T reference pointIn Integrated Services Digital Networks (ISDN), the conceptual point dividing NT2 and NT1 functional groupings in a particular ISDN arrangement.
T&C(1) Tracking and Control. (2) Test and Control.
T-carrierThe generic designator for any of several digitally multiplexed telecommunications carrier systems.
T-couplerA passive optical coupler having three ports (three fibers). Note 1: Two isolated inputs may be combined into one output; or one input, into two isolated…
T-interfaceFor basic rate access in an Integrated Services Digital Network (ISDN) environment, a user-to-network interface reference point that (a) is characterized…
T1 lineA full-duplex digital transmission facility that is composed of transmission media (optical or metallic) and regenerators that carry one DS1 signal.
T9T9 is a text input method for mobile phones and other small devices. It replaces the "multi-tap" input method by guessing the word that you are trying to…
TA(1) Threat Assessment. (2) Target Acquisition. (3) Test Articles.
Tactical Air DoctrineFundamental principles designed to provide guidance for the employment of air power in tactical air operations to attain established objectives.
Tactical Air OperationAn air operation involving the employment of air power in coordination with ground or naval forces.
Tactical Air Operations CenterA subordinate operational component of the Marine Air Command and Control System designed for direction and control of all en route air traffic and air…
Tactical Air SupportAir operations carried out in coordination with surface forces and which directly assist land or maritime operations.
Tactical Area of Responsibility (TAOR)A defined area of land for which responsibility is specifically assigned to the commander of the area as a measure for control of assigned forces and…
Tactical Ballistic Missile (TBM)A land-based missile generally having a range of <3000 miles that can be employed within a continental theater of operations.
tactical command and control (C2) systemsThe equipment, communications, procedures, and personnel essential to a commander for planning, directing, coordinating, and controlling tactical…
tactical communicationsCommunications in which information of any kind, especially orders and decisions, are conveyed from one command, person, or place to another within the…
tactical communications systemA communications system that (a) is used within, or in direct support of, tactical forces, (b) is designed to meet the requirements of changing tactical…
Tactical ConceptA statement, in broad outline, which provides a common basis for future development of tactical doctrine.
Tactical ControlThe detailed and, usually, local direction and control of movements or maneuvers necessary to accomplish missions or tasks assigned.
Tactical Data Information linkA netted link in which one unit acts as a net control station and interrogates each unit by roll call.
tactical data information link (TADIL)A standardized communications link, approved by the Joint Staff, that is suitable for transmission of digital information, and is characterized by…
Tactical Level of WarThe level of war at which battles and engagements are planned and executed to accomplish military objectives assigned to tactical units or task forces.
tactical loadFor the host service tactical forces, the total power requirements for communications, including the requirements for weapons, detection, command and…
Tactical Operations Area (TOA)That area between the fire support coordination line and the rear operations area where maximum flexibility in the use of airspace is needed to assure…
Tactical Operations Center (TOC)A physical grouping of those elements of an Army general and special staff concerned with the current tactical operations and the tactical support thereof.
Tactical Warning (TW)(1) A warning after initiation of a threatening or hostile act based on an evaluation of information from all available sources.
tag image file format (TIFF)A file format used to store an image using the particular data structure of the file.
Tagged interchange (image) file format (TIFF)An industry-standard raster data format. TIFF supports black-and-white, gray-scale, pseudocolor, and true-color images, all of which can be stored in a…
tail circuitA communications line from the end of a major transmission link, such as a microwave link, satellite link, or LAN, to the end-user location.
tailgateTo gain unauthorized physical access by following an authorized person through a controlled door. [2382-pt.8]
tailingThe in vitro addition, to the 3'-hydroxyl ends of a double-stranded DNA molecule, of multiple copies of a single nucleotide by the enzyme terminal…
taintedSaid of data derived from the grubby hands of a user and thus unsafe for a secure program to rely on.