In telecommunication, the term nuclear hardness has the following meanings: BlackBerry 7100t Telecommunication is the extension of communication over a distance. ...

1. An expression of the extent to which the performance of a system, facility, or device is expected to degrade in a given nuclear environment.
2. The physical attributes of a system or component that will allow survival in an environment that includes nuclear radiation and electromagnetic impulses (EMI).

Note 1: Nuclear hardness may be expressed in terms of either susceptibility or vulnerability. For the Macintosh operating system, which was called System up to version 7. ... In telecommunication, the term facility has the following meanings: 1. ... In general, a things components are its parts; the things that compose it. ... In physics the susceptibility of a material or substance describes its response to an applied field. ...

Note 2: The extent of expected performance degradation (e.g., outage time, data lost, and equipment damage) must be defined or specified. The environment (e.g., radiation levels, overpressure, peak velocities, energy absorbed, and electrical stress) must be defined or specified. In chemistry and biology, degradation is the decomposition of a chemical compound by stages, with well-defined intermediate products. ... In telecommunications, an outage is a telecommunications system service condition in which a user is completely deprived of service by the system. ... 8:17 am, August 6, 1945, Japanese time. ... A datum is a statement accepted at face value (a given). Data is the plural of datum. ...

3. The physical attributes of a system or component that will allow a defined degree of survivability in a given environment created by a nuclear weapon. In engineering, survivability is the quantified ability of a system, subsystem, equipment, process, or procedure to continue to function during and after a natural or man-made disturbance; nuclear electromagnetic pulse from the detonation of a nuclear weapon. ...

Note: Nuclear hardness is determined for specified or actual quantified environmental conditions and physical parameters, such as peak radiation levels, overpressure, velocities, energy absorbed, and electrical stress. It is achieved through design specifications and is verified by test and analysis techniques.

Source: From Federal Standard 1037C Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ...