IEC 61162-402-2005 pdf – Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 402: Multiple talkers and multiple listeners – Ship systems interconnection – Documentation and test requirements.
1 Scope 1.1 General This standard series, IEC 61162-400 and upwards, specifies a communication protocol for use in integrated ship systems. It also specifies an interface description language for use together with the protocol, a set of rules for the use of this language and a set of standard interfaces described in the language. This part of the standard specifies a minimum set of tests to be done, test results to be achieved and documents that shall be available for all implementations of general protocol software and applications that are compliant with the IEC 61162-4 standard. Although this set of standard documents is collectively referred to as IEC 61162-4, the actual part numbers are in the 400-series (see 1.4 of IEC 61162-400). 1.2 Limitations in scope The tests and documentation requirements do not cover electrical, physical or environmental requirements that may apply to the use of software or computers onboard ships. Such requirements may be covered by IEC 60945 or IEC 60092-504. Other standards may also be applicable. This standard does not necessarily cover all requirements from classification societies or other authorities. It is the responsibility of the user of this standard to ensure that all appropriate regulations are addressed. This standard contains tests to check that an application using the IEC 61162-4 protocol adheres to its advertised interface specification. These tests cannot guarantee the correct functionality of that application beyond the possibility of connecting it to the network and with a limited degree of accuracy in the messages transferred. This standard does not cover the system in which the IEC 61162-4 communication standard is used. Additional requirements will normally apply to the total system configuration.
1.3 Limitations in test coverage The test plan only specifies general tests of the protocols and a limited set of other general properties (black box tests). The test procedures will not generally cover tests of operating systems, communication libraries or other software components that are used to implement the standard. Neither does this standard specify any tests related to the way the system is implemented (white or glass box testing). 1.4 Limitations in degree of detail The test procedures are general in nature and do not generally specify detailed test programs and procedures. The procedures specify a minimum set of functional aspects that need to be tested, with, in some cases, a minimum required set of excitations and corresponding required responses. The testers must develop the detailed procedures and test tools themselves. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. IEC 60092-504, Electrical Installations in ships – Special features – Control and instrumentation IEC 60945, Maritime navigation and radiocommunication equipment and systems – General requirements – Methods of testing and required test results IEC 61162-4, (shorthand for all parts in the IEC 61162-400 series), Maritime navigation and radio-communication equipment and systems – Digital interfaces – Part 4xx: Multiple talkers and multiple listeners – Ship systems interconnection IEC 61162-400, Maritime navigation and radiocommunication equipment and systems – Digital interfaces – Part 400: Multiple talkers and multiple listeners – Ship systems interconnection – Introduction and general principles IEC 61162-401, Multiple talkers and multiple listeners – Ship systems interconnection – Application profile
4 Overview and basic principles 4.1 Introduction This part of IEC 61162 covers test and documentation requirements. Proper testing, based on a test plan, and the availability of documentation are factors that are important in ensuring the correctness of a protocol or application software module. This document specifies general requirements to testing and documentation for both protocol and application modules. This document only specifies the tests that have to be made and the required test results. It does not specify the tools or mechanisms that are used to perform the test. This is the responsibility of the tester. Documentation requirements are more specific and define the minimum requirements for documentation that follows protocol or application modules. The user should take care to supplement the minimum requirements with whatever extra documentation that it is felt to be necessary to use the module in question. Of particular importance is software documentation in the case where there is the possibility to modify the module. Annexes summarise the test requirements in a form that can be used as a test log. 4.2 Purpose of this standard This standard shall help to ensure that important aspects of an implementation of IEC 61162- 4 basic software does what it is supposed to do and that it does not contain any hidden defects. This standard can also be used to ensure that an application using the IEC 61162-4 standard actually implements the interface to the network that it advertises through its specification or companion standard document.