A01 - Performance Specifications.docx

ISPDS-SPS-12142012

Revision: 1

PERFORMANCE SPECIFICATION

FOR

NEXT GENERATION HUB (NGH)

16 July 2018

Project Manager Soldier Warrior Soldier Systems & Integration (PM SWAR SS&I) Attn: SFAE-SDR-SWAR 10125 Kingman Road Ft. Belvoir, VA. 22060

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

REVISION HISTORY

CHANGE RECORD

This sheet is a record of each issue of this document. Reference Table I.

When the revised document is issued, the previous issue is automatically superseded.

TABLE I: Specification Configuration Management Change Record Table

Management Pages Changed Reason for Change

NGH-SPS-05312018

Table of Contents

LIST OF TABLES

LIST OF FIGURES

Figure 1 – NGH Interconnect Block Diagram 1

NGH-SPS-05312018

Revision: 1.0

NGH-SPS-05312018

Revision: 1.0

FOR OFFICIAL USE ONLY

1. SCOPE

This specification defines the requirements for a family of components that provide data and power distribution for body worn devices. The goal of these components is to minimize complexity, reduce parts counts, reduce size, weight, cost, and reliably provide Soldiers and Marines with flexibility and ease for mission operations. This specification is written in conformance with MIL-STD-961E Change 1, Military Standard: Defense and Program-Unique Specifications Format and Content. Performance requirements are listed in Section 3 with the corresponding verification criteria in Section 4. Future devices or integration of capabilities would be addressed as needed to enable needed functionality. This could include embedding or having a PAN interface to a dongle for things like Intra-Soldier Wireless (ISW) or other capabilities. The Indefinite Delivery/Indefinite Quantity (IDIQ) contract could be updated to allow new models and upgrades to the NGH.

Background Nett Warrior (NW) is a Soldier worn system that supports the mission of the dismounted combat Leader. The End User Device (EUD) provides computer processing, data storage, user display, and navigation functions while operating as the Universal Serial Bus (USB) Host. The Next Generation Hub (NGH) facilitates data exchange between the EUD and other peripherals. The NGH also provides power distribution from a common power source. This concept is illustrated in Figure 1 below.

Figure 1 – NGH Interconnect Block Diagram Multiple NGH devices may be “daisy chained” to facilitate connection of additional equipment.

Figure 2 - Basic hubs connected Item Description

NGH

The NGH functions as a USB 2.0 hub for data communication among devices. It also distributes power from two power input ports to provide Person Area Network (PAN) power to connected devices.

APPLICABLE DOCUMENTS

General The documents listed in this Section are specified in sections 3, 4, or 5 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 sections 3, 4, or 5 of this specification, whether or not they are listed.

Government Documents 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.

FEDERAL STANDARDS

DEPARTMENT OF DEFENSE SPECIFICATIONS

A-A-52557A Fuel Oil, Diesel, for Posts Camps and Stations

DEPARTMENT OF DEFENSE STANDARDS

Note: Copies of these documents are available online at https://assist.daps.dla.mil/quicksearch/ or from the Standardization Document Order Desk, 700 Robbins Avenue, Building 4D, Philadelphia, PA 19111-5094.

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

Registry of Toxic Effects of Chemical Substances, National Institute for Occupational Safety and Health.

Copies of these documents are available online at the URL provided. (http://www.redstone.army.mil/amrdec/sepd/tdmd/Documents/ADS37APRF.pdf)

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

ASTM D6413-11

ASTM E927-10 AM1.5G

Standard Test Method for Flame Resistance of Textiles American Society for Testing and Materials Air Mass – Standard Specification for Solar Simulation for Terrestrial Photovoltaic Testing -one nominal Sun specification

Order of Precedence 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.

REQUIREMENTS

First Article When specified in the contract, the NGH shall undergo Production Qualification Test (See Section 6.3) also referred to as First Article Test.

Functionality The NGH shall provide external connectivity and performance for connected devices as defined in the subsections below.

Mobility Size The maximum physical dimensions for the NGH components are defined in Table II. Each component shall be within the height, width and depth maximum limits shown. All physical dimensions shall include any protrusions from panel mount plugs and sockets. If panel mount connectors are not used for the NGH, the “pigtail” connections shall be no greater than 7 inches in length. If pigtails are used, they shall allow 180 degree bends without any damage to insulation or shielding or operations. If pigtails are used, they shall be capable of withstanding 100 lbs. pull force between the cable and the NGH chassis.

TABLE II: NGH Component Maximum Physical Dimension Limits

All components of the NGH shall be contained in pockets, mounting pouches, mounting holsters, or supported by features that are compatible with standard issue body armor protection systems and Modular Lightweight Load carrying Equipment (MOLLE) attachment points.

Weight Each component shall be within the maximum weight limits defined in Table III.

TABLE III: NGH Component Maximum Weight Limits

Comfort The NGH shall not cause pain or discomfort to a user from pressure points, gouging, pinching, chaffing, hot spots, or excessive heat build-up during typical combat operations. The NGH will operate in confined locations and may be covered by tactical fabric from the Improved Outer Tactical Vest (IOTV) or Modular Scalable Vest (MSV).

Weight Distribution The NGH shall be balanced to avoid causing an uneven weight distribution when worn by the user. The user should have the capability to adjust the position of individual modules to tailor the load distribution or add additional equipment without impacting system effectiveness. The NGH shall be mountable to standard issue Army and Marine Corps body armor systems without interfering with existing emergency doffing capabilities of the armor system.

Freedom of Movement Placement of system modules, cables and connectors shall not impede the user’s ability to move, perform mission tasks and individual movement techniques. The NGH shall not interfere with the primary function of other equipment carried or worn by a user. Vehicle ingress and egress shall not be degraded or cause a snag hazard when the NGH is worn.

The NGH shall be designed to ensure that projections are kept to a minimum to prevent injury, entanglement, and interference with the user’s ability to move and perform mission tasks.

Interfaces The NGH should conform to the NW Modular System Architecture. The NGH connections shall all share the same connector keying.

The NGH shall use the connectors specified in NW Interconnect Architecture White Paper (NWPAN-WP-01112013) version 6, Table IV. The connector selection depends on location and application as defined in 3.3.2.1.

Plug with pins style connectors will only be used to input voltage into the components of the NGH. Receptacles with sockets will only be used for output voltage from the NGH. NGH connectors shall be protected from dirt and debris with a replaceable, durable, tethered cover when not in use. The NGH shall self-protect if a power plug is inadvertently connected to a device.

Personal Area Network (PAN) Pinout The PAN shall consist of a common interface architecture with pin assignments following the definition outlined in NWPAN-WP-01112013 version 6 section 4.0.

Each port of the PAN shall consist of no more than 6 conductors for data and power interface to connected systems. The PAN shall provide two direct current (DC) voltages to connected devices, a common ground, and three lines for data or other signaling as shown in TABLE IV.

TABLE IV: Personal Area Network (PAN) Pinout

(*1) For Data interface, this supports USB On-The-Go with grounding the pin to pin 2. For Power interface, this is used as a safety signal as defined in the SMBus Data Specification.

Survivability Visual Signature The NGH shall incorporate Army Operational Camouflage Pattern for all textile components exposed to view. Colors for non-textile items (to include cable overmold) shall be not darker than Coyote 498 and not lighter than Tan 499. Exposed metal connector parts shall be Flat Black.

Reflectance The NGH shall have a dull, lusterless non-reflective finish. Reflectivity of the NGH shall not be impacted if color integrity is degraded under normal wear and maintenance.

Thermal Signature The NGH shall be designed to ensure that thermal energy is distributed to minimize thermal signature when in use. The NGH shall be designed to ensure system does not present a touch hazard IAW MIL-STD-1472.

Decontamination The NGH shall be decontaminable from (Chemical, Biological, Radiological, Nuclear [CBRN]) to a level, which permits negligible risk (less than five-percent incapacitation) to unprotected personnel after an exposure period not to exceed 24 hours. All exterior surfaces of the NGH shall allow for NBC decontamination.

Performance Design Constraints General The NGH system is intended to address Army general requirements for material solutions. The NGH will be utilized with other equipment provided by Service Program of Record (POR). The NGH shall be designed to be interoperable with other equipment based on the following design constraints.

NGH Functional Requirements Physical Connections The NGH shall incorporate six (6) military circular connections defined as follows.

Battery Input Plug with Pins (Qty: 1) Radio/Battery Input Plug with Pins (Qty: 1) Device Receptacles with Sockets (Qty: 3) EUD Host Receptacle with Sockets (Qty: 1) For the purposes of this specification, Battery and Radio/Battery input ports are collectively referred to as Power Input port(s).

Interface Logical Configurations The Battery Input Plug with Pins shall be capable of supporting multiple discrete modes. The Battery Input Plug with Pins shall only support one mode at a time.

Battery Input Mode 1: The first mode is a Power Interface directly to a SMBus compatible smart battery (e.g., Conformal Wearable Battery) or simple DC voltage input.

Battery Input Mode 2: The second mode is a Data Interface to a second NGH functioning as an expansion hub. The Radio/Battery Input Plug with Pins shall be capable of supporting multiple discrete modes. The Radio/Battery Input Plug with Pins shall only support one mode a time.

Radio/Battery Mode 1: The first mode is a Data Interface to a tactical radio.

Radio/Battery Mode 2: The second mode is a Power Interface directly to a SMBus compatible smart battery or simple DC voltage input.

The Device Receptacles with Sockets shall be configured as a Data Interface. The Device Receptacles with Sockets shall function as Downstream Facing Ports (DFP).

The EUD Host Receptacle with Sockets shall be capable of supporting multiple discrete modes. The EUD Host Plug with Pins shall only support one mode at a time.

EUD Mode 1: The first mode is a Data Interface directly to a Host.

EUD Mode 2: The second mode is a Data Interface to a NGH.

USB Data Exchange The NGH shall act as a USB Hub according to the USB 2.0 Specification as well as the USB On-the-Go and Embedded Host supplement. USB mechanical connector specifications are excluded from this requirement.

USB Host Power During operation it will be necessary to provide USB VBUS power to an EUD attached to the upstream port acting as a USB host. The NGH shall support, at a minimum, the Samsung Galaxy Note II, S5, S7, and S9 operating in host mode while drawing enough power to charge their internal batteries.

Secure Digital (SD) Card The NGH shall include a SD Card slot capable of accepting SD/SDHC/SDXC format cards as defined in the SD Specification v3.01. The SD Bus shall operate at UHS-I 104 MB/s (SDR104) or greater. The SD interface shall support, via open standards, a minimum serial data writing speed of Class 10, 10 MB/s or greater. The SD card interface shall enumerate to the host on the USB bus with a unique VID/PID. The SD Card slot shall have a cover that provide protection from environmental effects as defined below.

Input Power The NGH shall accept VBATT input voltages of +10 to +20 VDC on the Power Input ports. The NGH shall accept current up to 5 Amps from either of the power input ports. The NGH shall be capable of connecting to a single battery power source on either input. The NGH shall be capable of being connected to two battery power sources simultaneously. The NGH shall support connection to either an intelligent or not intelligent (Non-SMBus) attached power source.

In the event that two Smart Battery power sources are connected, the NGH Radio/Power Input Plug with Pins shall be the default power source barring any user selection as defined in 3.3.2.7. In the event that a Smart Battery power source and a Simple DC Voltage source is connected, the NGH shall default to using and distributing power from the Simple DC Voltage source barring any user selection as defined in 3.3.2.7. In the event that two Simple DC Voltage sources are connected, the NGH shall default to using power from the Radio/Power Input Plug barring any user selection as defined in 3.3.2.7. The connection of power sources and batteries shall be interchangeable even if defined ports are different without degradation to the port.

When two power sources are attached, the NGH shall switch between sources in no greater than 10 microseconds. Switching between sources shall be automatic when one source is depleted. Switching between sources shall be upon user command regardless of state of charge.

The NGH shall have a maximum turn-on time of 2 seconds, measured as the time from voltage present at an input port to voltage present at all output ports.

The NGH shall not be damaged by connection of a battery that has Pin 1 and Pin 3 tied to VBATT resulting in both pins providing +10 to +20 VDC. The NGH shall protect against short circuits on PAN connections.

The NGH shall be capable of distributing power to connected devices that require high instantaneous inrush currents not to exceed the levels or duration defined in MIL-PRF-32383/4 section 13. Smart Battery Input The NGH shall be capable of automatically recognizing attached compatible Smart Battery devices on its power input ports. The NGH shall be compliant with Smart Battery Specification v1.1 for reading smart battery data. The NGH shall verify that the smart battery Voltage is +10 to +20 VDC before distributing VBATT to the output ports. The NGH will include a SMBus-to-USB Bridge that will allow any smart battery information to be supplied, by request, to the connected USB Host as defined in 3.3.2.7.

Simple DC Voltage Input The NGH shall accept simple (non-SMBus) DC voltage inputs providing +10 to +20 VDC on either of the power input ports. The NGH shall not accept or distribute DC voltage falling outside the range of 10 – 20 VDC. The NGH shall continually monitor simple DC voltage inputs to disable the input within 500 uS if the voltage drops below +10 VDC or exceeds +20 VDC. The NGH shall draw a maximum of 5 A from any single simple DC voltage input.

Output Power The NGH shall distribute VBATT input voltage on Pin 1 to all PAN receptacles in accordance with the architecture and pinouts provided in Table IV. The NGH shall be capable of providing a maximum of 5A VBATT to all connected devices. The NGH shall convert and regulate VBATT to 5VDC with a maximum current of 2 Amps for use on Pin 3 of all Receptacle with Socket interfaces. The NGH shall convert and regulate USB VBUS from VBATT and be capable of providing USB VBUS on the Downstream Data PAN Receptacles and the Upstream Data PAN Receptacle in accordance with the USB Specifications for self-powered hubs (USB 2.0 Specification, Section 7.2.2).

When VBUS input voltage is only present on Pin 3, the Radio/Battery Power Input Plug shall act as a bus-powered hub as defined in the USB 2.0 Specification. When input voltage is only present on Pin 3 of the Radio/Battery Power Input the NGH shall only apply Pin 3 voltage to the EUD Host Receptacle with Sockets. Application or removal of VBATT shall not interrupt the USB data transfer of the NGH.

Software Interface The NGH shall enumerate a downstream control endpoint with a unique VID/PID.

The NGH shall provide, upon request from host controller, access to Power Usage and Smart Battery Data for connected items when available. Data query and response formatting shall be in accordance with SUP-PSM-ICD-06142018.

The NGH shall provide the ability for the host controller to software select between power from the Radio and the Radio/Battery input ports. The NGH will only have one power input port active at any given time.

The NGH shall provide the ability for the host controller to selectively enable and disable VBATT output to each of the PAN ports and to the EUD/Host port. The default mode of operation at startup shall be to distribute VBATT to all PAN ports and the EUD/Host port.

Physical Orientation The NGH shall include a minimal profile mounting system or holster. The holster shall provide operators the ability to mount their equipment to standard body armor systems using available MOLL-E features. Holster shall include holes or pass through of sufficient size to route standard NW “C” Series cables with connectors defined in NWPAN-WP-01112013. The holster shall provide a stable platform for the NGH and connected cables. The holster shall be capable of a locking 360° rotation while mounted to the armor system. The holster shall not interfere with function of the hub or routing of cables.

The NGH shall be physically configured to ensure that orientation will permit unobtrusive use in a holster. The NGH shall be physically configured to support orientations, as determined by an operator, for right and left handed use. The holster shall support ambidextrous cable routing by allowing dual sided mounting of the Hub in the holster.

Information Assurance The NGH shall not have an adverse impact on the ability of connected devices or systems (e.g. Nett Warrior) to obtain system level Secret accreditation.

The host system for the NGH may be certified and accredited to store and process data in accordance with DoDI 8500.2 and AR25-2. As such, the NGH shall comply with the applicable DoDI 8500.2 controls and AR 25-2 requirements appropriate to the vendor’s employed NGH design and the host system designated Mission Assurance Category (MAC) and classification levels. The following DoDI 8500.2 controls are expected to apply at a minimum; COPS-3, DCPA-1, DCPD-1, DCPP-1, DCSR-3, DCSS-2, ECLP-1, ECTC-1, PEDI-1, PEMS-1, and PEVR-1.

The following DoDI 8500.2 controls are likely to apply dependent upon the design used by, and analysis performed by, the vendor: COEB-2, DCMC-1, DCNR-1, EBRP-1, EBRU-1, ECAR-3, ECLO-2, ECPA-1, ECTP-1, ECVP-1, ECWM-1, IAAC-1, IAGA-1, IAIA-2, PECS-2, and VIVM-1.

DoDI 8500.1 control, DCTC-1 TEMPEST, is required to ensure CNSSAM TEMPEST 01-02 NONSTOP and TEMPEST Countermeasure Review (TCR) requirements of the host system, to include interconnected radios, is preserved. Power and signal line filtering may be required to preclude inadvertent release of classified or sensitive data or audio. The required degree of isolations will be determined through contractor performed analysis as approved by the Government. This NGH implementation requirement that might be accomplished with associated system shielding, filter pins, and ferrite beads as needed.

Hostile Software The NGH shall not be susceptible to being used to host software attacks on internal and externally networked systems. The NGH shall not accept in-field software and firmware updates unless its source is authenticated with the use of digital signatures or suitably comparable means. Mobile code shall not be supported by the NGH.

Information Updates The NGH shall update port internal information and systems status at no less than once per second.

Data Logging The NGH shall not permanently store power data in non-volatile memory within the NGH (excluding a removable SD Card). Volatile memory registers within the NGH may be writable during operation to store parameters necessary for the configuration and operation of the device.

System Display Functionality The NGH shall provide all functionality without the need for a user visible display or status indicators beyond a multi-color LED or LEDs. Blink pattern(s) are acceptable. Nothing beyond a two character hexadecimal display shall be present on the ISPDS-C.

System Data Entry The NGH shall provide all functionality defined in this performance specification without the need for user input device(s) such as a keyboard or data entry device. The NGH shall not have an embedded keyboard or data entry device.

Software Loading The NGH is capable of accepting new software loads after initial manufacture. The strength of these individual controls when considered together, vs. individually must result in an acceptable level of risk to ensure that the transit of classified information through the NGH remains secure.

Software Upgrades The NGH shall only accept software upgrades from authorized individuals. Army approved authentications methods shall be considered the baseline; these are identified in Army Regulation (AR) 25-2 and NIST SP 800-53.

Software Upgrade Authentication The NGH shall only accept software upgrades that have been verified as authentic and who’s integrity can be assured to have been preserved. Cryptographic based signatures, hashing, and random generator guidelines described in NIST FIPS 180-1, FIPS 186-3, and FIPS 186-4 shall be consider the baseline for implementation.

Embedded Wireless Constraints The NGH shall not have any standalone embedded wireless capability.

Embedded Code The NGH shall not contain any user accessible applications or functions excluding EUD hosted functions. The NGH shall not contain any software products that are not currently managed or maintained by viable commercial, industrial, or educational concern.

Configuration Controls The NGH shall employ products found on the DoD Approved IA Product List to implement security relevant capability to the degree that is practical. The NGH shall comply with IA rules of systems or networks with which the NGH is authorized to establish a connection.

SUSTAINABILITY

Power Draw The NGH shall draw no more than 1 Watts (T) (< 0.5 Watt (W) Objective) of power each when connected to a single power source with no other devices connected.

Reliability The NGH components shall not negatively impact the Mean Time Between Failure (MTBF) of any connected system.

Maintainability The NGH shall have a Mean Time To Repair (MTTR) of no greater than 0.17 hours (10 minutes).

BIT/BITE and Fault Isolation Built In Test (BIT) information shall be available to the EUD according to SUP-PSM-ICD-06142018. BIT information shall be stored in the SD card if available. Visual indications of BIT execution and results must be compatible with Night Vision Goggles.

The NGH shall perform a BIT during initial system power up. The NGH shall be capable of performing BIT at the command of the user via software installed on a connected host controller device. At a minimum, a status indication of BIT status shall be provided on the NGH with operation approved by the Government at a design review. Status indication shall be available for only 5 seconds upon power application and BIT completion. (Refer to Section 6.6 notes.)

Special Tools and Test Equipment The NGH shall require no new, unique or special tools or support equipment for maintenance.

User Maintenance and Troubleshooting The NGH shall meet supportability requirements with limited troubleshooting by users. Operator Preventive Maintenance Checks (PMC) requirements shall be automated to the maximum extent possible using onboard sensors and diagnostics in order to simplify checks and to reduce workload. Non-automated portions of the PMC shall require no more than 10 minutes to complete.

Expandability The NGH shall provide the capability for any internal firmware/software to be updated via commercial USB interface. The Software update capability will comply with all required DoD Information Assurance requirements of Section 3.3.3. Software update capability shall be capable of being performed in a garrison or maintenance shop environment. Software/firmware updates shall not require the devices to be returned to the manufacturer.

MANPRINT

The NGH shall accommodate Manpower and Personnel Integration (MANPRINT) factors as follows:

Safety The NGH shall comply with the safety requirements of MIL-STD-882. Safety features shall prevent any component failure from creating a personnel hazard. The NGH shall be designed to ensure that operator errors shall not induce a critical or catastrophic hazard.

Electrical Safety The NGH shall meet the electrical safety provisions identified in NFPA 70: National Electric Code. The NGH shall include captive protection for external ports from environmental effects and to prevent entry of foreign material. The NGH shall be designed to ensure that VBATT power is only distributed on open sockets to reduce the risk of electrical shock.

Ionizing Radiation Use of radioactive materials shall be kept to an absolute minimum. If radioactive materials are determined to be required, the least hazardous type and form of radioisotope shall be selected.

Mechanical Safety The NGH shall include the mechanical safety provisions specified in UL 60950. Finished parts shall bear no raw, sharp, or rough edges on any parts. Adequate provisions and markings for handling shall be provided on system components.

Chemical Safety The NGH components shall not create a toxic health hazard for the Warfighter. The NGH shall not use materials that support combustion when exposed to high temperatures or other environmental conditions.

Temperature Safety The NGH shall include heat dissipation provisions to accommodate high temperature operation IAW with Section 3.5.2. The NGH shall not subject the operator to temperature levels that are hazardous to operator touch IAW MIL-STD-1472.

Manpower and Personnel The NGH shall not increase number of personnel required in a unit equipped with the devices.

Human Engineering The NGH shall be operable, maintainable, and supportable by 5th through 95th percentile soldiers wearing every configuration of uniform and equipment, to include Mission Oriented Protective Posture (MOPP) IV and environmental clothing protection levels, under all mission profiles. The NGH shall be designed to ensure that connectors are located to allow for mating/de-mating connections to occur by a user wearing cold weather or Nuclear, Biological, Chemical (NBC) protective gloves.

Controls and Displays Arrangement, size, shape, and marking/labeling of controls shall permit tactile identification and position location in darkness. The user shall be able to perform all functions and adjustments to the NGH while wearing issued protective clothing. Cables connections shall be able to be mated / de-mated in the dark by the operator.

Durability Water-Repellent Fabrics Any textile fabrics used in the NGH shall have a water repellent finish. Selected fabrics or finishes shall not collect or wick water. Selected fabrics and finishes shall not cause a mildew type smell or cause user discomfort.

Flammability The NGH shall be designed to ensure that textiles do not present a flammability hazard. Non-textile components of the NGH shall not present a flammability hazard.

Colorfastness Any textile fabrics used in the NGH shall maintain its color integrity under normal wear and maintenance.

Dimensional Stability Any textile fabrics used in the NGH shall maintain dimensional stability under normal wear and maintenance.

Connector and Cable Strength The connectors used in the NGH shall withstand a minimum of 10 pounds (+3 / -3 pounds) of tension force before breaking connection. Any pigtail connections shall be capable of bending 180 degrees (+/- 10 degrees) at any point along the cable length without damage to the insulation, stress relief or conductors. The force to break a pigtail cable shall be greater than 100 Lbs when applied between the plug and cable or cable and chassis. The NGH connectors shall be rated for no less than 200 mate/de-mate actions without degradation of shielding or performance to include pulling on the center of the cable to de-mate.

Twist and Pull All NGH terminal components and termination points shall not part from the conductor when subjected to twisting, pulling and tension force.

Metal Components Finish Metal surfaces, except for electrical contacts, shall be treated for corrosion resistance and the prevention of electrolytic action between dissimilar metals.

Marking Requirements The NGH components shall be marked IAW the requirements for markings in MIL-STD-130 and shall have both a user readable label and an US Army digitally readable 2D UID for the information below.

The marking for each component of the NGH shall include the following:

Nomenclature Part number Serial number Contract Number User Agency National Stock Number (NSN) Manufacturer’s Commercial and Government Entity (CAGE) code Date of Manufacture (MM/YYYY) Two-D UID data matrix not smaller than ½ inch square The NGH shall include English marking on all ports. The Upstream Data PAN Receptacle shall be labeled EUD/HOST. The Battery Downstream Data PAN Plug shall be labeled BATT. The Radio/Battery Downstream Data PAN Plug shall be labeled RADIO/BATT. The Downstream Data PAN Receptacles shall each be labeled PAN# where # is 1..3. Any colors used shall not adversely impact camouflage with sharp visible contrast. Input voltage ranges shall be provided for identification on the chassis. Alternative markings may be used following Government approval.

Markings shall not be removed or made unreadable by application of chemicals listed under section 2.2.1. Identification shall be located to prevent interference with operation of the system in a non-prominent position such as the back of a system. Any cable with a unique interface shall include labeling to identify the connection device or interface (reference section 3.4.9).

Operating Environment Altitude The NGH shall be fully operable at all altitudes from sea level to 9,754 meters (32,000 feet). Additionally, the NGH shall be transportable at ambient equivalent altitudes from sea level to 15,240 meters (50,000 feet).

The NGH shall neither rupture nor present a safety hazard due to rapid decompression from an equivalent altitude of 2,438 meters (8,000 feet) to an equivalent altitude of 12,192 meters (40,000 feet).

Temperature High Temperature The NGH shall be fully operable at a continuous, ambient temperature of +55°C (131 °F), and shall suffer neither damage nor degradation due to storage at a temperature of +71°C (160 °F).

Low Temperature The NGH shall be fully operable at a continuous temperature of -18°C (0°F).

A winterization kit, if required, is acceptable for operation below -18°C (0 °F), and will not be considered part of the system weight requirement.

Temperature Shock The NGH shall not be damaged by swift changes in ambient temperatures between -32°C (-25°F) and +55°C (+131°F).

Solar Radiation The NGH shall not suffer damage or degradation of performance by extended exposure to sunlight.

Humidity The NGH shall be operable in a hot, humid environment with a diurnal cycle peak of 95% humidity Water Immersion The NGH shall remain functional after salt water immersion to a depth of not less than 1 meter for a period of not less than two hours.

Salt Atmosphere The NGH shall not suffer damage or degradation of performance when operated in and when stored in a salt fog atmosphere.

Shock The NGH shall withstand a landing impact of 6.7 meters per second (22 feet/sec) when delivered by individual parachutist. The NGH shall function under the shock of firing of all weapons assigned to units issued the devices. The NGH shall withstand mechanical shocks experienced during normal bench handling, transportation, maintenance, and field operations.

Vibration The NGH shall not suffer damage or degradation of performance due to the vibrations of being transported in military aircraft, ground vehicles, and during field operations.

Sand and Dust The NGH shall operate and not suffer greater than cosmetic deterioration, damage or degradation of performance due to blowing sand and dust.

Rain and Water The NGH shall not suffer damage or degradation of performance during driving rain.

Fungus The NGH shall not support fungus growth.

EMI/EMC

The NGH performance shall meet requirements of this specification, and the system shall not malfunction when operated with a NW system including radio. The NGH shall be sufficiently shielded to provide protection from a 5 Watt UHF/VHF radio at a distance of one (1) centimeter. The NGH shall be sufficiently shielded to provide protection from 25 Watt UHF/VHF sources at a distance of one (1) meter.

The NGH shall comply with the emission and susceptibility requirements found in MIL-STD-461 under the following sections of TABLE VII: Emissions & Susceptibility Requirements Table.

TABLE VII: Emissions & Susceptibility Requirements Table

Electrostatic Discharge (ESD) The NGH shall not suffer damage or degradation of performance when subjected to an electrostatic discharge IAW MIL-STD-464.

Explosive Atmosphere The NGH shall operate safely in an explosive atmosphere. The NGH shall be able to have devices connected or disconnected in an explosive atmosphere safely.

Blast Overpressure The NGH shall not suffer damage or degradation of performance when exposed to a survivable explosive blast Transit Drop The NGH by itself (unattached, no case) shall be ruggedized and shall remain fully functional post 48 inch drops onto plywood covered concrete and shall experience no deleterious effects.

VERIFICATION

General Information This section establishes the verification requirements to verify the Section 3 requirements. The verification methods shall be those shown in the Verification Cross Reference Matrix, TABLE VIII: Verification Methods Table, and as described in the associated paragraphs of this section.

Classification of Verification Classifications of Verifications are as follows:

· Production Qualification Test (PQT)

· Quality Surveillance Test

· Government Test (Developmental and Operational)

The SOW guidance shall cover whether the PQT is a first article sample, a first production item, or the number of test items. These documents shall also include specific instructions regarding arrangements for examinations, approval of first article test results, and disposition of first articles.

Methods of Verification Verification methods are provided in the table below.

TABLE VIII: Verification Methods Table

Basis for Verification The failure of any assembly, device, component, or test specimen to meet any of the verification criteria shall be cause for rejection. The Government may issue a waiver to accept products “as is” or terminate verification activities upon any failure to meet any of the requirements. The NGH is expected to meet all verifications as noted in TABLE IX.

TABLE IX: Performance Requirements - Verification Cross-Reference

4.2.1.1 Size

E

X

4.2.1.2 Weight

T

X

4.2.1.3 Comfort

4.2.1.4 Weight Distribution

4.2.1.5 Freedom of Movement

4.2.2 Interfaces

E

4.2.2.1 PAN Pinout

X

4.2.3.1 Visual Signature

E

4.2.3.2 Reflectance

E

X

4.2.3.3 Thermal Signature

E

X

4.2.3.4 Decontamination

T

X

4.3.2.1 Physical Connections

E

D

4.3.2.2 USB Data Exchange

T

X

4.3.2.3 USB Host Power

T

X

4.3.2.4 Secure Digital (SD) Card

X

4.3.2.5 Input Power

T

X

4.3.2.5.1 Smart Battery Input

T

X

4.3.2.5.2 Simple DC Voltage Input

T

X

4.3.2.6 Output Power

A

T

X

4.3.2.7 Software Interface

X

4.3.2.8 Physical Orientation

4.3.3 Information Assurance

A

T

4.3.3.1 Hostile Software

A

X

4.3.3.2 Information Updates

T

X

4.3.3.3 Data Logging

A

X

4.3.3.4 System Display Functionality

E

X

4.3.3.5 System Data Entry

E

X

X

4.3.3.6.1 Software Upgrades

4.3.3.6.2 Software Upgrade Authentication

A

X

4.3.3.7 Embedded Wireless Constraints

A

X

4.3.3.8 Embedded Code

A

X

4.3.3.9 Configuration Controls

A

4.4.1 Power Draw

T

X

4.4.2 Reliability

T

X

4.4.3 Maintainability

D

X

4.4.3.1 BIT/BITE and Fault Isolation

T

4.4.4 Special Tools and Test Equipment

E

X

4.4.5 User Maintenance and Troubleshooting

A

4.4.6 Expandability

D

X

4.4.7.1 Safety

A

X

4.4.7.1.1 Electrical Safety

A

X

4.4.7.1.2 Ionizing Radiation

A

X

4.4.7.1.3 Mechanical Safety

X

4.4.7.1.4 Chemical Safety

A

X

4.4.7.1.5 Temperature Safety

T

X

4.4.7.2 Manpower and Personnel

A

X

4.4.7.3 Human Engineering

A

D

X

4.4.7.3.1 Controls and Displays

D

X

4.4.8.1 Water-Repellent Fabrics

X

4.4.8.2 Flammability

A

X

4.4.8.3 Colorfastness

A

X

4.4.8.4 Dimensional Stability

A

X

4.4.8.5 Connector and Cable Strength

T

4.4.8.6 Twist and Pull

T

4.4.8.7 Metal Components Finish

A

X

4.4.9 Marking Requirements

E

X

4.5.1 Altitude

T

X

4.5.2.1 High Temperature

T

4.5.2.2 Low Temperature

T

4.5.2.3 Temperature Shock

T

4.5.3 Solar Radiation

T

4.5.4 Humidity

T

4.5.5 Water Immersion

T

X

4.5.6 Salt Atmosphere

T

X

4.5.7 Shock

T

4.5.8 Vibration

T

4.5.9 Sand and Dust

T

X

4.5.10 Rain and Water

T

X

4.5.11 Fungus

T

X

4.5.12 EMI/EMC

T

X

4.5.13 Electrostatic Discharge

T

X

4.5.14 Explosive Atmosphere

T

X

4.5.15 Blast Overpressure

T

X

4.5.16 Transit Drop

T

X

Functionality Verifications Mobility Size Measure the physical dimensions of each component. Verify that the dimensions do not exceed the Section 3.2.1.1 size requirements as defined in TABLE II by more than 5%. Verify that all physical dimensions include any protrusions from connection plug(s). Measure the distance of each pigtail from the chassis junction to the end of the connector. The “pigtail” length should not be greater 7 inches (+/- 5%).

If pigtail cables are present, verify that they are capable of allowing bends as defined in 3.2.1.1. For each pigtail, bend the cable 180 degrees. Inspect the cable and verify that there is no damage to the insulation or shielding. Verify that the NGH continues to operate normally following completion of the test.

If pigtail cables are present, verify they are capable of withstanding pull force requirements defined in 3.2.1.1. Apply a 100 lbs. pull force between the cable and the chassis junction. Verify that the NGH is not damaged as a result of the force applied. Verify that the NGH continues to operate normally following completion of test.

Weight Weigh each of the components and verify that the weight of each item does not exceed the threshold limits provided in TABLE III.

Comfort Verify through demonstration on the Warfighter, that the NGH components fit the 5th and 95th percentile. Ensure that the system as configured by a Warfighter allows for military mounted and dismounted operations. Demonstrate that the NGH, when installed and operated, does not cause pain or discomfort to a user from pressure points, gouging, pinching, chaffing, hot spots, or excessive heat build-up during a 10 kilometer road march, performing individual movement techniques, climbing a 5-foot high wall, and while prone, kneeling, sitting, or standing.

Weight Distribution Verify through demonstration that the NGH components are capable of being mounted to, and removed from, the Small, Medium, Large, XXX Large sizes of the Tactical Vest, IOTV, Interceptor Body Armor (IBA), Plate Carrier, and MSV without special tools, training or permanent modification. Note NW “C” Series cables may be extended by daisy chaining additional “C” Series cables as necessary. Verify the NGH configured components can be moved to different areas of the load-carrying equipment without reducing required component accessibility, the ability to conduct individual movement techniques or other mission-related tasks, and Cheek-to-Stock requirements. The extent of NGH component movement is limited only by:

1) Available space on the load carrying equipment after attachment of warfighter essential items (e.g., M4 magazines, water canteen, grenades) and

2) Required physical connectivity constraints between NGH components (e.g., cable length) and other equipment being connected to the NGH.

3) Vehicle entry, seating, and egress shall be performed in a standard vehicle such as the STRYKER or MRAP to demonstrate and…