1、. MIL-C-70b18B m Ob L5248L bb m I INCH-POUND 1 MIL-C-70618B (AR) 30 September 1993 SUPERSEDING MIL -C - 7 O 6 18A (AR ) 17 October 1988 MILITARY SPECIFICATION CIRCUIT CARD ASSEMBLY, GUNFIRE SIMULATOR: 12725086 This specification is approved for use by the U.S. Army Armament, Munitions and Chemical C
2、ommand, and is available for use by all Departments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the requirements, examinations and tests for the Circuit Card Assembly (CCA) Target used in the Gunfire Simulator (GUFS), also known as the Target Kill Simulat
3、or (TKS), used as a component of the Remote Target System (RETS) (see 6.1). 2. APPLICABLE DOCUMENTS O 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. Unless o
4、therwise specified, the issues of these documents are those listed in the issue of the Department of Defense Index of Specifications and Standards (EODISS) and supplement thereto, cited in the solicitation (see 6.2). I Beneficial comments (recommendations, additions, deletions) and any pertinent dat
5、a which may be of use in improving this document, should be addressed to: Commander, U.S. Army ARDEC, ATTN: SMCAR-BAC-S, Picatinny Arsenal, New Jersey 07806-5000 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. I AMSC N/A F
6、SC 6921) _ DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-C-70bLBB = 9999906 1952482 bT2 MIL-C-70618B (AR) SPECIFICATIONS MILITARY MIL-F-13926 - Fire Control Mater
7、iel, Manufacture and MIL-1-45607 - Inspection Equipment, Acquisition, Inspection, General Specification for Maintenance and Disposition of STANDARDS MI LI TARY MIL-STD-109 MIL-STD-454 - Standard General Requirements for MIL-STD-810 - Environmental Test Methods and - Quality Assurance Terms and Defin
8、itions Electronic Equipment Engineering Guidelines HANDBOOKS MILITARY MIL-HDBK-220 - Glossary of Training Device Terms (Unless otherwise indicated, copies of federal and military specifications, standards, and handbooks are available from the DODSSP - Customer Service, Standardization Documents Orde
9、r Desk, Bldg. 4D, 700 Robbins Avenue, Philadelphia, PA 19111-5094.) 2.1.2 Other Government documents, drawinqs, and publications. drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues are those cited in the solicitation. The fo
10、llowing other Government documents, DRAWINGS (see 6.3) U.S. ARMY ARMAMENT RESEARCH, DEVELOPMENT AND ENGINEERING CENTER ( ARDEC ) 11785556 - Requirements for Soldered Electrical and 12725085 - Gunfire Simulator 12725086 - Circuit Card Assembly, Gunfire Simulator 12725088 - Electronic Control Assembly
11、 Electronic Assemblies SPECIAL PACKAGING INSTRUCTION PS 12725086 - Special Packaging Instructions for the Circuit Card Assembly, Gunfire Simulator 2 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-Ob18B = 9999906 1952483 539 MIL -C - 7 O 6 18B
12、( AR ) (Copies of other Government documents, drawings, and publications required by contractors in connection with specific acquisition functions should be obtained from the contracting activity or as directed by the contracting activity.) 2.2 Order of precedence. In the event of a conflict between
13、 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 regulations unless a specific exemption has been obtained. (See contract provisions for additional precedence criteria.) 3. REQUIR
14、EMENTS 3.1 Materials. Materials shall be in accordance with the applicable drawings and specifications. 3.2 Components and assemblies. The components and assemblies shall comply with all requirements specified on Drawing 12725086, all associated drawings, and with all requirements specified in appli
15、cable specifications and standards. Where applicable, the CCA shall meet the requirements of MIL-F-13926 as follows: a. Dimensions and tolerances. b. Inorganic protective surface finishings. c. Part identification and marking. d. Workmanship. 3.3 Performance. 3.3.1 Firincr command. The CCA upon rece
16、ipt of a firing command on Pin N (M21) or Pin I or J (Smoke) of the GUFS input connector shall verify that the command is valid before processing the command to the firing circuits. A valid firing command shall satisfy the following conditions: a. Minimum voltage: 9.3 VDC b. Maximum voltage: 13.6 VD
17、C c. Minimum pulse width: 50 milliseconds d. Maximum duration: infinite 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-HIL-C-70618B W 999790b 1752484 475 MIL-C-70618B (AR) 3.3.1.1 Firins command interruDt. Once a valid firing command has been dete
18、cted by the CCA, the firing sequence shall be initiated and all further inputs shall be interrupted until the firing sequence, including the firing pulse lockout period, has been completed. 3.3.1.2 Firins Dulse lockout. A minimum delay of two (2) seconds shall be provided between the completion of o
19、ne firing sequence and initiation of a second firing sequence in response to a valid command. The CCA shall not respond to any input commands sensed during the firing pulse lockout period. 3.3.2 Firinq sequence. The CCA shall provide two separate firing modes: a. Sequential firing of GUFS ports 1 th
20、rough 20. b. Partitioned firing of GUFS ports 1 through 15 and ports 16 through 20. Each partitioned segment shall be fired in sequence as commanded. 3.3.2.1 Sequential mode (M21). Upon receipt of a valid firing command on Pin N, a single firing pulse shall be directed to the next firing port in seq
21、uence starting with port 1 and continuing through port 20. Each port will be fired once and the circuitry shall retain last port firing sequence until the system is reset and rearmed. 3.3.2.2 Partitioned mode (M21 and smoke). Upon receipt of a valid firing command on Pin I or J of the GUFS, the CCA
22、shall automatically partition itself into two firing sections. Parts 1 through 15 shall fire when commanded by an input pulse on Pin N (M21). Ports 16 through 20 shall fire when commanded by an input on Pins I or J (Smoke). In response to a valid command the ports in each section shall fire a single
23、 output in sequence within the designated section. Each port shall be fired once and the circuitry shall retain the last port fired sequence for each section until the system is reset and rearmed. 3.3.2.3 Input-transfer. When the last port is fired in any firing mode for either a sequential or a par
24、titioned GUFS device, the CCA shall automatically transfer the next firing command directly to the input-transfer connector (54). The firing command transferred shall control any GUFS unit connected to the GUFS input-transfer connector in tandem with the basic device. 4 Provided by IHSNot for Resale
25、No reproduction or networking permitted without license from IHS-,-,-MIL-C-7063BB m 9999906 3952485 301 m MIL-C-70618B (AR) 3.3.2.4 Last Dort fired. The CCA shall contain a non- volatile resetable memory for each firing section. The memory circuits shall increment one position each time a valid firi
26、ng command is detected. Last position commanded per section shall be retained until an automatic reset command is received. interruptions or shutdown of the primary power source shall not cause loss, change, or reset of the memory circuits. Memory circuits shall automatically reset when the ARM/SAFE
27、 switch is placed in the SAFE position as part of the normal GUFS reloading sequence. Power 3.3.3 Output command. 3.3.3.1 Output pulse power. The firing circuits shall provide a current regulated output of 1.7 to 2.2 amps for a duration of 110-140 milliseconds at each commanded firing port. This out
28、put shall be independent of the load applied to the output port from 0.5 to 3.0 ohms. 3.3.3.2 Safety interlock. The CCA shall normally maintain a short circuit across all output lines. directed to the specified port to be fired. The short across the port to be fired is only removed during the firing
29、 cycle for that port. 3.3.4 Input Dower. The CCA shall automatically monitor the input power lines to prevent inadvertent or false firing commands to be generated when subjected to the following input conditions: Power shall only be a. Power up transients. b. Low power condition: Less than 10.5 VDC
30、c. Overvoltage condition: Greater than 13.6 VDC d. Reverse voltage. e. RFI/EMI transients. 3.3.4.1 Power-up interrupt. The CCA firing circuits shall be interrupted for 60 to 120 seconds after initial power up (Arming) of the GUFS. If during the power up lockout period, (60 to 120 seconds) transients
31、, power interruptions, or firing commands are sensed, the power up lockout period will be reset. A minimum of 60 seconds of uninterrupted main power must be sensed before the firing circuits can be energized. 3.3.4.2 Low power interruDt. The CCA firing circuits shall not be energized if the input fi
32、ring signal is less than 9.3 VDC. O 5 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-706186 W 9999706 1952486 248 MIL-C-70618B (AR) 3.3.4.3 Power line wotection. The CCA shall include protection against overvoltage and reverse voltage input po
33、wer conditions. Protection shall also be provided against the effects of both positive and negative power line transient inputs in excess of requirements of 3.3.1. 3.3.5 Input/output interconnections. nput/output connections to the CCA shall be provided by four (4) connector receptacles: a. b. C. d.
34、 Wiring to the Table I. Input Receptacle (53) Input-transfer Receptacle (54) Output Receptacle (Ports 1-10 (JI) Output Receptacle (Ports 11-20) (52) respective receptacles will be in accordance with 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-M
35、IL-C-70bLBB 0b 1952487 184 = PIN 8 PIN 9 PIN 10 PIN 11 PIN 12 PIN 13 MIL-C-70618B (AR) N/A N/A PORT 3 PORT 13 N/A N/A PORT 7 PORT 17 N/A N/A PORT 8 PORT 18 N/A N/A PORT 4 PORT 14 N/A N/A PORT 9 PORT 19 N/A N/A COMMON COMMON TABLE I. Wirinq connections CCA. 3.4 Environmental. The CCA shall meet the r
36、equirements specified herein unless otherwise specified. 3.4.1 Room ambient temperature. The requirements of this specification shall be met with the CCA stabilized at room ambient temperature of +1O“C (50F) to 32C (9O“F), unless other- wise specified. 3.4.2 Operatinq temperature. The CCA shall meet
37、 the performance requirements in 3.3.2 through 3.3.5, inclusive, when exposed to temperatures from -32C (-25F) to +69“C (149F). 3.4.3 Vibration. The CCA shall meet the requirements of 3.3 after being subjected to MIL-STD-810, Method 514, Procedure 1-3.3.1 using Figure 514.4-1 for one hour of random
38、vibration 7 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70bLB 9999906 L952488 OLO = MIL-C -7 O 61 8B (AR) along the vertical axis. Testing shall be conducted in a fixture which duplicates the CCA mounting configuration when installed in the
39、 GUFS end application device. 3.4.4 Reliability. Each circuit card assembly shall be subject to a burn-in test to screen out any latent defects which would limit operational reliability in the GUFS. This shall be accomplished by subjecting each board to the burn-in test cycle and verifying performan
40、ce per 3.3. 3.4.5 Conformal coatinq. Each CCA, after completion of a burn-in test sequence, shall be conformally coated with a minimum of 3 Mil coating. 3.5 First article. When specified in the contract or purchase order (see 6.2), a sample shall be subjected to first article inspection in accordanc
41、e with the technical provisions herein (see 4.3). 3.6 Solderinq. All soldering shall be in accordance with the requirements of drawing 11785556, Note 1. 3.7 Workmanship. The workmanship requirements of MIL-F- 13926, and applicable requirements of MIL-STD-454 shall apply. 4. QUALITY ASSURANCE PROVISI
42、ONS 4.1 Responsibility for inspection. Unless otherwise specified in the contract or purchase order, the contractor is responsible for the performance of all inspection requirements (examinations and tests) as specified herein. Except as otherwise specified in the contract or purchase order, the con
43、tractor may use his own or any other facilities suitable for the performance of the inspection requirements specified herein, unless disapproved by the Government. The Government reserves the right to perform any of the inspections set forth in this specification where such inspections are deemed ne
44、cessary to ensure supplies and services conform to prescribed requirements. 4.1.1 Responsibility for comDliance. All items shall meet all requirements of Sections 3 and 5. The inspection set forth in this specification shall become a part of the contractors overall inspection system or quality progr
45、am. The absence of any inspection requirements in the specification shall not relieve the contractor of the responsibility of ensuring that all products or supplies submitted to the Government for acceptance comply with all requirements of the contract. Sampling inspection, as part of manufacturing
46、operations, is an acceptable 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-C-70bL8B m 0b 1752489 T57 m MIL-C-70618B (AR) practice to ascertain conformance to requirements, however, this does not authorize submission of known defective materia
47、l, either indicated or actual, nor does it commit the Government to accept defective material. 4.1.2 General provisions. Unless otherwise specified herein, the provisions of MIL-F-13926 and MIL-STD-454 apply and form a part of this specification. Reference shall be made to MIL-STD-109 to define qual
48、ity assurance terms used herein. 4.2 Classification of inspections. The inspection requirements specified herein are classified as follows: a. First article inspection (see 4.3). b. Quality conformance inspection (see 4.4). c. Special sampling inspection (see 4.5). 4.2.1 Inspection conditions. Unles
49、s otherwise specified, all examinations and tests shall be conducted at the following standard ambient conditions: a. Temperature +50F to +90F b. Relative humidity 90% RH Max. c. Pressure 28 to 32 inches Hg 4.3 First article inspection. 4.3.1 Submission. The contractor shall submit a first article sample as designated by the Contracting Officer con- sisting of three CCAs for inspection in acco
