Additional Utilities
These systems provide support for the ship's service infrastructure: These include:
Umbilical resupply connect ports and associated systems
Principal among these are the resupply umbilical connect clusters located along the spine of the Engineering section. These include provisions for deuterium fuel loading, cryogenic oxygen resupply, gaseous atmospheric support, fresh water, wastewater off-loading, EPS external support, external synthetic gravity support, and external SIF/IDF support. Some of the umbilicals are used for resupply, the remainder allow external support systems (such as those available at a starbase) to carry the load of key systems, allowing the ship's systems to be shut down for servicing.
Jefferies Tubes
This is a system of access tunnels and utilities corridors that carry much of the various utilities conduits and waveguides. The Jeffries Tubes covers the entire volume of the ship, providing access to trunks and circuitry. Also located within these tubes are a variety of maintenance and testing points that allow the performance of various systems to be physically measured at key points.
Corridor access panels
Additional distribution is provided by a network of passageways located within the personnel corridor walls. These corridor paths are accessible from within the corridor by removing the wall panels. Also located within certain access panels are various emergency support packages.
Auxiliary fusion generators
Utilities systems include a number of small auxiliary fusion generators that provide power when the warp and impulse reactors are inactive these fusion generators also provide supplemental power when needed and are a key element of contingency operations.
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