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 MIL-HDBK-232A
a.
Distribution system. The metallic wire paths or fiber optic
transmission paths that provide interconnection between components of
the protected system. The distribution system may be an internal PDS
within the controlled space or an external PDS traversing an
uncontrolled access area.
b.
Subscriber sets and terminal equipment. The complete assembly of
equipment, exclusive of interconnecting signal lines, located on the
end user's or customer's premises. This includes such items as
telephones, teletypewriters, facsimile data sets, input/output devices,
switchboards, patch boards, consoles, or any other device which
processes classified information.
3.1.12 RED equipment area (REA). The space within a limited exclusion area
which is designated for installation of RED information processing equipment
and associated power, signal, control, ground, and distribution facilities.
3.1.13 TEMPEST approved equipment or systems. Equipment or systems which
have been certified within the requirements of the effective edition of
NACSIM 5100, or TEMPEST specifications as determined by the department or
agency concerned.
3.1.14 Uncontrolled access area (UAA). The area external or internal to a
facility over which no personnel access controls can be or are exercised.
3.2 Acronyms and abbreviations. The following acronyms and abbreviations
used in this Military Handbook are defined as follows:
a.
ATDD - automatic telephone disconnect device
b.
CBX - computer controlled branch exchange
c.
DF - distribution frame
d.
EESS - earth electrode subsystem
e.
EIA - Electronic Industries Association
f.
EM - electromagnetic
g.
h.
i.
EMP - electromagnetic pulse
j.
EPABX - electronic private automatic branch exchange
k.
FOC - fiber optic cable
l.
FPSS - fault protection subsystem
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