DI-NUSU-82347

Mission Critical System Outside the Barrier Conducted Immunity CS116 Test Report

The CS116 Test Report documents the test-execution, data-recording, analysis, inspection, and reporting methods a contractor uses to assess and certify a mission critical system's HEMP conducted-immunity performance under MIL-STD-461 and MIL-STD-188-125.

Approval DateMarch 31, 2021

AMSC Number10242

Preparing ActivityDS

Project NumberNUSU-2021-009

OPR—

DTIC ApplicableNo

GIDEP ApplicableNo

Limitation—

Applicable Forms—

Approval Limitation—

Form Version—

DID Formatfree_text

963C CompliantYes

DISTRIBUTION STATEMENT A: Approved for public release; distribution is unlimited.

Supersedes

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Description & Purpose

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Application & Interrelationship

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Use & Relationship

The CS116 Test Report applies to both parts of military standard, MIL-STD-188-125 High-Altitude Electromagnetic Pulse (HEMP) Protection for Ground-Based Facilities Performing Critical, Time-Urgent Missions. This DID applies to fixed facilities in accordance with Part I (MIL-STD-188-125-1A) and to transportable systems in accordance with Part II (MIL-STD-188-125-2). This DID contains the format, content, and intended-use information for the data deliverable resulting from the conducted immunity CS116 test tasks described in section 5.8.1 of each part of MIL-STD-188-125, as applicable.

The purpose of CS116 testing the first article of every MCS installed outside the HEMP-protection subsystem's (HPS') low-risk electromagnetic barrier is to ensure that the MCS and any associated special protective measures (SPMs) will provide sufficient hardness to HEMP's conducted-threat environment. The CS116 test procedures, as codified by MIL-STD-461, provide some of the baseline information for assuring that the given MCS, with any SPMs, is adequate to pass HEMP-verification testing.

The CS116 Test Report documents the methods of test-execution, data-recording, analysis, inspection, and reporting that were used by the contractor to assess and document the results of the MCS's performance. For each individual MCS that was immunity tested per MIL-STD-461 CS116, an individual test report shall be prepared. The report provides the means for the Government to evaluate and certify the HEMP-protection performance results of the MCS and any associated SPMs, in that the report demonstrates compliance with respect to MIL-STD-461's pass and fail requirements and MIL-STD-188-125's CS116-test requirements.

The report includes discussion of recommended corrective actions, if needed.

If the MCS has already been MIL-STD-461 CS116 tested within seven years prior to its installation at the facility or integration with the system, then documentation of previous test plans, reports, and test data, should be attached as an appendix.

Preparation Instructions

1Reference documents.The applicable issue of the documents cited herein, including their approval dates and any applicable amendments, notices, and revisions, shall be as specified in the contract. The CS116 Test Report's classification shall be in accordance with any relevant facility- or system-specific classification guides and also the Defense Threat Reduction Agency (DTRA) Security Classification Guide for DoD Electromagnetic Pulse (EMP) Programs and Activities. (DTRA's security classification guide is available by mail request to ATTN: RD-NTSA, Dr. William Linzey, PhD, Defense Threat Reduction Agency, 8725 John J. Kingman Road, MSC 6201, Fort Belvoir, VA 22060-6201.)

2Format.Contractor format is acceptable for report (comma-separated values (CSV) is preferred data format).

3Content.The CS116 Test Report documents the test-execution, data-recording, analysis, inspection, and reporting procedures that were used by the contractor to perform the CS116 testing on MCS in accordance with MIL-STD-461 and MIL-STD-188-125.

3.1Administrative data.The CS116 Test Report shall contain an administrative section covering the following:

3.1.1Contract number, CDRL number, and date

3.1.2Authentication and certification by a qualified representative of the procuring activity for the test report

3.2Summary information.The CS116 Test Report shall summarize the following:

3.2.1Introduction, to include:

3.2.1.1General objectives of the CS116 test

3.2.1.2A general description of the MCS and associated SPMs that were tested

3.2.1.3A statement of any assumptions or limitations associated with the CS116 testing

3.2.1.4A summary of the CS116 test's pass and fail requirements per MIL-STD-461

3.2.1.5A specific statement whether or not the MCS, with any associated SPMs, passed all requirements, and a summary listing of any requirements that were not passed.

3.2.2Scope.A general description of overall test-requirements matrix that was used to verify the MCS and any SPM's compliance with MIL-STD-188-125's performance requirements, and an associated listing of the test results. Also, a description of the relative roles of tests, inspections, and analyses shall be provided. The following topics shall be included:

3.2.2.1Synopsis of the CS116 test procedures performed (as applicable), and references to detailed procedures

3.2.2.2Pass or failure performance results with respect to all requirements

3.2.2.3Anticipated impact of any failures

3.2.2.4Recommendations to resolve any failures

3.2.2.5Lessons learned for the MCS's hardness and testability

3.2.3Methods of demonstration.A general description of the procedures that were used to demonstrate the MCS and associated SPMs' compliance with each CS116 test performance requirement as listed in section 3.3 below.

3.2.4Engineering factors.Any important engineering factors that affected the test procedures, such as: physical-accessibility constraints of the system's topology, resource limitations, safety and security protocols, and precedent reports.

3.3Detailed information.For each MCS being CS116 tested, a single test report shall be prepared. The test report shall contain the following information:

3.3.1An identification of the MCS that was tested, including photographs, figures, or diagrams; and including serial numbers, version of software used (if any), and calibration status and due date (if applicable)

3.3.2The location of where the MCS was tested and the testing dates

3.3.3Identification of the test-team personnel and of the Government witnesses that were present

3.3.4A description, with diagrams, showing for the MCS all locations of all points of entry (POEs), external cable interconnections, and a description of any installed HEMP or other electromagnetic protection measures, including SPMs.

3.3.5Descriptions of the CS116 simulator and associated data acquisition equipment, to include the manufacturer, model, and serial numbers of each equipment item; detailed calibration procedures for the equipment; and calibration-traceability documentation

3.3.6Descriptions of the test procedures, including system, subsystem, and circuit configuration requirements; test configuration diagrams; test point locations and descriptions; step-by-step test procedures; and the approach to calculating norms-based design margins as required by MIL-STD-461

3.3.7Descriptions of methods for measuring noise (instrumental and local or ambient)

3.3.8A description of models, techniques, and tools used for preliminary analyses and predictions, and their specific application to the specific facility or system to be tested

3.3.9A description of the methods that were applied to quantify and evaluate any failures of the MCS and any associated SPMs' performance with respect to all pass and fail criteria

3.3.10Identification of the pass and fail criteria, and of any deviations from the requirements of MIL-STD-461 that occurred, along with an explanation of why these deviations were necessary

3.3.11Descriptions of the data-management procedures that were used, to include: data quality control procedures, data acceptability criteria, annotation and preservation of data records, and the methods to compare results to pass and fail criteria

3.3.12Identification of any safety risks encountered, and descriptions of procedures that were used to mitigate these risks, including any electromagnetic radiation hazards and electrical shock hazards

3.3.13Descriptions of the data-security and physical-security procedures that were applied

3.3.14A description of the test schedule as it was executed, including a listing of the prioritization of measurements

3.3.15Photographs and/or diagrams of the actual test set up, with identification of subsystems and hardware and a distance scale to allow pertinent horizontal/vertical/lateral measurements to be extracted

3.3.16A description of the MCS' operating conditions that were set during the CS116 testing (e.g., power-on/off, and any other equipment/cables connected to the MCS and data being transferred and processed during testing)

3.3.17A description of the methods that were used to simulate the operational performance of the MCS during the testing if the actual MCS operation during the testing was impractical

3.3.18Descriptions of how the raw and processed test data were recorded, and the electronic data format used to store the data (CSV is the preferred data format)

3.3.19Summary tables of measured quantities, with calculations and comparisons to pass and fail criteria, and depicting any associated onsets of MCS upset or damage

3.3.20Detailed presentation of data, as specified in the "data presentation" sections of the test procedure for CS116 in MIL-STD-461

3.3.21Copies of measured test results, including all raw and processed test oscillographic waveform test data in engineering units, with a description of the electronic data format and guidance for users to locate specific data within this format

3.3.22Findings from investigations into causes of failures, if any; and corrective actions recommended or, if performed, their re-test results

3.3.23A discussion of the uncertainties involved with the test procedure and measured quantities and any issues regarding the reproducibility of test results

3.3.24Descriptions of lessons learned, to include any insights learned during testing that could be applied to improving HPS performance and improving testing methodologies

3.3.25If applicable, proposed updates to the Hardness Maintenance and Hardness Surveillance plans (data item description DI-NUSU-####)

3.3.26Test conclusions, including a definitive statement of the hardness of the MCS to the CS116 conducted environment, based upon the results of the complete battery of CS116 tests and the supporting analyses

3.3.27References to applicable test plans and procedures

References

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