1、A-A-55lV8 A-A-55148 December 7, 1993 COMMERCIAL ITEM DESCRIPTION CONNECTORS, ELECTRICAL, IEEE 488 COMPATIBLE, RECTANGULAR, MINIATURE, POLARIZED SHELL, 24 POSITION, BACK TO BACK INTERFACE BUS, CABLE TERMINATING, INSULATION DISPLACEMENT, SCREW LOCKING. The General Services Administration has authorize
2、d the use of this Commercial Item Description (CID). Abstract. This CID covers the general requirements for a polarized shell, 24 pin back to back electrical digital interface bus connector. IEEE 488 interface standard, and require termination of a discrete wire type cable. This connector can be use
3、d in applications that require conformance to the Application. Connectors covered by this CID are intended for commercial/industrial applications and may be used in military systems where individual environmental and performance requirements can be met. Part or Identifying Number (PIN). The PIN for
4、the CID shall be as shown in the following example. A-A-55148 - o1 I 1 I l I CID number I Dash number Salient characteristics. Desisn, construction, and dimensions. Design construction and dimensions shall be as specified on figure 1 and in accordance with IEEE 488. Contacts. The contacts are formed
5、 of a high conductive, high strength copper alloy with gold over nickel plating in the contact area. Connector housings. Connector housings are moulded from black polyphenylene plastic material for high impact and dielectric strength. Metric jackscrews. Termination wire range. Metric jackscrews are
6、made of black oxide plated carbon steel. Terminations are insulation displacement type which accommodate wire ranges of 26-27-28 AWG stranded (7 strand) wire. Contact rating. Termination resistance. The contact resistance shall be 20 milliohms maximum initial. Dielectric withstanding voltaqe. Contac
7、ts are rated at 5.0 amps minimum at 25C. There shall be no breakdown of the insulating material when subjected to 1000 V ac for one minute between adjacent contacts of the mated connector assemblies. Matinq force. Unmating force. Connector mating force shall not exceed 4.64 newtons (1.04 pounds) max
8、imum per contact, Connector unmating force shall not exceed 0.46 newton (0.11 pound) minimum per contact O AMSC N/A FSC 5935 DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS
9、-,-,-A-A-55148 m 9999974 OLbLb03 4b8 m A-A-551 48 4 MAX II I b2.16 -0.013 4 h 36.20 MAX - RECEPTACLE M3.5 x 0.6-6H x 6.5 DEEP M3.5 x 0.6 -69 “1 1“ II I k2.16 r0.013 r: 36.22 MIN w NOTES: 1. Dimensions are in millimeters. 2. The US government preferred system of measurement is the metric SI system. H
10、owever, since this item was originally designed using inch-pound units of measurement, in the event of conflict between the metric and inch-pound units, the inch-pound units shall take precedence. e mm Inches 0.013 .O005 0.36 .O142 2.16 .O85 11.94 .470 12.14 .478 15.75 .620 36.20 1.425 36.22 1.426 4
11、6.79 1.842 55.25 2.175 4.88 .i92 Figure 1. Connector, 24 position, back to back interface bus. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-A-A-55148 9999974 Olb1604 3T4 A-A-55148 Durability. termination resistance shall not exceed a change greate
12、r than 35 milliohms maximum from initial resistance. There shall be no indication of physical damage. Operatinq temperature. Vibration. The connector, or hardware when assembled to the connector, shall exhibit no evidence of breaking, cracking, or loosening of parts when subjected to vibration of 10
13、-55-10 Hz traversed in 1 minute at 2 millimeters (.O6 inch) total excursion for 2 hours in each of 3 mutually perpendicular planes. Physical shock. The connector or hardware when assembled to the connector, shall exhibit no evidence of breaking, cracking, or loosening of parts when subjected to 50 G
14、s half-sine wave shock of 11 milliseconds duration, 3 shocks in each direction applied along the 3 mutually perpendicular planes for a total of 18 shocks. Durability shall consist of 200 cycles of mating and unmating and upon completion the The operating temperature range shall be from -40C to 75C.
15、Requlatory requirements. This section is not applicable to this CID. Quality assurance provisions Responsibility for inspection. The contractor is responsible for the performance of all inspection, examination and test requirements specified in the contract or purchase order. or any other facilities
16、 suitable for inspection requirements specified in the contract or purchase order, unless otherwise disapproved by the procuring activity. perform any of the inspections set forth in the contract or purchase order where such inspections, examinations and tests are deemed necessary to assure supplies
17、 and services conform to prescribed requirements. The contractor may use his The procurement activity reserves the right to Contractor certification statement. The contractor shall certify and maintain objective quality evidence that the product offered meets the requirements of this CID and that th
18、e product conforms to the producers own drawings, specifications, standards, quality assurance practices, and is the same as the product provided as a bid sample. prior to the first delivery and thereafter as may be otherwise provided for under the provisions of the The procurement activity reserves
19、 the right to require proof of such conformance contract . Certificate of compliance. A certificate of compliance shall accompany CID. Packaging. Preservation, packaging, packing, labeling, and marking. Preservation, shall be as specified in the contract or purchase order. all connectors supplied to
20、 this packaging, labeling and marking Notes. process of procuring the item, but is not mandatory. This section contains relevant information which is useful to buyers, users and suppliers in the Referenced document. Other Publication INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE) IEEE 488
21、- IEEE Standard Digital Interface for Programmable Instrumentation. (Applications for copies should be addressed to the Institute of Electrical and Electronics Engineers (IEEE), IEEE Service Center, 445 Hoes Lane, P.O. Box 1331, Piscataway, NJ 08855-1331.) 3 Provided by IHSNot for ResaleNo reproduct
22、ion or networking permitted without license from IHS-,-,-A-A-551 48 9999974 OLbLbO5 230 Vendor commercial CID PIN A-A-55148- PIN o1 554815-1 A-A-55148 Vendor CAGE number 00779 Ordering data. Acquisition documents should specify the following: a. CID document number and revision and CID PIN. b. Quali
23、ty assurance provisions. c. Packaging requirements. Comments. Comments on this CID should be directed to Defense Electronics Supply Center, 1507 Wilmington Pike, ATTN: DESC-EMT, Dayton, OH 45444-5000, or telephone (513) 296-5391. Sources of supply. they become available. A suggested source of supply
24、 is listed herein. Additional sources will be added as TABLE I. Suggested sources of supply. Vendor CAGE number Vendor name and address 00779 AMP, Incorporated 470 Friendship Road Harr i sburg , PA 171 11 -1 203 CIVIL AGENCY COORDINATING ACTIVITY: GSA - 7FXE PREPARING ACTIVITY: DLA-ES (Project 5935-D434) 4 Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
