1.1 Purpose.
This standard establishes interface and associated verification
requirements for the control of the electromagnetic interference (emission and
susceptibility) characteristics of electronic, electrical, and
electromechanical equipment and subsystems designed or procured for use by
activities and agencies of the Department of Defense. Such equipment and
subsystems may be used independently or as an integral part of other
subsystems or systems. This standard is best suited for items that have the
following features: electronic enclosures that are no larger than an equipment
rack, electrical interconnections that are discrete wiring harnesses between
enclosures, and electrical power input derived from prime power sources. This
standard should not be directly applied to items such as modules located
inside electronic enclosures or entire platforms. The principles in this
standard may be useful as a basis for developing suitable requirements for
those applications. Data item requirements are also included.
1.2
Application.
1.2.1 General applicability.
The applicability of
the emission and susceptibility requirements is dependent upon the types of
equipment or subsystems and their intended installations as specified
herein.
1.2.2 Tailoring of
requirements.
Application-specific environmental criteria
may be derived from operational and engineering analyses on equipment or
subsystems being procured for use in specific systems or platforms. When
analyses reveal that the requirements in this standard are not appropriate
for that procurement, the requirements may be tailored and incorporated into
the request-for-proposal, specification, contract, order, and so forth. The
test procedures contained in this document shall be adapted by the testing
activity for each application. The adapted test procedures shall be
documented in the Electromagnetic Interference Test Procedures (EMITP)(See
6.3).
1.3
Structure.
The standard has two primary
sections, the main body and the appendix. The main body contains the interface
and verification requirements of this standard. The appendix is
non-contractual and provides rationale for the requirements and guidance on
their interpretation and use. The paragraph numbering scheme for the appendix
parallels the numbering for the main body requirements except that an extra
“0” digit is included (for example, 20.0 rather than 2.0). Occasionally, there
are references in the main body to appendix material where an obvious need
exists for the appendix information to be examined.
1.4 Emission and susceptibility
designations.
The emissions and susceptibility
and associated test procedure requirements in this standard are designated in
accordance with an alphanumeric coding system. Each requirement is identified
by a two letter combination followed by a three digit number. The number is
for reference purposes only. The meaning of the individual letters is as
follows:
C = Conducted
R = Radiated
E = Emission
S =
Susceptibility
| a. |
Conducted emissions requirements are
designated by "CE---." |
| b. |
Radiated emissions requirements are
designated by "RE---." |
| c. |
Conducted susceptibility
requirements are designated by "CS---." |
| d.
|
Radiated susceptibility requirements
are designated by "RS---." |
| e.
|
"---" = numerical order of requirement from 101 to
199. |
