ISO 18428-2013 PDF

Full title and description

Space data and information transfer systems — Spacecraft Onboard Interface Services — Subnetwork Device Discovery Service. This International Standard specifies the Subnetwork Device Discovery Service as part of the SOIS (Spacecraft Onboard Interface Services) family, defining the service and its interfaces (service-level behaviour) without prescribing link-level implementation.

Abstract

ISO 18428:2013 defines the services and service interfaces provided by the SOIS Subnetwork Device Discovery Service. The document specifies the service (operations, behaviours and interfaces) only and does not prescribe methods for providing the service over particular onboard data links. It is aligned with the SOIS Green Book and intended to be applied together with that guidance; link-specific protocols are documented separately for particular missions or agencies.

General information

• Status: Published
• Publication date: June 2013 (2013-06)
• Publisher: International Organization for Standardization (ISO)
• ICS / categories: 49.140 (Space data and information transfer systems)
• Edition / version: Edition 1 (2013)
• Number of pages: 23

Information from the ISO catalogue entry for ISO 18428:2013.

Scope

Specifies the Subnetwork Device Discovery Service as part of the Spacecraft Onboard Interface Services (SOIS) suite: defines the service semantics and service interfaces required to discover devices on an onboard subnetwork. The standard is limited to service specification and intentionally omits protocol-level or link-specific implementation details; implementations must map the service to appropriate onboard links or mission-specific protocols. It is intended for use together with the SOIS Green Book and other SOIS documents.

Key topics and requirements

• Definition of the Subnetwork Device Discovery Service and its objectives (discovering and enumerating devices on a subnetwork).
• Formal specification of service interfaces, operations and service-level behaviours (request/response, eventing and state information relevant to discovery).
• Conformance statements: what constitutes compliance at the service-interface level (service semantics rather than link protocols).
• Design intent to be used alongside the SOIS Green Book; separation of service specification from link-level protocol mappings.
• Applicability notes for mission implementers on documenting protocol mappings for individual onboard data links.

Typical use and users

Used by spacecraft systems engineers, onboard software architects, mission integration teams, avionics and communication subsystem designers, and standards committees. Typical tasks include specifying discovery behaviour for onboard networks, defining service interfaces for SOIS-compliant middleware, and documenting how discovery services map to mission-specific or agency-specific link protocols.

Related standards

Part of the SOIS family of standards (other ISO 1842x documents covering synchronization, test services and related SOIS services). It is intended to be applied together with the Spacecraft Onboard Interface Services Green Book and with mission- or agency-specific protocol mappings (e.g., CCSDS or national mission standards). Examples of related SOIS documents in the same series include ISO 18427 and ISO 18438.

Keywords

spacecraft, onboard interface services, SOIS, subnetwork, device discovery, service interface, discovery service, spacecraft avionics.

FAQ

Q: What is this standard?

A: ISO 18428:2013 is an ISO International Standard that defines the Subnetwork Device Discovery Service within the Spacecraft Onboard Interface Services (SOIS) family — it specifies service semantics and interfaces for discovering devices on an onboard subnetwork.

Q: What does it cover?

A: It covers the service-level definition (operations, behaviours and interfaces) for device discovery on spacecraft subnetworks. It does not prescribe link-level protocols or implementation techniques; those mappings are left to mission-specific or agency-specific documentation.

Q: Who typically uses it?

A: Spacecraft systems engineers, onboard software developers, avionics architects, mission integrators and standards bodies that need a common service-level model for discovery on spacecraft subnetworks.

Q: Is it current or superseded?

A: The document was published in June 2013 as Edition 1. Users should check the ISO catalogue or their national standards body for any subsequent revisions, confirmations or withdrawals before relying on it for new projects.

Q: Is it part of a series?

A: Yes — it is part of the SOIS family of standards (ISO 1842x series) and is intended to be used alongside the SOIS Green Book and other SOIS parts describing related services such as synchronization and test services.

Q: What are the key keywords?

A: Spacecraft, SOIS, subnetwork, device discovery, onboard interface services, service interface, discovery service.