MIL-STD-810 Environmental Test Methods Sampling Procedures and Tables for Inspection by Attributes
4、 Quality Assurance Terms and Definit ions DRAWINGS U. S. Army, Frankford Arsenal F10559225 Circuit Card Assembly - Control, Gunners, Ltaser Ranging FSC 1240 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C- 14879(MU) PACKAGING DATA SHEET 105 5 9
5、22 5 Packaging of Circuit Card As sem bly (Cont r 01, Gunners , Laser Ranging): 10559225 (Copies of specifications, standards, drawings, and packaging data sheets required by suppliers in connection with specific procurement functions should be obtained from the procuring activity or as directed by
6、the contracting officer. ) 3. REQUIREMENTS 3, 1 Fabrication, - The circuit card assembly shall be man- ufactured in accordance with Drawing F10559225 and drawings per- taining thereto. 3. 2 General specification. - The circu.it card assembly shall meet the following requirements, where applicable, o
7、f MIL-F- 13926: (a) Order of precedence (b) Dimensions and tolerances (c) Part identification and marking. 3. 2. 1 Electronic workmanship. - The circuit card assembly shall meet the workmanship requirements of Drawing F10559225 and drawing s pe r t aining the ret o. 3. 3 Performance. - Unless otherw
8、ise specified, the circuit card assembly shall meet the performance requirements of this specification at standard ambient temperatures between 60 degrees Fahrenheit (OF) and 90F. 3. 3. 1 Loads, power, and signals. - The circuit card assembly shall perform as specified herein when the loads, power,
9、and signals of Table I are applied as specified. TABLE I E Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-I4877 I2 m 7779706 0432824 3 m ITEM 1.2 1.3 1.4 1. 5 1.6 1.7 1. 8 1.9 1. 10 1.11 1.12 1. 13 1. 14 1. 15 1. 16 1. 17 1. 18 1. 19 1.20 1.2
10、1 1.22 1.23 2. o 2.1 2.2 3. o 3. 1 3.2 MIL-C- 14879(MU) TABLE I (continued) CONDITION Resistor Re s ist or Res is tor Resistor Re sis tor Res is tor Resistor Res is tor Res is tor Resistor Res is tor Resistor Resistor Res is tor Res is tor Res ist or Resistor Resistor Resistor Res is tor Resistor Re
11、 sis tor Power sources t5v t15V Signal sour c.e s Digital Type A Digital Type C CHARACTERIS TICS 120 120 120 120 120 120 120 120 160 510 3000 3000 . 1500 1500 1000 1000 1 O00 620 510 3 90 1000 2400 Max. Tolerances p-p ripple - +o. 2v 25 mV LO. 7v 25 mV Logical one: t4flV Logical zero: 0.2 f0.2V Logi
12、cal one: t19LlV Logical zero: Open crcuit CONNECTIONS Nand i9 Mand 19 Z and 19 21 and 19 20 and 19 1 and 19 2 and 19 23 and 19 4 and 19 3 and 19 16 and J V and J U and J X and J e and J w and J 25 and J C and J D and J f and J T and J 18 and 14 J (t) and 14 (-) 19 (t) and 14(- Applied as specified i
13、n subsequent tables he re in, 3. 3. 1. 1 RANGE and RESET light drive. - With the digital type-A and type-C signals of Table I applied as specified in Table II, the voltages at the output terminals shall be as specified in Table II for each input condition. 3 Provided by IHSNot for ResaleNo reproduct
14、ion or networking permitted without license from IHS-,-,- MIL-C-34877 12 m 7779706 0433825 5 W 5 TABLE II 111 O NA 1.2 LO. 7V:k 15 +lV :l. 2 +O. 9 at the temperature extremes specified in 3. 3. 2. 2. Legend: D = logical zero, type C E = logical one, type C 1 = logical one, type A O = logical zero, t
15、ype A NA = not applicable 3. 3. 1.2 LASER MODE CONTROL light drive. - With the digital type-A signal of Table I applied as specified in Table III, the voltages at the output terminals shall be as specified in Table III for each input condition. TABLE III I INPUT TO PINS OF P1 I OUTPUT AT PINS OF P1
16、1 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-34877 32 m 747770b 0433826 7 m MIL-C- 14879(MU) 3. 3. 1. 3 Test or automatic signal generation, - With the digital type-A signal of Table I applied as specified in Table IV, the voltages at th
17、e output terminals shall be as specified in Table IV for e a c h input condition. TABLE IV I l I t INPUT TO PINS OF P1 OUTPUT AT PINS OF P1 3, 3, 1.4 MALF-SELECT-GO light drive. - With the digital type-A signal of Table I applied as specified in Table V, the voltage at the output terminals shall be
18、as specified in Table V for each input condit ion. TABLE V 3 o 11 1 ONANA. 1 NA 1. 2 . - The test equipment shalL be in accordance with the “Test Facilities“ requirements of MIL- F- 13926 except that the circuit card assembly msry- be mounted on an inside surface of the test chamber for the .e.npera
19、ture test and the tolerance requirements for vibration frequency measuring instruments shall not apply. 4.6. 9. 1 Temperature test. - NOTE: The rate of temperature chrtnge shall be less than 7OF per minute during temperature cycling. (a) Place the circuit card assembly in the test chamber and (b) So
20、ak the circuit card assembly at this temperature for (c) Raise the chamber temperature to -40F. reduce the chamber temperature to -80F. at least 5 hours with the unit not operating. . (d) Following thermal stabilization at -40F, place the circuit card assembly ia operation and perform the tests spec
21、ified in 4.6. 2 through 4. c. 8. O (e) Raise the chamber teniparabire to t160 F. 13 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,- MIL-C-LLI879 12 M 9999906 0433835 MIL - C - 14 8 79 (MU) (f ) Soak the circuit card assembly at t 1600F for at least
22、5 hours with the assembly not operating. (g) Reduce the chamber temperature to t1250F. (h) Following thermal stabilization at t 125F, place the circuit card assembly in operation and perform the tests specified in 4. 6. 2 through 4. 6. 8. (i ) Reduce the chamber temperature to ambient. (j ) Followin
23、g stabilization at ambient temperature, place the circuit card assembly in operation and perform the test specified in 4. 6. 2 through 4.6. 8. The circuit card assembly shall meet the requirements of 3. 3.2, 1 and 3. 3. 2. 2. I 4. 6.9. 2 Vibration. - With the circuit card assembly firmly mounted to
24、the vibration table perform the following: (a) Test in accordance with Method 514-1 of MIL-STD- 810 for category (f) equipment, except that the accel- eration shall not exceed &4g and the maximum excursion (double amplitude) shall be O. 5 inch. 5 Hz in a period of 15 minutes. in each of the three mu
25、tually perpendicular axes. card assembly for structural failures, loose hardware, wire breakage and abrasion. perform the tests specified in 4. 6. 2 through 4, 6. 8. (b) Sweep the frequency from 5 Hz to 500 Hz and back to Perform two sweeps (c) Following vibration cycling, examine the circuit (d) Pl
26、ace the circuit card assembly in operation and The circuit card assembly shall meet the requirements of 3. 3. 2. 3. 5. PREPARATION FOR DELIVERY 5. 1 Packaging, packing and marking. - Packaging, packing and marking shall be in accordance with Packaging Data Sheet 10559225, The level of protection sha
27、ll be as specified in the procurement docu- ment. 6. NOTES 6. 1 Intended use. - The circuit card assembly is a plug-in mod- ule of the Laser Kanging Gunners Control, intended for use in the Laser Range Finder AN/VVS-1. The circuit card assembly accepts appropri- ate combinations of logic control sig
28、nals to perform the following major functions: 14 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-(a) Provide control logic for target selection circuits. (b) Generate test and automatic mode signals. (c) Energize panel indicator lights. (d) Generate
29、 turn-on reset signals. .6.2 Ordering data. - Procurement documents should specify the following: Title, number, and date of this specification. Applicable packaging data sheet number (see 5. 1). Selection of applicable levels of preservation, packaging and packing. Applicable stock number. Requirement for First Article Submission. Preparing Activity: Army - MU Project No, 1240-Al48 *US. GOVERNMENT PRINTING OFFICE: lQ70-383-085/98380 15 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
