Proximity Warning Unit (PWU) Prototype

November 12, 2019

The Army desires a Proximity Warning Unit (PWU) prototype system that provides real time alerts, both audible and visual, to operators during excavation operations when in close proximity to fiber optic cable / critical infrastructure to prevent unintentional damage to network infrastructure at the National Training Center (NTC) based on the Global Positioning System (GPS) location of the fiber optic cable / critical infrastructure. The prototype system should integrate with both commercial and military equipment platforms used in excavation operations to provide effective alerts in both day and night operations based on proximity to fiber optic cable / critical infrastructure, provide a user interface to configure alert thresholds and update the fiber optic cable location database as new fiber is installed, and provide ability to detect and diagnose faults within the prototype system for maintenance actions. This prototype project will be unclassified.

The NTC utilizes a cellular based Range Communication System (RCS) to facilitate rotational training exercise control and data collection in Force on Force (FoF) and Force on Target (FoT) training exercises. The RCS is composed of cellular based 4G LTE network, Fixed Access Node (FAN) towers and supporting infrastructure. The Fiber Optic Network (FON) infrastructure provides the backbone of the RCS and facilitates transport of data between the FAN sites and the NTC Instrumentation System (NTC-IS). The FON is critical to support the training mission at the NTC and when damaged impacts the ability to conduct rotational training exercises.

• The purpose of the PWU is to provide a series of alerts and warnings tooperators in excavation operations to prevent unintentional damage to theFON and critical infrastructure during excavation operations.

• The types of alerts, using a series of audible and visual warnings, indicate theproximity to the surveyed location of the FON and critical infrastructure. Theseries and types of alerts change as the digging equipment becomes closer inproximity up to and exceeding a critical proximity that would impose risk inproceeding with digging operations. The initial alert is called the “Proximity Alert” and as a vehicle approaches the fiber optic cable / critical infrastructure from a far distance, is the first indication that the vehicle is nearing a fiber installed location. The second alert is called the “Critical Alert” and provides a warning that the vehicle is within a critical proximity. The alert types and distance threshold values are set as default values along with being configurable based on the application.

• A user interface provides the ability to modify the database that incorporates the surveyed GPS location of the FON and critical infrastructure. As new fiber is installed or new critical infrastructure installed, the user interface provides the ability to update the installed database used for proximity detection. In addition the user interface provides a diagnostic capability to determine operational status along with any maintenance actions

January 6, 2020 Update:

Please note that Attachments 2, Fiber Optic Cable Location Data, and Attachment 3, List of Military and Commercial Digging Platforms, (not included), are releasable only after the supplier submits to NSTXL a completed Attachment 8, GFI Tech Data Distribution Agreement, and provides certification in writing per the guidance in Attachment 4, Security Process for Vetting Contractors.

Attachment 1_Technical Supplement 08132019
Attachment 4_Security Process for Vendor Vetting
Attachment 5_Question Form
Attachment 6_Data Rights Assertions Tables
Attachment 7_Data Rights License Terms Definitions
Attachment 8_PWU_GFI_Tech_Data_Distribution_Agreement
Attachment 9_Terms and Conditions and EULA
UNCLASS FOUO Self Vetting Form

RFS Questions due NLT 1:00pm EDT 20 Jan 2020
RFS Responses due NLT 1:00pm EDT 5 February 2020

If you have any questions regarding this Coming Soon notice, please send your questions to

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