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8. PHYSICAL SERVICES
8.1 Introduction
8.2 Mandates
8.2.1 Chassis
8.2.2 Backplanes
8.2.3 Circuit Cards
8.2.4 Power Quality
8.2.5 Environmental Standards
8.2.6 TEMPEST
8.2.7 EMI/EMC
8.3 Emerging Technologies
8.3.1 Backplanes
8.3.2 Circuit Cards
Physical Services identify the standards necessary to integrate SIGINT sensors into an airborne environment. Physical services address the areas of size, weight, and power (SWAP) as well as unique airborne environmental conditions. These services include chassis, backplanes, circuit cards, power quality, and Electromagnetic Compatibility (EMC).
The standards specified in this chapter are either platform independent, or they are identified as being applicable to Category I (benign), II (harsh), or III (ground) environments.
Category I is a relatively benign airborne environment, where equipment SWAP are concerns but not major issues. Examples of Category I are Rivet Joint (RJ) and Airborne Reconnaissance Low (ARL).
Category II is a harsh airborne environment, where equipment SWAP are major issues. Examples of Category II are Air Force Special and Unmanned Aerial Vehicles (UAV).
Category III is a non-airborne environment, where equipment SWAP are not necessarily major issues. Examples of Category III are Contingency Airborne Reconnaissance System (CARS) and Consolidated Remote Operations Facility, Airborne (CROFA).
Category I and Category III equipment chassis shall (Category II equipment chassis should) comply with the following:
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Backplanes with primarily RF boards shall use:
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Backplanes with primarily digital boards shall use:
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Circuit Card Assemblies (CCA) shall be either:
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or
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Systems requiring conduction cooling shall comply with the following:
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Category I and II, shall comply with the following:
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It is preferable for Category III to also comply, as some "ground" systems are powered by generators, or located on moving vehicles (air, land, and sea) and may be subject to dirty power.
Category I hardware shall comply with the following:
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For equipment that may tie directly to a transmitter or Communications Security (COMSEC) device or that may impinge on the red-black interface, TEMPEST requirements and applicability must be considered. The following shall apply:
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1 VME64-B equates to a 6U-160 card size.
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Commercial items shall comply with the following:
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To minimize interference, electronic equipment shall comply with the following:
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