Night Vision Device Test Set Purchase Description v 1.4.docx

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This is a Purchase Description for a Night Vision Device Test Set (NVDTS), a modernized, multi-spectral, automated test system designed to verify operational and performance parameters during field- and depot-level maintenance of Army aviation and ground-based night vision systems. The NVDTS must evaluate a comprehensive range of legacy Image Intensifier (I2) devices, thermal weapon sights, fused multi-band systems (such as ENVG-B), and digital augmented reality displays (including IVAS). The system will support testing of 40+ specific NVD models and variants manufactured by entities including Elbit Systems of America, L3Harris, ITT Inc., Northrop Grumman Corp., Leonardo DRS, and others, with technical manuals and national stock numbers provided for each device category including goggles/monoculars, weapon sights, specialized sights, and fusion/digital systems.

The specification establishes mandatory threshold requirements and desired objective capabilities for hardware subsystems, including an off-axis parabolic collimator with 6.0-inch aperture, precision motorized target/reticle wheel, dual-plate thermoelectric blackbody source (operating +5°C to +50°C), low-light visible/near-infrared source, and a scientific-grade digital image capture system with 24-megapixel resolution at up to 2,500 frames per second. Software requirements mandate a secure local database with automatic logging of 40+ mandatory data fields per test session, role-based access controls, graphical user interface with adjustable display brightness and tactical darkroom mode, compliance with MIL-PRF-28800G Class 3 and applicable DoD standards (MIL-STD-461G, MIL-STD-810H, MIL-STD-882E), and export capabilities in CSV and JSON formats. The system must achieve full deployment readiness in under 15 minutes, complete power-on self-diagnostics in under 2 minutes, support rapid UUT reconfiguration in under 3 minutes, feature a physical emergency abort button with 100-millisecond response time, include a high-luminance display (minimum 1,000 nits) for sunlight readability, and maintain 500 GB of dedicated storage supporting a minimum of 1,000 complete test sessions with automated data management protocols.

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Text version

TEMOD-26-01

Revision: - 30 September 2026

PURCHASE DESCRIPTION

FOR THE

NIGHT VISION DEVICE TEST SET

Version 1.4

Prepared by:

Product Director Test, Maintenance, and Diagnostic Equipment Building 3651Army TACMS Road Redstone Arsenal, Alabama 35898-5000

DISTRIBUTION STATEMENT A. Approved for public release. Distribution is unlimited.

1.0. Scope.

1.1. Scope. This specification establishes the performance requirements for a Night Vision Devise (NVD) Test Set (NVDTS). The NVDTS will be used to verify operational and performance parameters during maintenance actions and identify all repair actions necessary to return the NVD to a functional status for the Army aviation and ground-based NVDs.

The NVD will utilize Test Program Sets (TPS) that minimize subjective human interpretation of parameters. The specific NVD configurations subject to qualification and verification under this NVDTS comprise:

Model Number
Manufacture(s)
Identifier

(Line Item Number (LIN) / National Stock Number (NSN) Technical Manuals

Goggles / Monoculars

AN/ANVIS-7
Elbit Systems of America
LIN: A84881

NSN: 5855-01-424-2286,

5855-01-424-2284, 585-01-350-0349, 585-01-459-5024, 5855-01-459-5023

TM 11-5855-300-10

TM 11-5855-300-23&P

TB 11-5855-300-23

AN/AVS-6
Sierra Pacific Innovations Corp.
LIN: A06352

NSN: 5585-01-475-7061

TM 11-5855-263-10

TM 11-5855-263-23&P

TB 11-5855-298-35

TM 11-5855-313-10

TM 11-5855-313-23&P

AN/AVS-9
Elbit Systems of America
NSN: 5855-01-619-6079
AN/PVS-5
ITT Inc.

Varo Inc.

Litton Industries

LIN: N04456

NSN: 5855-00-150-1820

TB 11-585-298-33

AN/PVS-5A
ITT Inc.

Varo Inc.

Litton Industries

LIN: N04456

NSN: 5855-00-150-1820

TB 11-5855-298-34

AN/PVS-5B
ITT Inc.

Varo Inc.

Litton Industries

LIN: N04456

NSN: 5855-00-150-1820,

5855-01-228-0938

TB 11-5855-298-35

AN/PVS-7
ITT Inc.

L3Harris Litton Industries

LIN: N05482

NSN 5855-01-228-0939,

5855-01-228-0937, 5855-01-422-5413

TM 11-5855-262-10

TM 11-5855-262-23&P

TB 11-5855-298-35

AN/PVS-14
Elbit Systems of America

L3Harris

LIN: M79678

NSN: 5855-01-432-0524

TM 11-5855-306-10

TM 11-5855-306-23&P

AN/PVS-15
L3Harris

Litton Industries Northrop Grumman Corp.

LIN: A05014

NSN: 5855-01-477-8741

AN/PVS-21
Sensor Technology Systems Inc.

Steiner Defense

NSN: 5855-01-511-0994

AN/PVS-31A
L3Harris
LIN: S60342

NSN: 5855-01-618-8462

TM 9-5855-1916-13&P

AN/PVS-31D
Elbit Systems of America
LIN: FA5503

NSN: 5855-01-685-2918

Weapon Sights

AN/PVS-4
ITT Inc.

Varo Inc.

Litton Industries Optic-Electronic Corp.

LIN: FA5545

NSN: 5855-01-017-7366

TM 11-5855-213-10

TM 11-5855-213-23&P

AN/PVS-10
Varo Inc.

Litton Industries Northrop Grumman Corp.

NSN: 5855-01-410-8979
TM 11-5855-303-12&P
AN/PVS-17B
Litton Industries

Northrop Grumman Corp.

L3Harris

LIN: FA5523

NSN: 5855-01-491-0140

AN/PVS-17C
Litton Industries

Northrop Grumman Corp.

L3Harris

LIN: FA5523

NSN: 5855-01-491-6967

AN/PVS-26 with PCS-26
Knight’s Armament
LIN: FA55A8

NSN: 5855-01-538-8121

TM 9-5855-1916-13&P

AN/PVS-30
Knight’s Armament
LIN: S60342

NSN: 5585-01-567-9243

TM 9-5855-1916-13&P

Heavy / Specialized Sights

AN/TVS-5
Optic-Electronic Corp.

Varo Inc.

Northrop Grumman Corp.

LIN: N04596

NSN: 5855-00-629-5327

AN/UAS-11
Kollsman, Inc.

Elbit Systems of America

LIN: N05050

NSN: 5855-01-083-9051

AN/VAS-5
Leonardo DRS
LIN D61225

NSN: 5855-01-414-5969

Thermal Weapon Sights / Clip-ons

AN/PAS-13
RTX Corp. (formerly Raytheon Technologies)
LIN: S60356

NSN: 5855-01-383-6860,

5855-01-600-2717, 5855-01-523-7707, 5855-01-524-4308

TM 11-5855-316-10

TM 11-5855-316-23&P

TM 11-5855-317-23&P

TM 11-5855-324-10

AN/PAS-35
Leonardo DRS

Teledyne FLIR Defense Products

LIN: V05010

NSN: 5855-01-656-6330

TM 11-5855-343-10

TM 11-5855-343-23&P

FWS-I (Family of Weapon Sights – Individual)
Leonardo DRS

BAE Systems

LIN: W05111

NSN: 5855-01-677-5935

Fusion and Digital Systems

AN/PSQ-20

Fusion / Thermal NVGs ITT Inc. (formerly ITT Corporation) L3Harris Teledyne FLIR Defense Products

LIN: N07848

NSN: 5855-01-534-6449

TM 11-5855-322-10

TM 11-5855-322-23&P

AN/PSQ-20A
ITT Inc.
LIN: N07848

NSN: 5855-01-603-0489

TM 11-5855-335-10

TM 11-5855-335-23&P

AN/PSQ-20B
L3Harris
LIN: N07848

NSN: 5855-01-603-0486

TM 11-5855-336-10

TM 11-5855-336-23&P

AN/PSQ-36
L3Harris
NSN: 5855-01-621-2725
AN/PSQ-39
L3Harris
NSN: 5855-01-650-2680
AN/PSQ-40
L3Harris

Elbit Systems of America

LIN: V05010

NSN: 5855-01-649-9837

TM 11-5855-341-10

AN/PSQ-42
L3Harris

Elbit Systems of America

LIN: E05043

NSN: 5855-01-681-0576

TM 11-5855-1099-10

TM 11-5855-347-20&P

AN/PSQ-43
L3Harris

Elbit Systems of America

NSN: 5855-01-681-8536

AN/PSQ-44
L3Harris

Elbit Systems of America

LIN: N05013

NSN: 5855-01-693-5366

TM 11-5855-348-10

TM 11-5855-348-20&P

IVAS (Integrated Visual Augmentation System)
Microsoft

Collins Aerospace LIN: To Be Determined

1.2. Classification. The NVDTS shall meet the requirements of the Performance Specification titled, “Test Equipment For Use With Electrical and Electronic Equipment, General Specification For,” MIL-PRF-28800G Class 3 as tailored by this Purchase Description.

1.3. Interpretation of Threshold and Objective Requirements.

1.3.1. Standard of Compliance. Requirements in this specification are defined as either "Threshold" (mandatory baseline capabilities) or "Objective" (desired future capabilities).

1.3.2. Default Requirement Status. If a paragraph, subparagraph, or individual requirement in this specification is not explicitly labeled as an "Objective," the vendor shall interpret and assume that it is a mandatory "Threshold" requirement.

1.3.3. Binding Nature of Thresholds. All threshold requirements must be fully met by the proposed system design to be considered compliant for contract award and subsequent Government acceptance testing.

2.0. Applicable Documents.

2.1. General. 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 completeness of this list, document users are cautioned that they must meet all specified requirements of documents cited in this specification, whether or not they are listed.

2.2. Government Documents.

2.2.1. Specifications, standards, and handbooks. The following specifications, standards, and handbooks form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

DEPARTMENT OF DEFENSE INSTRUCTION

DoDI 8510.01 Risk Management Framework (RMF) for DoD Information Technology (IT)

DEPARTMENT OF DEFENSE SPECIFICATIONS

MIL-PRF-28800G Test Equipment for Use with Electrical and Electronic Equipment, General Specification for Class 3

DEPARTMENT OF DEFENSE STANDARDS

MIL-STD-461G Requirements for the Control of Electromagnetic Interface Characteristics of Subsystems and Equipment

MIL-STD-810H Environmental Engineering Considerations and Laboratory Tests

MIL-STD-882E Department of Defense Standard Practice System Safety

MIL-STD-1472H Human Engineering

MIL-STD-3009 Lighting, Aircraft, Night Vision Imaging System (NVIS) Compatible

Copies of specifications and standards are available online at https://assist.dla.mil.

FEDERAL INFORMATION PROCESSING STANDARDS

FIPS 140-2 Security Requirements for Cryptographic Modules

2.2.2. Other Government documents, drawings, and publications. The following other Government documents, drawings, and publications form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

CMT6695-92-A08 Transfer Set Standards AN/GSM-440

SC 5180-91-R63 Tool Kit, Electronic Equipment: TK-17/G

TB 43-180 Calibration and Repair Requirements for the Maintenance of Army Materiel

2.3. Non-Government publications. The following documents form a part of this document to the extent specified herein. Unless otherwise specified, the issues of these documents are those cited in the solicitation or contract.

ASTM INTERNATIONAL

ASTM E1213 Thermal Imaging MRTD Testing Services

INTERNATIONAL ELECTROTECHNICAL COMMISSION (IEC)

IEC 61010-1 Safety Requirements for Electrical Equipment for Measurement, Control and Laboratory Use

INSTITUTE OF ELECTRICAL AND ELECTRONICS ENGINEERS (IEEE)

IEEE 802.3 Standard for Ethernet

IEEE 802.1X Standard for Port-Based Network Access Control

IEEE C62.41 Guide on the Surges Environment in Low-Voltage (1000 V and Less) AC Power Circuits

INTERNATIONAL ORGANIZATION FOR STANDARDIZATION (ISO)

ISO 8601 Data elements and interchange formats – Information interchange – Representation of dates and times

NORTH ATLANTIC TREATY ORGANIZATION (NATO)

NATO STANAG 4349 Measurement of the Minimum Resolvable Temperature Difference (MRTD) of Thermal Cameras

2.4. Order of Precedence. Unless otherwise noted herein or in the contract, in the event of a conflict between 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.

3.0. Hardware Requirements. When applicable, the NVDTS shall comply with all defined threshold requirements as a mandatory minimum, with objective requirements representing the targeted operational capabilities.

Hardware Subsystem
Component Name
Minimum Technical Requirement
Target Measurements Supported
Optical Bench and Stimulus Projection
Off-Axis Parabolic (OAP) Collimator
Aperture: ≥ 6.0 inches

(152.4 millimeter (mm))

· Luminance/System Gain

· Optical Resolution (USAF 1951)

· Spot Defects and Distortion

· Multi-band Boresight Alignment

· Augmented reality (AR) Overlay Validation

Focal Length: ≥ 30.0 inches (762 mm)

Coating: Broadband metallic Gold or Protected Aluminum (>96% reflectivity from 0.4 micrometers (µm) to 14 µm)

Wavefront Error: ≤ frequency (λ)/10 at 632.8 mm

Precision Motorized Target / Reticle Wheel
Substrate: High-precision Chrome-on-Glass/Quartz (Visible/Near-Infrared (NIR)) and high-emissivity micro-etched metal (infrared radiation (IR))
· Limiting Spatial Resolution

· Distortion and Halo Testing

· Multi-band Boresight Alignment

· Image Quality (Modulation Transfer Function (MTF))

Target Array: USAF 1951 resolution target, Dot-Matrix geometric grid, Slanted Knife-Edge, 0.19 mm pinhole aperture, and crosshair alignment targets

Thermal and Light Engines
Dual-Plate Thermoelectric Differential Blackbody
Temperature Range: +5.000° Celsius (C) to +50.000°C
· Minimum Resolvable Temperature Difference (MRTD)

· Noise Equivalent Temperature Difference (NETD)

· Non-Uniformity Correction (NUC) Validation

· Thermal Contrast Transfer

Resolution/Stability:

±0.001°C resolution / ±0.002°C temporal stability

Surface Emissivity:

Emissivity (ε) ≥ 0.98 ± 0.01 across Mid-Wave Infrared (MWIR) / Long-Wave Infrared (LWIR) bands

Sensors: Micro-Kelvin resistance temperature detector (RTD) closed-loop monitoring

National Institute of Standards and Technology (NIST) -Traceable Low-Light Visible/NIR Source
Color Temperature: Stable 2856 Kelvin (K) ± 50K (Tungsten-Halogen equivalent via calibrated, temperature-compensated Light Emitting Diode (LED) matrix)
· Input Photocathode Illuminance

· Low-Light/High-Light Resolution

· Signal-to-Noise Ratio (SNR)

· Equivalent Background Illumination (EBI)

Illuminance Range: 1.0 x 10-7 to 20.0 lux continuous attenuation

Monitor Feedback: Integrated silicon photodiode feed-forward loop

Digital Image Capture System
A scientific-grade digital image sensor that meets the resolution, frame rate, read noise, and digitization requirements defined in this table. The sensor shall feature active thermoelectric cooling to a minimum of

-10°C.

Native Resolution: ≥ 24 Megapixels (6000 x 4000 pixels)
· Digital Display / Latency Validation

· Rapid Target Acquisition (RTA) Timing

· Pixel Mapping and Defect Tracking

· Scintillation Noise Logging (SNR)

· Image Quality (MTF/Feature Pyramid Network)

Frame Capture Rate: Dual-Mode architecture:

- High-Res Mode: ≥ 120 frames per second (fps) at full resolution (oversampling display)

- High-Speed Mode: ≥ 2,500 fps at localized Regions of Interest (ROI)

Temporal Read Noise: ≤ 1.0 e- root mean square (RMS) with thermoelectric cooling down to -10°C

Digitization Depth: 16-bit analog-to-digital (A/D) resolution

Interchangeable Eyepiece Optical Relay Modules
Module A (ENVG-B Form Factor): Telecentric imaging lens with a native distortion profile <0.05% and standard 7 mm exit-pupil matching optical aperture
· Optical Distortion and Halo Testing

· Multi-band Boresight Alignment

· AR Overlay Validation

· Latency and RTA Spatial Lag Tracking

Module B (IVAS Wide-Field Waveguide): Custom ultra-wide field telecentric mapping lens providing linear spatial imaging across a full 80° dynamic display field of view without peripheral color fringing.

Data Bus and Radio Frequency (RF) Interfaces
Tactical Data Communication and RF Transceiver Hub
Data Interfaces: MIL-STD-1553, Gigabit Ethernet, high-definition Multimedia Interface (HDMI), and Camera Link ingestion hardware links
· Rapid Target Acquisition (RTA) Network Ingestion

· AR Coordinate Sync Injection

· Video Frame Jitter and Artifacting Checks

RF Emulation Suite:

Software-defined radio (SDR) module matching military personal area networks, including Intra-Soldier Wireless (ISW) and Ultra-Wideband (UWB) tracking channels

Enclosure: Integrated RF Anechoic, light-tight dark chamber (0.0 lux background isolation, high electromagnetic interference (EMI) attenuation shielding)

Electrical Data Acquisition (DAQ) and Control
High-Sampling DC Power Analyzer and DAQ Card
Programmable Power Rails: 2.0 to 3.8 Voltage Direct Current (VDC) with microvolt-level regulation
· Electrical Current Draw Profiles

· Power Monitoring Testing

· Dynamic Gating Transient Analysis

· Photon-to-Digital Latency Sync

DAQ Sampling Frequency: ≥ 500 kilohertz (kHz) simultaneously logging low-side shunt voltage drops

Synchronization Unit: Hardware transistor-to-transistor logic (TTL) pulse master clock generator (20 Megahertz (MHz)) linking stimulus emitters, current shunts, and camera shutter gates

3.1. System Modularity.

3.1.1. System Modularity (Threshold). The NVDTS shall utilize modular architecture encompassing both physical and electrical domains to support the independent testing of all identified NVDs modules.

3.1.1.1. Physical Interchangeability. The system shall allow the addition and removal of modular mechanical interface sleds or mounting brackets in under 15 minutes utilizing only common hand tools contained within the standard-issue Tool Kit, Electronic Equipment: TK-17/G (SC 5180-91-R63).

3.1.1.2. Electrical Interface Modularity. The NVDTS shall utilize interchangeable cables or data interface adapters to connect specific Unit Under Tests (UUT) to the test set’s universal backplane. This interface shall provide stable test power and establish a two-way data link.

3.1.1.3. Commonality and Interoperability. Hardware commonality shall be maximized across all TPS configurations. Cable designs shall utilize standardized, modular architecture to maximize reuse and minimize the total quantity of unique part numbers required across the full suite of TPS variants.

3.1.2. System Modularity (Objective). In addition to the threshold requirements, the system shall meet the following objective modularity capabilities.

3.1.2.1. Tool-less Hardware Integration. The system shall allow for the complete physical integration and removal of all interface modules in under 5 minutes without the use of any tools. The hardware modularity shall include a universal optical bench and modular rails to accommodate new and future interchangeable device adapters.

3.1.2.1. Automated Software Recognition. The NVDTS software shall feature automatic device recognition, detecting the specific UUT via the electrical/data connection and instantly loading the correct original equipment manufacturer diagnostic protocol and MIL-SPEC testing parameters without manual input from the maintainer.

3.2. Control Computer and Operating System.

3.2.1. Hardware Specifications (Threshold).

3.2.1.1. Processing Capability. The NVDTS shall utilize an integrated commercial-off-the-shelf (COTS) processor core with a minimum of eight (8) physical cores and a base clock speed of no less than 3.0 Gigahertz (GHz).

3.2.1.2. System Memory. The system shall include a minimum of 32 Gigabytes (GB) double data rate 5 synchronous dynamic random-access memory with error-correcting code (ECC) enabled.

3.2.1.3. Physical Input/Output Interfaces. The system shall provide dedicated physical interfaces for instrument control, including at least two (2) independent Gigabit ethernet ports and four (4) universal serial bus (USB) 3.2 Gen 2 ports.

3.2.2. Operating System and Cybersecurity (Threshold).

3.2.2.1. Operating System Compliance. The control computer shall run an enterprise-grade operating system (e.g., Windows 11 Enterprise Long-Term Servicing Channel or Red Hat Enterprise Linux) that is fully supportable by the Defense Information Systems Agency (DISA) Security Technical Implementation Guides (STIGs).

3.2.2.2. Cryptographic Hardware. The motherboard shall include a physically soldered Trusted Platform Module (TPM) 2.0 chip to support hardware-based encryption and secure boot validation.

3.2.2.3. Wireless Emission Control.

3.2.2.3.1. Wireless Restriction (Threshold). The baseline NVDTS shall not contain any active, unshielded wireless transmitters, receivers, or transceivers. To meet strict emission security (EMSEC) (TEMPEST) and tactical security requirements, all Wi-Fi, Bluetooth, Near-Field Communication (NFC), or other RF wireless hardware shall be physically omitted or permanently deactivated at the hardware level.

3.2.2.3.2. Isolated Wireless Capability (Objective). As an objective, the system shall incorporate a modular, physically isolated wireless transceiver (e.g., an internal expansion card slot) that can be physically populated and activated only upon explicit, authorized command by a local supervisor inside a secure area.

3.2.3. Physical Security and Data Storage (Threshold).

3.2.3.1. Storage Capacity and Speed. The primary storage media (SSD) shall be a minimum of 1 Terabyte (TB) Non-Volatile Memory Express peripheral component interconnect express Gen 4.

3.2.3.2. Removable Drive Bay. The primary storage media shall be mounted in an externally accessible, tool-less removable drive bay to allow rapid physical extraction and secure storage of data when the NVDTS is not in operation.

3.2.4. Operating System and Interface (Objective).

3.2.4.1. Real-Time Processing. The system shall utilize a real-time operating system (RTOS) or dedicated real-time kernel extension if required to guarantee deterministic video frame grabbing and low-latency synchronization with the device under test.

3.3. Light-Tight Chamber. The NVDTS shall utilize a self-contained, light-tight testing chamber to perform the appropriate tests outlined in paragraph 4.0. in ambient lighting conditions ranging from 300 to 1,000 lux (e.g., standard maintenance bay lighting) without requiring a controlled “Dark Room”.

4.0. Measurement Requirements. The NVDTS shall comply with all defined threshold requirements as a mandatory minimum, with objective requirements representing the targeted operational capabilities.

4.1 Baseline Image Intensification and Basic Thermal Calibration (Threshold). The NVDTS shall, at a minimum, perform the following tests for all applicable UUTs.

4.1.1. Image Intensifier System Tests. The NVDTS shall perform a comprehensive evaluation of Image Intensifier (I²) tube and system-level performance.

4.1.1.1. Electrical System and Power Analysis. The NVDTS shall measure the electrical power consumption and performance characteristics of the I² tubes.

Parameter
Measurement Range
System Accuracy
Input Supply Voltage (Vin)
2.0 to 3.8 VDC
±0.01 Volts (V)
Steady-State Current Draw (Low-Light)
5.0 to 25.0 milliamperes (mA)
±0.05 mA
Dynamic Gating Current Draw (High-Light)
15.0 to 50.0 mA
±0.10 mA
Total Power Consumption
10.0 to 190.0 milliwatts (mW)
±0.5 mW
Automatic Brightness Control (ABC) / Bright Source Protection (BSP) Clamping Threshold
Dynamic light activation up to 20 lux
±1.0% temporal correlation
Oscillator Frequency Monitoring
5 kHz to 250 kHz
±0.5% of frequency reading

4.1.1.2. Photometric Performance. The NVDTS shall measure the core photometric performance of the I² tube.

Parameter
Measurement Range
System Accuracy
Luminance Gain (System Gain)
Threshold: 10,000 to 95,000 foot-Lamberts per foot-candles (fL/fc)

Objective: 10,000 to 160,000 fL/fc Threshold: ±5.0% of calculated value

Objective: ±2.5% of calculated value

SNR
5.0 to 45.0
Threshold: ±0.3 SNR units

Objective: ±0.1 SNR units

EBI
0.01 to 4.00 lumens per square centimeter (lm/cm2)
Threshold: ±0.05 lm/cm2

Objective: ±0.01 lm/cm2

4.1.1.3. Optical Image Quality. The NVDTS shall measure the quality and integrity of the image produced by the I² tube.

Parameter
Measurement Range
System Accuracy
Limiting Spatial Resolution
Threshold: 28 to 81 line pairs per millimeter (lp/mm)

Objective: 28 to 96 lp/mm Threshold: ±0.5 lp/mm

Objective: ±0.25 lp/mm

Spot Defect Detection
Threshold: 0.01 mm to 0.50 mm blemish diameter

Objective: 0.005 mm to 0.50 mm blemish diameter Threshold: ±0.013 mm size accuracy

Objective: ±0.005 mm size accuracy

Image Distortion (Geometric and Shear)
Threshold: 0.1% to 15.0% distortion footprint

Objective: 0.05% to 15.0% distortion footprint Threshold: ±0.1% absolute distortion

Objective: ±0.05% absolute distortion

Halo Diameter
Threshold: 0.20 mm to 1.50 mm

Objective: 0.15 mm to 1.50 mm Threshold: ±0.02 mm

Objective: ±0.01 mm

4.1.1.4. System-Level Optical Alignment. For fully assembled NVD systems, the NVDTS shall measure the alignment of all optical components.

Parameter
Measurement Range
System Accuracy
Optical Collimation (Dipvergence / Convergence)
Vertical: ±5 milliradians (mrad)

Horizontal: ±10 mrad ≤ ±0.1 mrad

Field of View (FOV)
5.0° to 50.0°
±0.1°

4.1.2. Basic Thermal System Tests. The NVDTS shall perform basic functional verification of thermal systems.

Parameter
Measurement Range
System Accuracy
System Power Verification
0 to 5 Amperes (A)
±10 mA
Thermal Image Polarity Check
White-Hot / Black-Hot
100% correct identification
Basic Boresight Verification
±50.0 mrad
±0.5 mrad

4.2 Advanced Radiometric Infrared and Digital Multi-Band Fusion Diagnostics (Objective). As an objective, the NVDTS shall perform the following advanced tests for all applicable UUTs.

4.2.1. Advanced Thermal System Tests. The NVDTS shall perform comprehensive diagnostic testing of thermal systems.

Parameter
Measurement Range
System Accuracy
Minimum Resolvable Temperature Difference (MRTD)
0.010°C to 2.000°C
Threshold: ±0.01°C

Objective: ±0.005°C

Noise Equivalent Temperature Difference (NETD)
10 millikelvins (mK) to 250 mK
Threshold: ±2.0 mK

Objective: ±0.5 mK

Non-Uniformity Correction (NUC) Validation
0.01% to 10.00% residual spatial variance
±0.05% absolute spatial variance
Modulation Transfer Function (MTF)
Threshold: 0.05 to 25.0 cycles/mrad

Objective: 0.05 to 40.0 cycles/mrad Threshold: ±2.0% MTF value

Objective: ±1.0% MTF value

Contrast Transfer Function (CTF)
0.05 to 20.0 cycles/mrad
±2.0% of absolute modulation
Pixel Defect Detection and Mapping
Full screen up to 2048 x 2048
100% detection of single pixel defects
Boresight / Angular Alignment (X/Y Axes)
±50.0 mrad
±0.05 mrad
FOV
2.0° to 45.0°
±0.05°
Reticle Centering Error
0 to 10.0% of Total FOV
±0.1% of display bounds

4.2.2. Fused and Digital Systems Tests. The NVDTS shall perform comprehensive diagnostic testing of fused and digital systems.

Parameter
Measurement Range
System Accuracy
End-to-End System Latency
Threshold: 5.0 ms to 45.0 ms

Objective: 1.0 ms to 50.0 ms Threshold: ±0.2 ms

Objective: ±0.05 ms

Rapid Target Acquisition (RTA) Latency
1.0 ms to 150.0 ms
±0.2 ms
Dynamic Frame Rate / Cadence
Threshold: 30 Hertz (Hz) to 90 Hz

Objective: 30 Hz to 120 Hz ±0.1 Hz

Frame Jitter and Temporal Stutter
0 ms to 25.0 ms
±0.1 ms
Multi-Band Boresight Alignment (I2 to Thermal)
Threshold: ±45.0 mrad

Objective: ±60.0 mrad Threshold: ±0.05 mrad

Objective: ±0.01 mrad

Augmented Reality (AR) Overlay Alignment
Threshold: Full FOV up to 45°

Objective: Full FOV up to 100° Threshold: ±0.15 mrad

Objective: ±0.05 mrad

RTA Injection Reticle Alignment
±25.0 mrad
±0.05 mrad
AR Graphic Scale and Aspect Ratio
0.5x to 2.0x
±0.1%

5.0. Software Requirements. The NVDTS shall comply with all defined threshold requirements as a mandatory minimum, with objective requirements representing the targeted operational capabilities.

5.1. System Modularity.

5.1.1. System Modularity (Threshold). Software modularity shall permit the uploading of new device testing profiles and pass/fail criteria via routine software updates.

5.1.2. System Modularity (Objective). The NVDTS software shall feature automatic device recognition, automatically detecting the specific UUT via the electrical/data connection and instantly loading the correct TPS without manual input from the maintainer.

5.2 Automated Test Program Sets. The NVDTS shall accept and execute new TPSs.

Each TPS shall:

· Be directly and verifiably traceable to the authoritative Government-approved technical orders, technical manuals, and/or calibration procedures for each specific UUT. In any case of conflict, the UUT’s approved technical documentation shall take precedence.

· Upon detecting a test failure, automatically guide the operator to the likely root cause by providing clear, actionable maintenance recommendations (e.g., "TEST FAILED: Measured luminance gain is below minimum threshold. ACTION: Replace Image Intensifier Tube Assembly.").

· Provide operator execution mode selection for continuous run, single-step (debug), stop-on-fail, loop on a step, and run an operator-selected test group.

· Utilize equipment and part references consistent with the approved packing list.

· Display test setup diagrams and operator instructions.

· Display a live tracking table mapping current execution progress.

· Cycle through three distinct visual states: Pending (Grey), Executing (Flashing Blue), and Completed (Solid Green for Pass or Solid Red for Fail) for each test step within the running TPS.

· Display the estimated time to completion to the operator for each TPS test group within the running TPS.

· Refresh data visualizations, metrics, and state changes on screen within ≤ 100 ms.

· Ensure all integrated optical components and electronic modules resident within the NVD shall be fully evaluated in conjunction with their designated NVD host assembly.

· Utilize consistent format and terminology from TPS to TPS.

5.2.1. Automated Test Program Sets (Threshold). The NVDTS shall execute automated test program sets for the night vision devices and components listed below. The system shall support the testing of all I² tubes both as fully integrated components within their parent NVDs and as individual, standalone components extracted from their housings.

Model Number
Manufacture(s)
Identifier

(LIN / NSN)

Technical Manuals

Standalone I2 Tubes

MX-10130 (Series)
Elbit Systems of America

L3Harris

NSN: 5855-01-382-3583

MX-10160 (Series)
Elbit Systems of America

NSN: 5855-01-447-0925

MX-11769 (Series)
Elbit Systems of America

NSN: 5855-01-447-0925

I2 Goggles / Monoculars

AN/ANVIS-7
Elbit Systems of America
LIN: A84881

NSN: 5855-01-424-2286,

5855-01-424-2284, 585-01-350-0349, 585-01-459-5024, 5855-01-459-5023

TM 11-5855-300-10

TM 11-5855-300-23&P

TB 11-5855-300-23

AN/AVS-6
Sierra Pacific Innovations Corp.
LIN: A06352

NSN: 5585-01-475-7061

TM 11-5855-263-10

TM 11-5855-263-23&P

TB 11-5855-298-35

TM 11-5855-313-10

TM 11-5855-313-23&P

AN/AVS-9
Elbit Systems of America
NSN: 5855-01-619-6079
AN/PVS-5 (Series)
ITT Inc.

Varo Inc.

Litton Industries

LIN: N04456

NSN: 5855-00-150-1820,

5855-00-150-1820, 5855-01-228-0938

TB 11-5855-298-34

TB 11-585-298-33

AN/PVS-7 (Series)
ITT Inc.

L3Harris Litton Industries

LIN: N05482

NSN 5855-01-228-0939,

5855-01-228-0937, 5855-01-422-5413

TM 11-5855-262-10

TM 11-5855-262-23&P

TB 11-5855-298-35

AN/PVS-14
Elbit Systems of America

L3Harris

LIN: M79678

NSN: 5855-01-432-0524

TM 11-5855-306-10

TM 11-5855-306-23&P

AN/PVS-15
L3Harris

Litton Industries Northrop Grumman Corp.

LIN: A05014

NSN: 5855-01-477-8741

AN/PVS-21
Sensor Technology Systems Inc.

Steiner Defense

NSN: 5855-01-511-0994

AN/PVS-31A
L3Harris
LIN: S60342

NSN: 5855-01-618-8462

TM 9-5855-1916-13&P

AN/PVS-31D
Elbit Systems of America
LIN: FA5503

NSN: 5855-01-685-2918

I2 Weapon Sights

AN/PVS-4
ITT Inc.

Varo Inc.

Litton Industries Optic-Electronic Corp.

LIN: FA5545

NSN: 5855-01-017-7366

TM 11-5855-213-10

TM 11-5855-213-23&P

AN/PVS-10
Varo Inc.

Litton Industries Northrop Grumman Corp.

NSN: 5855-01-410-8979
TM 11-5855-303-12&P

AN/PVS-17

(Series) Litton Industries Northrop Grumman Corp.

L3Harris

LIN: FA5523

NSN: 5855-01-491-0140,

5855-01-491-6967

AN/PVS-26 with PCS-26
Knight’s Armament
LIN: FA55A8

NSN: 5855-01-538-8121

TM 9-5855-1916-13&P

AN/PVS-30
Knight’s Armament
LIN: S60342

NSN: 5585-01-567-9243

TM 9-5855-1916-13&P

AN/TVS-5
Optic-Electronic Corp.

Varo Inc.

Northrop Grumman Corp.

LIN: N04596

NSN: 5855-00-629-5327

AN/UAS-11
Kollsman, Inc.

Elbit Systems of America

LIN: N05050

NSN: 5855-01-083-9051

Thermal and Digital Systems

AN/VAS-5
Leonardo DRS
LIN D61225

NSN: 5855-01-414-5969

5.2.1.1. Test Requirements. Each TPS listed in the threshold table (paragraph 5.2.1) shall, at a minimum, include all applicable threshold tests identified in Section 4.1, "Baseline Image Intensification and Basic Thermal Calibration (Threshold)".

5.2.1.2. Display Requirements. The TPS shall present all test numbers and measurements taken (e.g.: upper limit, measured value, and lower limit) alongside their engineering units (e.g., VDC, mA, Hz) to the operator in a Graphical User Interface (GUI) as clear, quantified numerical data accompanied by visual overlays, when appropriate, such as highlighting a measured spot defect in red if it exceeds the tolerance and highlighting optical blemishes on a representative phosphor screen.

5.2.1.3. Software Accuracy. The automated diagnostic software shall demonstrate greater than or equal to 95% reliability (accuracy) when analyzing the live digital camera feed of the night vision device under test.

5.2.2. Automated Test Program Sets (Objective). The NVDTS shall also execute automated test program sets for the following night vision devices:

Model Number
Manufacture(s)
Identifier

(LIN / NSN)

Technical Manuals

Thermal Weapon Sights / Clip-ons

AN/PAS-13
RTX Corp. (formerly Raytheon Technologies)
LIN: S60356

NSN: 5855-01-383-6860,

5855-01-600-2717, 5855-01-523-7707, 5855-01-524-4308

TM 11-5855-316-10

TM 11-5855-316-23&P

TM 11-5855-317-23&P

TM 11-5855-324-10

AN/PAS-35
Leonardo DRS

Teledyne FLIR Defense Products

LIN: V05010

NSN: 5855-01-656-6330

TM 11-5855-343-10

TM 11-5855-343-23&P

FWS-I (Family of Weapon Sights – Individual)
Leonardo DRS

BAE Systems

LIN: W05111

NSN: 5855-01-677-5935

FWS-I (Family of Weapon Sights – Individual)

Fusion and Digital Systems

AN/PSQ-20

(Family) ITT Inc. (formerly ITT Corporation) L3Harris Teledyne FLIR Defense Products

LIN: N07848

NSN: 5855-01-534-6449,

5855-01-603-0489, 5855-01-603-0486

TM 11-5855-322-10

TM 11-5855-322-23&P

TM 11-5855-335-10

TM 11-5855-335-23&P

TM 11-5855-336-10

TM 11-5855-336-23&P

AN/PSQ-36
L3Harris
NSN: 5855-01-621-2725
AN/PSQ-39
L3Harris
NSN: 5855-01-650-2680
AN/PSQ-40
L3Harris

Elbit Systems of America

LIN: V05010

NSN: 5855-01-649-9837

TM 11-5855-341-10

AN/PSQ-42 (ENVG-B)
L3Harris

Elbit Systems of America

LIN: E05043

NSN: 5855-01-681-0576

TM 11-5855-1099-10

TM 11-5855-347-20&P

AN/PSQ-43
L3Harris

Elbit Systems of America

NSN: 5855-01-681-8536

AN/PSQ-44
L3Harris

Elbit Systems of America

LIN: N05013

NSN: 5855-01-693-5366

TM 11-5855-348-10

TM 11-5855-348-20&P

IVAS (Integrated Visual Augmentation System)
Microsoft

Collins Aerospace LIN: To Be Determined

5.2.2.1. Test Requirements. Each TPS listed in the objective table (paragraph 5.2.2) shall incorporate all applicable tests from both Section 4.1 (Baseline Image Intensification and Basic Thermal Calibration (Threshold)) and Section 4.2 (Advanced Radiometric Infrared and Digital Multi-Band Fusion Diagnostics (Objective)).

5.2.2.2. Display Requirements. The TPS shall present all test numbers and measurements taken (e.g.: upper limit, measured value, and lower limit) alongside their engineering units (e.g., VDC, mA, Hz) to the operator in a GUI as clear, quantified numerical data accompanied by visual overlays, when appropriate, such as highlighting a measured spot defect in red if it exceeds the tolerance and highlighting optical blemishes on a representative phosphor screen.

5.2.2.3. Software Accuracy. In addition to the threshold requirements, the automated diagnostic software shall demonstrate greater than or equal to 99% reliability (accuracy).

5.2.3. Calibration TPS (Threshold). The NVDTS shall execute a TPS for self-calibration that interfaces with the Army’s calibration equipment suite, Automated Calibration Equipment (ACE).

5.2.4. Cable Assemblies (Threshold). If any cables are required to execute any of the TPSs, they shall be strictly passive and utilize common, modular architecture.

5.3 Graphical User Interface (Threshold). The NVDTS shall provide an integrated, high-resolution digital GUI that allows the operator to select, configure, execute, and monitor TPSs while displaying real-time execution status and hardware safety alerts. The GUI shall serve as the primary control interface for the operator.

5.3.1. User Controls.

5.3.1.1. Test Selection Menu. The GUI shall present a structured, menu-driven list of all available TPS configurations extracted dynamically from the system’s repository. This software menu serves as the sole method for test selection, eliminating the need for physical multi-position selector switches. The menu shall allow users to filter TPS configurations by UUT model number, part number, NSN, and LIN.

5.3.1.2. Test Execution Control. The GUI shall provide distinct, on-screen, mutually exclusive user input controls (i.e., soft-keys) for Start, Pause/Halt, and Software Abort actions.

5.3.2. Visual Indicators. A dedicated, persistent banner area at the top of the GUI shall display hardware interlock status and all thermal and electrical safety alerts. Critical failure alerts shall be displayed prominently (e.g., flashing red at 2 Hz) and require manual operator acknowledgement.

5.3.3. External Software and Hardware Interfacing.

5.3.3.1. Runtime API Binding. The GUI layer shall exchange data with the core Test Executive backend using standard Inter-Process Communication (IPC) protocols.

5.3.3.2. Hardware Asset Mapping. The GUI shall provide a diagnostic view reflecting the connectivity status of all active instruments and equipment mapped to the active TPS. If an active TPS requires an instrument or piece of equipment that is offline, a notice shall be displayed to the operator in the banner area at the top of the GUI.

5.3.3.3. Hardware Abort Interlock and Defined Safe-State Routine. The GUI software shall continuously monitor the state of the physical Emergency Abort button (as defined in 6.3.2.2). Upon activation of the hardware abort, or upon detection of a critical safety fault, the system hardware shall execute a hardware-level safe-state routine within ≤ 100 ms, independent of the operating system state.

5.3.3.3.1. Physical Safe-State Actions. The NVDTS hardware shall immediately and deterministically execute the following physical overrides:

5.3.3.3.1.1. De-energize Light Sources. Terminate electrical power to all internal LEDs, lasers, and NIST-traceable light-emitting sources to eliminate all optical emissions.

5.3.3.3.1.2. De-energize Blackbodies. Terminate power to internal collimator blackbody thermoelectric heaters and coolers to prevent thermal runaway.

5.3.3.3.1.3. Isolate UUT Bias Power. Open mechanical or solid-state isolation relays to disconnect all electrical power and bias voltages supplied to the UUT interface connectors, protecting the device under test from overvoltage or damage.

5.3.3.3.2. GUI Abort Alert and Root-Cause Diagnostic. Concurrently, the GUI software shall freeze all active test controls, display a persistent, high-contrast, flashing (e.g., red at 2 Hz) "HARDWARE ABORT ACTIVATED" visual warning, and immediately execute the following diagnostic actions:

5.3.3.3.2.1. Identify Trigger Source. The GUI shall prominently display the specific safety mechanism that initiated the safe-state, dynamically mapping to the Safety_Trigger_Source database field defined in 5.4.1.

5.3.3.3.2.2. Display Fault Metrics. The GUI shall present the real-time sensor value that exceeded the threshold, dynamically mapping to the Safety_Fault_Metric and Safety_Fault_Code database fields defined in 5.4.1.

5.3.3.3.2.3. Provide Actionable Safety Instructions. The GUI shall display clear, step-by-step instructions to ensure operator safety before they attempt troubleshooting (e.g., "Do not open test chamber. Wait for blackbody to cool down below 35°C.").

5.3.3.3.2.4. Log System Event. The software shall automatically write and commit these safety metrics to the local database at the exact millisecond of the trip to populate the Safety & Fault Metadata table defined in 5.4.1, establishing an immutable audit record.

5.3.4. Non-Functional and Performance Constraints. If communication between the GUI and TPS runtime engine fails for > 500 milliseconds, the GUI shall immediately grey out all control components, display a “COMMUNICATION LOSS” modal alert, and trigger a hardware-level safe-state routine (see paragraph 5.3.3.3. Hardware Abort Interlock and Defined Safe-State Routine).

5.3.5. Calibration TPS Access. The GUI shall allow authorized operators to access and execute the calibration TPS via role-based permissions.

5.3.6. Software Human Factors Engineering.

5.3.6.1. Display Brightness Control. The GUI shall feature an easily accessible, persistent software slider or hotkey configuration to adjust display brightness continuously from 1% to 100% of maximum luminance.

5.3.6.2. Tactical Darkroom Mode. The GUI software shall feature a one-touch "Darkroom Mode" toggle that changes the color palette to high-contrast red-on-black or green-on-black. This is to prevent emissions that would compromise the operator's night vision adaptation or damage sensitive I² tubes undergoing test in the immediate area.

5.3.6.3. Adjustable Text and Scalability. The GUI shall allow the operator to adjust the display text size (minimum of three sizing levels: Small, Medium, Large) without clipping or obscuring active data fields, ensuring readability from a distance of up to 1 meter (3.3 feet).

5.4 Test Data Management and Reporting (Threshold). The NVDTS software shall incorporate a secure, local database management system that automatically logs, structures, and stores comprehensive diagnostic data for every test session. The database system shall be fully queryable via standard methods and support the data export requirements defined in section 5.4.2.

5.4.1. Mandatory Logged Data Fields. The NVDTS software shall automatically capture and commit the following mandatory data fields to the local relational database at the conclusion of every test execution, preventing manual deletion or modification by standard operators:

Category
Field Name
Technical Description
System and TPS Metadata
Test_Station_ID
Unique hardware identifier/serial number of the NVDTS unit.
Software_Version
Active software and firmware build versions used during the test.
TPS_Identifier
Alphanumeric identifier of the specific Test Program Set executed (e.g., TPS-ENVG-B-001).
TPS_Version
The active configuration-controlled version release of the TPS (e.g., v2.4.1).
TPS_Checksum
A cryptographic hash (e.g., SHA-256) of the compiled TPS file to verify that the executed software has not been altered or corrupted.
Timestamp_UTC
Coordinated Universal Time (ISO 8601 format: YYYY-MM-DDTHH:MM:SSZ) of the test completion.
Safety and Fault Metadata
Safety_Trigger_Source
Identifies the specific physical interlock or software watchdog that initiated the safe-state (e.g., E-Stop_Button, Chamber_Over_Temp, UUT_Over_Voltage, Software_Watchdog_Timeout).
Safety_Fault_Code
Standardized hexadecimal or alphanumeric error code representing the active system fault state (e.g., ERR_THERM_094 or ERR_VOLT_102).
Safety_Fault_Metric
The exact numerical value recorded at the millisecond of the trip, including scientific units (e.g., 65.4_deg_C or 4.15_VDC).
Operator Metadata
Operator_ID
Cryptographically validated username or CAC identifier of the active maintainer.
UUT Metadata
UUT_Part_Number
Part number, NSN, or LIN of the UUT.
UUT_Serial_Number
Unique manufacturer serial number of the UUT.
DUT_Operating_State
Operational power state/mode of the UUT during test (e.g., Standby, Active, Auto-Gated, High-Light).
Environmental Context
Ambient_Temperature_C
Ambient temperature (°C) recorded by internal chassis sensors during test execution (mandatory for EBI/NETD normalization).
Ambient_Humidity_Pct
Relative humidity percentage (%RH) inside the test chamber during test execution.
Electro-Optical Stimulus
Optical_Source_Luminance
Calibrated input light level delivered to the optical channel (Foot-Candles, Lux, or Foot-Lamberts).
Thermal_Delta_T_C
Differential temperature setpoint (ΔT in °C) of the active collimator blackbody source for thermal testing.
Optical_Target_Spatial_Freq
Spatial frequency (lp/mm or cycles/mrad) of the active optical/thermal target pattern utilized.
Scalar Test Results
Step_Identifier
Specific paragraph number and alphanumeric ID of the individual test step (e.g., Step_4.1.12.1).
Measured_Value
Primary numerical scalar value measured during the test step.
Measurement_Unit
Standard scientific unit of measure associated with the measured value (e.g., lp/mm, mA, °C, fl/fc).
Lower_Limit
Minimum acceptable threshold value defined by the active TPS limit set.
Upper_Limit
Maximum acceptable threshold value defined by the active TPS limit set.
Specialized & Multi-Dimensional Results
Boresight_Azimuth_mrad
Measured horizontal alignment error between optical channels in milliradians (Paragraph 4.3.2).
Boresight_Elevation_mrad
Measured vertical alignment error between optical channels in milliradians (Paragraph 4.3.2).
Measured_Latency_ms
End-to-end digital display and injection latency in milliseconds (Paragraphs 4.3.1 and 4.3.4).
Defective_Pixel_Count
Total quantity of dead, stuck, or out-of-spec pixels detected during thermal detector mapping (Paragraph 4.2.6).
Pixel_Defect_Map_Payload
Formatted array or delimited string of (X,Y) coordinate pairs identifying defective detector elements (Paragraph 4.2.6).
Media References
Media_File_Path
Relative local file system path pointing to the saved raw image or video file associated with the test step.
Media_File_SHA256
Cryptographic SHA-256 hash of the saved image/video file to guarantee chain of custody and verify the file has not been altered.
Session Summary
Step_Result
Binary pass/fail indicator for each individual test step.
Session_Outcome
Overall pass/fail status of the entire test session (Pass if and only if all individual steps Pass).

5.4.2. Diagnostic Export Capabilities.

5.4.2.1. Local Export Functionality. The software shall provide a secure, operator-initiated mechanism to export filtered subsets or full historical batches of the database.

5.4.2.2. Standardized File Formats. Exported files shall be formatted in standard, non-proprietary schemas, including Comma-Separated Values (CSV) for manual analysis and JavaScript Object Notation (JSON) to facilitate seamless programmatic ingestion into Army enterprise logistics systems (e.g., GCSS-A).

5.4.2.3. Data Integrity and Verification. The system shall append a cryptographic hash (e.g., SHA-256) to all exported test data files to ensure data integrity and prevent tampering or unauthorized modification post-export.

5.4.3. Raw Imagery and Video Media Storage.

5.4.3.1. File System Storage Architecture. The NVDTS software shall store captured raw optical images and video recordings outside the core relational database structure in a dedicated, secure local file system directory. The database shall reference media files exclusively via relative file system paths (Media_File_Path) linked to corresponding test step records.

5.4.3.2. Static Image Format. Captured static test frames (e.g., resolution targets, distortion grids, halo patterns, and thermal pixel maps) shall be saved in a non-proprietary, lossless image format (minimum 16-bit uncompressed tagged image file format or lossless portable network graphics) to preserve radiometric and radiometric pixel fidelity. Lossy compression formats (e.g., joint photographic experts group) are strictly prohibited for diagnostic imagery.

5.4.3.3. Video Capture Format. Captured video streams (e.g., latency measurements, rapid target acquisition tracking, and dynamic boresight verification) shall be saved in an industry-standard container (e.g., moving picture experts group-4 using H.264/H.265 compression) with embedded Society of Motion Picture and Television Engineers or millisecond-accurate timestamps on every frame.

5.4.3.4. Automated Failure Capture. The software shall automatically capture and archive the relevant raw image or video clip for any test step that evaluates to a "Fail" status, providing an immutable audit record for failure analysis and depot-level repair.

5.4.3.5. Storage Capacity Management. The software shall monitor available solid state drive storage capacity and provide a user-configurable data retention/pruning policy. If remaining storage falls below 10% of total disk capacity, the GUI shall alert the operator and inhibit execution of new test sequences until data is archived or exported.

5.4.3.6. Storage Allocation and Endurance. The system shall allocate a dedicated, partitioned storage volume of no less than 500 GB exclusively for diagnostic database records, raw test imagery, and video clips. This volume shall support the local retention of a minimum of 1,000 complete UUT test sessions (including associated failure-capture imagery and calibration logs) without requiring external data offload or automated file pruning.

5.4.3.7. Storage Capacity Exhaustion and Mission-Priority Fallback. To guarantee field readiness and ensure uninterrupted test throughput during high-tempo operations, the NVDTS software shall prioritize test execution over administrative data logging when storage capacity is exhausted:

5.4.3.7.1. Early Capacity Warning (80%). When storage utilization reaches eighty percent (80%) of the dedicated partition capacity, the GUI shall display a persistent advisory notification informing the operator that disk space is low.

5.4.3.7.2. Automated Lossy Pruning (90%). When storage utilization reaches ninety percent (90%), the software shall automatically initiate a background data pruning routine to reclaim space while remaining fully operational. The system shall:

· First, delete raw video files associated with passed tests, oldest first.

· Second, delete static image files associated with passed tests, oldest first.

· Strictly Preserve Metadata: Under no circumstances shall the system automatically delete the lightweight alphanumeric test metrics database logs (the metadata table in 5.4.1), ensuring the core pass/fail records remain intact.

5.4.3.7.3. Degraded “Metadata-Only” Mode (95%). When storage utilization reaches ninety-five percent (95%), the software shall enter a degraded operating mode. It shall disable all raw image and video recording functions, but shall continue to allow the full execution of all test procedures. The system shall continue to log the alphanumeric test metrics defined in 5.4.1.

5.4.3.7.4. Temporary Override State. If the local database partition is completely full (100%), the software shall allow the operator to execute tests by running in an "Unlogged Diagnostics" mode with a clear visual warning on the GUI.

6.0. General Requirements. When applicable, the NVDTS shall comply with all defined threshold requirements as a mandatory minimum, with objective requirements representing the targeted operational capabilities.

6.1. Equipment Sample Requirements (Threshold). The equipment sample requirements shall be in accordance with the solicitation.

6.1.1 Bid Samples. Bid samples shall be required for technical evaluation before contract award.

6.1.2 First Article. First article testing shall be conducted after contract award.

6.2. Equipment Components (Threshold). All sections of MIL-PRF-28800 paragraph 3.2 shall be applicable with the following tailoring:

6.2.1. Material Restricted for Navy Use. Paragraph 3.2.4.1. “Material restricted for Navy use” is not applicable.

6.2.2. Test Chamber/Shroud. The NVDTS shall utilize a self-contained, light-tight testing chamber/shroud to execute these tests without requiring the unit to construct or utilize a controlled “Dark Room” or external light-blocking facility.

6.2.3 Sensors. The NVDTS internal sensors (photometric cameras and blackbody sources) shall be calibratable to NIST-traceable standards and managed via TB 43-180.

6.3. Design and Construction. All sections of MIL-PRF-28800 paragraph 3.3 “Design and Construction” shall be applicable with the following tailoring:

6.3.1. System Readiness and Self-Diagnostics.

6.3.1.1. System Setup Time (Threshold). The NVDTS shall support a rapid deployment sequence, with full System Setup completed in under 15 minutes. This time is measured from the system being fully packed in its transit case to achieving a "ready-to-test" state, including all physical uncasing, deployment, power-on, and operating system boot-up.

6.3.1.2. Power-On Built-In-Test (BIT) (Threshold). Upon startup, the system shall automatically execute a Power-On Built-In Test (PBIT) to verify basic system operability, internal communications, and the health of all critical hardware components (collimator, camera, power supplies). The PBIT shall complete in under 2 minutes and present a clear "System Ready" or "BIT Fault" status to the operator. (Note: PBIT does not replace formal TB 43-180 calibration validation).

6.3.1.3. UUT Reconfiguration Time (Threshold). Once the system is active, the time required for a trained operator to physically and electronically reconfigure the test set to switch between different UUT types (e.g., from testing a PVS-14 monocular to testing an ENVG-B fused goggle) shall be completed in under 3 minutes.

6.3.1.4. Continuous BIT (Objective). In addition to the threshold requirements, the NVDTS shall provide a continuous, background-running…

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