subsystem vs sub-system

Both 'subsystem' and 'sub-system' are correct, but 'subsystem' is more commonly used in English. The hyphenated form 'sub-system' is less common and may be used in specific technical or formal contexts.

Last updated: March 25, 2024 • 3905 views

This is a correct and commonly used term in English.

"subsystem"

The term 'subsystem' refers to a system or part of a system that operates independently within a larger system. It is used in various technical and organizational contexts.

Show examples from the web [+]

They interface with the rolling stock subsystem.
This Annex indicates the assessment of conformity of the energy subsystem.
The aim is to develop innovative, cost-effective and reliable micro-systems and reconfigurable, miniaturised subsystem modules.
Section 5 describes the interoperability constituents adopted for the control-command subsystem.
Requirements are described for the subsystem under normal service conditions.
Electrical protection interfaces with the High Speed Rolling Stock subsystem.
Vehicle and pantograph sway interfaces with the Infrastructure subsystem.
The arrangement of pantographs interfaces with the Energy subsystem.
This interfaces with the Control-Command and Signalling subsystem.
The control-command subsystem requires provision of the guaranteed train braking performance.
This TSI concerns the subsystem telematics applications for passenger services.
It's in the security field subsystem, labelled 'ANA'.
Regarding interoperability, the maintenance subsystem is characterised as follows:
An EC declaration of suitability for use is not required for interoperability constituents of the maintenance subsystem.
structure of subsystem, including constituent assembly and overall adjustments,
Compatibility between the control-command subsystem and other TSI subsystems.
Voltage and frequency and their permissible ranges interface with the rolling stock subsystem.
The control-command and signalling subsystem shall provide the required signals to the traction units.
Specific requirements are not necessary for the energy subsystem of interoperable high-speed lines.
Therefore, point 4.2.2.5 gives a requirement on limitation of power consumption by rolling stock subsystem.

Alternatives:

component
module
element
part
unit

This is a correct term in English, but less commonly used.

"sub-system"

The term 'sub-system' is a hyphenated form of 'subsystem' and may be used in specific technical or formal contexts. It refers to a system or part of a system that operates independently within a larger system.

Show examples from the web [+]

control-command sub-system information (Section 4.2.4)
The first TSI concerning the 'control-command and signalling' sub-system came into force in 2002.
The first high speed TSI of the rolling stock sub-system, adopted as Annex to Decision 2002/735/EC, came into force in 2002.
Commission Decision 2002/735/EC established the first technical specification for interoperability (TSI) concerning the trans-European high speed rolling stock sub-system.
The sub-system characteristics that must be assessed in the different phases of design, development and production are marked by X in Table E.
The sub-system characteristics to be assessed in the different phases of design, development and production are marked by X in Table E.1 for Infrastructure subsystem and Table E.2 for Rolling Stock subsystem.
Commission Decision 2002/735/EC [2] established the first technical specification for interoperability (TSI) concerning the trans-European high speed rolling stock sub-system.
The first TSI concerning the 'rolling stock' sub-system, came into force in 2002.
The first TSI concerning the 'energy' sub-system, came into force in 2002.
The TSI allows for a transition period during which the conformity assessment and certification of interoperability constituents may be carried out as part of the sub-system.
The TSI allows for a transition period during which the conformity assessment and certification of interoperability constituents may be carried out as part of the sub-system.
32008 D 0284: Commission Decision 2008/284/EC of 6 March 2008 concerning a technical specification for interoperability relating to the energy sub-system of the trans-European high-speed rail system (OJ L 104, 14.4.2008, p. 1).
32008 D 0232: Commission Decision 2008/232/EC of 21 February 2008 concerning a technical specification for interoperability relating to the rolling stock sub-system of the trans-European high-speed rail system (OJ L 84, 26.3.2008, p. 132).
concerning a technical specification for interoperability relating to the 'energy' sub-system of the trans-European high-speed rail system
The stabilised temperature of the test apparatus and the vehicle or sub-system must be 20º ± 4 º C.
Commission Decision 2008/232/EC of 21 February 2008 concerning a technical specification for interoperability relating to the rolling stock sub-system of the trans-European high-speed rail system (OJ L 84, 26.3.2008, p. 132).
Malfunctions and the reduction in efficiency of a NOx after-treatment system using a reagent and the reagent dosing sub-system shall be monitored.
The sub-assembly 'non ballasted track' of the 'infrastructure' sub-system is defined as a 'novel solution' for the purposes of this TSI.
concerning a technical specification for interoperability relating to the 'rolling stock' sub-system of the trans-European high-speed rail system
Draft Commission decision concerning a technical specification for interoperability relating to the energy sub-system of the trans-European conventional rail system (D007189/02 - 2010/2818(RPS) - deadline: 13.10.2010)

Alternatives:

component
module
element
part
unit

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subsystem vs sub-system

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