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|  MIL-D-81347C(AS)
MIL-D-81347C(AS)
3. 3.3
Cablimg and Connections
Cables - The equipment shall provide for the use of cables in
3.3.3.1
accordance with specification WR- 101, Part 1.
Interconnection Cabling - The equipment shall be capable of sat-
3.3.3.2
isfactory operation using external wiring in accordance with the applicable requirements of Specifica-
tion WR-101 Part 1, except as modified herein, and the detailed requirements of EI-515. External
cables and that portion of the connectors attached to the cables shall not be supplied as part of the
equipment.
Twisted Pair Cable - Twisted pair cable shall be in accordance
3.3.3.2.1
with EI-515. In twisted pair transmission neither lead shall be grounded on the receiving end.
Triaxial Cable - All triaxial cable shall be Amphenol 421-033 or
3.3.3.2.2
equivalent in accordance with EI-515. In triaxial signal transmissions the inner shield shall be
grounded on the transmitting end only.
Single Wire Cable - In signal wire transmissions the reference
3.3.3 .2.3
lead supplied by the signal source shall not be grounded on the receiving end.
Number of Wires per Terminal - Attachment of wires and leads
3.3.3 .2.4
shall be in accordance with Requirement 5 of MIL-STD-454 except that the number of wires per ter-
minal shall be limited only to the extent that no wires shall be wrapped on another wire.
Connectors - The equipment shall use external connectors in
3.3.3.3
accordance with the requirements of Installation Instructions EI-515. Triaxial connectors shall be
hermetically sealed triaxial BNC type receptacles conforming to the requirements outlined in para-
graph 3 of MIL-C-3608 except that the part shall have an additional contact between the inner and outer
contact. Protective locking caps in accordance with 3.4.6 of MIL-C-81511 will not be required.
Control Panels - All rack or console mounted control panels
3.3.4
shall conform to the applicable requirements of Specification MIL-C-6781 except that edge-lighting
shall not be required. The configuration of all control panels must be approved by the procuring
activity prior to preproduction testing.
Interchangeability - The equipment shall meet the interchange-
3.3.5
ability requirements of Specification MIL-E-5400.
Interference Control - The equipment shall conform with all of
3.3.6
the requirements of WR-101, Part I for design, construction and workmanship, except as specified
herein. A Control Plan will be prepared in accordance with WR-101, Part I.
Maintainability
3.3.7
Maintainability Program - The contractor shall establish and
3.3.7.1
conduct a maintainability program in accordance with MIL-STD-470 and MIL-STD-471 Method 2. All
maintenance actions shall be capable of being performed by a technician with a comprehensive ability
level as follows:
(1) Civilian Education - High school graduate or equivalent.
(2) Technical Training - Navy, Class A technicians school
appropriate to the maintenance task
(3) Experience - Two (2) years of technical experience in
addition to technical training.
Maintainability Definitions - The following definitions shall apply
3.3.7.2
to the terminology as used in this specification.
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