1、I INCH-POUND I MIL-PRF-62560B (AT) 23June1997 SUPERSEDING 14 August 1992 MIL-D- 625 6OA(AT) PERFORMANCE SPECIFICATION DISTRIBUTION BOX, ELECTRICAL This specification is approved for use by U.S. Army Tank-automotive and Armaments Command, Department of the Army, and is available for use by all Depart
2、ments and Agencies of the Department of Defense. 1. SCOPE 1.1 Scope. This specification covers the performance, test, manufacture and acceptance requirements for the distribution box, electrical, shown on Drawing 19207- 12292086, herein referred to as EDB (see 6.3.1). 2. APPLICABLE DOCUMENTS 2.1 Gen
3、eral. 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 examples. While every effort has been made to ensure the completen
4、ess of this list, document users are cautioned that they must meet all specified requirement documents cited in sections 3 and 4 of this specification, whether or not they are listed. Beneficial comments (recommendations, additions, deletions) and any pertinent data which may be of use in improving
5、this document should be addressed to: U.S. Army Tank-automotive and Armaments Command, ATTN: AMSTA-TR-EBLUE, Warren, MI 48397-5000 by using the Standardization Document Improvement Proposal (DD Form 1426) appearing at the end of this document or by letter. AMSC NIA FSC 6110 DISTRIBUTION STATEMENT A.
6、 Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62560B (AT) 2.2 Government documents. 2.2.1 Other Government documents, drawings, and publications. The following other Government docume
7、nts, 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. DRAWINGS ARMY 19207-12292086 - Distribution Box (1Al) (Interface). (Copies of this drawing are available from the U.S. Army Tank-au
8、tomotive and Armaments Command, ATTN: AMSTA-TR-E/BLUE, Warren, MI 48397-5000.) 2.3 Non-Government publications. The following document(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
9、 issue of the DoDISS cited in the solicitation. Unless 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) ASTM D2000 - Rubber Products in Automotive Applications
10、(DoD Adopted). (Application for copies should be addressed to the American Society for Testing and Materials, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.) 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 t
11、his 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 inspection in accordance with 4.3. 3.2
12、 Materials. Materials shall be in accordance with the manufacturers materials specifications for EDBs. Materials shall be capable of meeting all the operational and environmental requirements specified herein. Asbestos and cadmium materials shall not be used in 2 Provided by IHSNot for ResaleNo repr
13、oduction or networking permitted without license from IHS-,-,-MIL-PRF-62560B (AT) any form in any part of the EDB. No item, part or assembly shall contain radioactive materials in which the specific activity is greater than 0.002 microcuries per gram or activity per item equals or exceeds 0.01 micro
14、curies (see 4.5.1). 3.2.1 Dissimilar metals. Except where necessary to complete an electrical circuit, contact between dissimilar metals which would encourage galvanic action shall be avoided. Separation of dissimilar metals shall be accomplished by providing insulation between mating surfaces (see
15、4.5.1). 3.2.2 Recycled, recovered, or environmentally preferable materials. Recycled, recovered, or environmentally preferable materials should be used to the maximum extent possible provided that the materials meets or exceeds the operational and maintenance requirements, and promotes economically
16、advantageous life cycle costs. 3.3 Design and construction. The design and construction of the EDB shall be in accordance with the EDB manufacturers standards. EDBs shall conform to the envelope dimension, and the electrical and mounting interfaces as shown in Drawing 19207-12292086 (see 4.5.1). 3.3
17、.1 Rubber components. Rubber components, subject to ozone attack and where function and durability are impaired by the effect of ozone, shall conform to ASTM D2000 C12 requirements. Rubber components shall be resistant to petroleum oils and lubricants, servicing fluids, and cleaning fluids where the
18、ir intended use requires it (see 4.5.1). 3.4 Performance. 3.4.1 Compatibility with 28-volt direct current (Vdc) source. The EDB shall be capable of operating from a 28 Vdc source (see 4.5.3.1). NOTE: Unless otherwise specified herein, “28 Vdc” shall refer to nominal 27.5 to 28.5 Vdc (see 4.5.3.1); “
19、ground” shall refer to pin El; and “momentarily” shall refer to a time duration of 90 to 220 milliseconds (ms). 3.4.2 Relay functions. The relays shall operate as follows (see 4.5.3.2): 3.4.2.1 Cold start relay, K1. With 28 Vdc applied across J8-AZ (plus (+) and J8-E (minus (-), continuity shall exi
20、st between J10-A and J7-A and between J10-A and J7-B. 3.4.2.2 Fire suppressant relay, K8. Operation of K8 relay shall be as follows: 3 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62560B (AT) a. When 28 Vdc is applied across 52-5 and groun
21、d, J8-BR is connected to ground through a 1.0 kilohm, 5 percent (%), 0.25 watt (W) resistor, and toggle switch S2 is momentarily activated, the voltage at J8-BR shall be less than 0.5 Vdc. b. When 28 Vdc is applied to 52-5 and a 10.0 k 1.0 Vdc, and a 125 k 50 ms pulse is applied between J1-C and gro
22、und, the relay shall latch as indicated by the constant 28 Vdc source voltage at J8-BR, referenced to ground. 3.4.2.3 Start cutout relay, K3. The operation of K3 shall be as follows: a. 28 Vdc is applied across J8-AA and ground. b. Control signal is applied across J7-M and J7-N, with J7-N externally
23、 connected to ground. c. Control signal characteristic is a sinusoidal wave of 2.5 minimum amplitude with a source impedance greater than 100 ohms. d. Critical control signal frequency is 575 to 1100 hertz (Hz). e. For control signal frequencies less than critical value, J8-BC shall be continuous wi
24、th ground; for control signal frequencies greater than critical value, contact between J8-BC and ground shall be open. 0.5 V peak-to-peak (p-p) 3.4.2.4 Lamp test relay, K4. With 28 Vdc applied to J8-AF, J10-A, and J8-AA, and El grounded, the following shall occur: a. The voltage at J8-AE and J8-H sh
25、all be within 1.0 Vdc of J10-A. b. The voltage at J8-T shall be within 1.0 Vdc of ground. c. The warning signals of 3.4.3 shall occur. 3.4.2.5 Slave power relay, K5. 3.4.2.5.1 Slave, proper polarity. With 28 Vdc applied across 513 socket (positive) and 513 shell (negative), continuity shall exist be
26、tween 513 socket and J10-A, and the green portion of diode DS-1 shall illuminate. 3.4.2.5.2 Slave, reverse polarity. With 28 Vdc applied across 513 socket (negative) and 513 shell (positive), continuity shall not exist between 513 socket and J10-A, and the red portion of diode DS-1 shall illuminate.
27、 3.4.2.5.3 Master. With 28 Vdc applied across J10-A and ground, and switch S1 momentarily depressed, continuity shall exist between J10-A and 513 socket, and the green portion of diode DS-1 shall illuminate. 3.4.2.6 Hydraulic pump motor relay, K7. With 28 Vdc applied across J8-U or J3-C (positive) a
28、nd J8-BD (negative), continuity shall exist between J10-A and J17-A. 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62560B (AT) 3.4.3 Warning signal function. With 28 Vdc applied across J8-AA and ground, the grounding of J4-X, J7-R, J7-S,
29、J7-U, J7-a, J7-c, J7-T, or the energizing of relay K4 as specified in 3.4.2.4 shall cause the following signals (see 4.5.3.3): a. Head phone signal at J8-C is a signal of 760 k 150 Hz, interrupted at a rate of from 0.5 to 1.0 seconds. The signal shall persist until the ground is removed, K4 is de-en
30、ergized, or J8-AC is grounded. b. Flasher signal at J8-AJ is a signal of 1.5 k 0.5 Hz. The signal shall persist until ground is removed or K4 is de-energized. 3.4.4 Vehicle motion function. The input voltage for the vehicle motion circuitry shall be 23 k 2.5 Vdc, applied across J4-W and ground. The
31、input signal shall be applied between J9-M and J9-N. The output signal shall be between J4-K and ground. For input voltages less than the switch point, the output shall be not greater than 2.0 Vdc. For input voltages greater than the switch point, the output shall be not less than 14.0 Vdc. The EDB
32、shall function with an input signal having the following functions (see 4.5.3.4): a. Sine wave: 5 to 70 Hz. b. Output resistance: 100 k 20 ohms. c. Maximum amplitude: 25 V, root means square (rms). d. Switch: Between 2.6 and 9.1 V rms. 3.4.5 Simplified test equipmentinternal combustion engine (STEfi
33、CE) - test module diagnostic equipment (TMDE). 3.4.5.1 Terminations. Resistor terminations and diode terminations of contacts in connectors 514 and J15 shall be in accordance with Drawing 19207-12292086 (see 4.5.3.5.1). 3.4.5.2 Top dead center (TDC) signal. When the following inputs are present, the
34、 resultant signal at J15-c shall be a 6 to 20 ms pulse, as shown in figure 1, with an amplitude within 1.5 Vdc of the voltage source used in step b (see 4.5.3.5.2). (One pulse shall be generated for each negative-going transition of the input signal at J16-G.) a. 28 Vdc is applied across J8-AA and g
35、round. b. A voltage source between 5.0 and 12.0 Vdc is applied to J14-c through a resistor that will limit the current to 2.2 k 0.3 milliamperes (mA). c. A 2.0 k 0.5 Vdc p-p square-wave signal symmetrical with respect to ground with a frequency from 1 to 20 Hz applied to J16-G. 5 Provided by IHSNot
36、for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PFW-62560B (AT) 0.05 to 1.0 sec INPUT SIGNAL 0.0 Vdc AT J16-G OUTPUT SIGNAL 0.0 TO AT J15-C 0.5 Vdc b-d - 6to20ms FIGURE 1. Top dead center signal. 3.4.6 Overload protection. Overload protection of the 28 Vdc source s
37、hall be in accordance with Drawing 19207-12292086 (see 4.5.3.6). 3.4.7 Wiring continuity. Wiring continuity shall be in accordance with table I (see 4.5.3.7). TABLE I. 6 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PFW-62560B (AT) From connect
38、or nin J5 -B J5-C J5 -D J5 -E J5 -F J5-G J5 -H J5-J J5-K J5 -L J5 -M J5 -N J5 -P J6-A J6-D J6-G J6-H J6-J J6-K J6-L J6-U J6-V J7-A J7-F J7-G J7-f J8-A J8-B J8-D J8-K J8-M J8-T J8-V TABLEI. Wirj To connector pin J4-S J12-B J4-J J12-C J4-M J12-D J4-H J12-E J4-U J12-F J4-N J12-G J4-P J12-H J4-R J12-J J
39、4-T J12-K J4-b J12-L J4-c J12-M J4-G J12-N J4-a J12-P J7-F J7-F J8-M J7-F J6-W J6-H J7-F J6-X J7-F J7-B E2 J7-F J8-b J3-F J7-P J11-B E2 J7-n J6-G J3-X J7-L g contin 7 ty - Continued. From connector pin J14-M J14-N J14-O J14-P J14-S J14-T J14-V J14-W J14-X J14-Y J14-Z J14-a J14-b J14-c J14-f J14-g J1
40、4-k J14-m J14-n J14-p J14-s J14-U J14-v J14-w J14-x J14-y J14-z J14-AC J15-E J15-S J15-T J15-V J15-W J15-X J15-a J15-c J15-g J15-k J15-m J15-n J15-U J15-v J15-w J15-y J15-z J15-AA J15-AC To connector pin J16-F J16-C J16-P J16-E J7-E J16-T J8-BN J2-C J2-B J14-W J2-E J2-F J2-F J15-c J16-a J16-b J16-h
41、J16-g j16-1 J16-J j16-5 J16-N J16-M J16-e J16-f J16-B J16-A J14-g J8-BN J8-BT J16-D J17-A J2-C J15-g J15-b J14-c J16-X J16-Y J16-Z J15-g J16-V J16-U J15-n J15-w J2-G J15-y J15-AA Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PFW-62560B (AT) Fro
42、m connector nin J8-AT J8-AV J8-BA J8-BC J8-BE J8-BF J8-BH J8-BJ J8-BK J8-BM J8-BN J8-BT J9-A J9-B TABLEI. Wirj To connector pin J7-H J7-V J3-d J15-L J3-A J3 -B J3-b J3-a J3-c J3-Z J11-A J3-H J8-AW J8-J g contin ty - Continued. From connector pin J15-AG J16-A J16-D J16-F J16-K J16-L J16-U J16-V J16-W
43、 J16-Y J16-Z J16-b J16-c To connector nin J16-c J14-z J7-F J15-M J14-AG J14-n J15-v J15-U J15-f J15-k J15-m J14-g J15-AG 3.5 Environmental conditions. 3.5.1 Low temperature. The EDB shall demonstrate no performance degradation and show no evidence of damage or deformation when stored and operated at
44、 temperatures down to -60 degrees Fahrenheit (OF) (-51 degrees Celsius (OC) (see 4.5.4.1). 3.5.2 High temperature. The EDB shall demonstrate no performance degradation and show no evidence of damage or deformation when stored at temperatures up to 160F (71C) and operated at temperatures up to 130F (
45、54.5“C) (see 4.5.4.2). 3.5.3 Shock. The EDB shall demonstrate no performance degradation and show no evidence of damage or deformation after being exposed to sawtooth shock pulses of 40 gravity units (g) for 11 ms time duration applied along each of the three major axes (see 4.5.4.3). 3.5.4 Vibratio
46、n. The EDB shall demonstrate no performance degradation and show no evidence of damage or deformation after being subjected to vibration levels, in each of the three major axes, of 1.5 and 4.2 g in the frequency range of 5 to 500 to 5 Hz with a sweep time of 15 minutes, except the horizontal axis vi
47、bration level shall be 0.4 g at frequencies of 7 to 20 Hz (see 4.5.4.4). 3.5.5 Humidity. The EDB shall demonstrate no performance degradation and show no evidence of damage or deformation after being exposed to a relative humidity ranging from O to 98% (see 4.5.4.5). 3.5.6 Steam and wateriet cleanin
48、g. The EDB shall demonstrate no performance degradation and show no evidence of damage or deformation after being subjected to steam 8 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-MIL-PRF-62560B (AT) cleaning, using high pressure steam and a comme
49、rcial heavy-duty non-abrasive detergent, followed by waterjet cleaning (see 4.5.4.6). 3.5.7 Environment stress screening (ESS). Unless otherwise specified (see 6.2), EDB shall be subjected to ESS (see 4.5.4.7 and 6.3.2). 3.6 Identification marking. Part identification shall be as specified on Drawing 19207-12292086 (see 4.5.2). 3.7 Workmanship. The EDB shall be free of any electrical or physical defect which would a
