BS EN 50697:2019 pdf download.Information technology – M easurement of end-to-end (E2E) links
1 Scope
This document specifies the measurement at frequencies of E2E links of two- and four-pair balanced cabling of 100 MHz of Class D and 250 MHz of Class E including free connectors which terminate two and four pairs in both field and laboratory conditions.
The specifications for E2E links are described in ISO/IEC TR 11801-9902.
This document specifies laboratory and field measurement procedures. The requirements for accuracy to measure cabling parameters identified in ISO/IEC TR 11801-9902 are provided in EN 61935-1 and EN 61935-2.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content constitutes requirements 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.
EN 50173-1, Information technology – Generic cabling systems – Part 1: General requirements
EN 50174-1, Information technology 一- Cabling installation 一Part 1: Installation specification and quality assurance
EN 50174-2, Information technology一Cabling installation- Part 2: Installation planning and practices inside buildings
EN 60512-29-100, Connectors for electronic equipment – Tests and measurements – Part 29- 100: Signal integrity tests up to 500 MHz on M12 style connectors – Tests 29a to 29g (IEC 60512-29-100)
EN 61918，Industrial communication networks – Installation of communication networks in industrial premises (IEC 61918)
4 Conformance
For a measurement of E2E link to conform to this document, the following applies:
a) The requirements of the applicable generic cabling design standards shall be applied;
b) The configuration and structure shall conform to the requirements outlined in Clause 5;
c) The test configuration of E2E link shall meet the requirements in Clause 6 when subjected to the test of E2E link;
d) E2E link testing shall be undertaken according to Clause 7. The laboratory testing is specified in Clause 8 and the field testing is specified in Clause 9;
e) The test head shall meet the requirements of Clause 10.
This document shall apply to measurement methods of E2E link up to 100 MHz of Class D and up to 250 MHz of Class E of balanced cabling that includes the connections located at both ends.
5 Configuration and limits of performance of E2E link
E2E link measurement shall meet the following requirements:
a) the configurations and structure shall conform to the specifications outined in ISO/IEC TR 11801-9902;
b) the test limits shall be in accordance with the outlined maximum limits described in ISO/IEC TR 11801-9902;
c) the use of compatible cabling components shall be in accordance with the requirements of EN 50173-1;
d) if present, screens shall be handled as specified in EN 50174-2;
e) the installation shall be performed in accordance with EN 50174-1, EN 50174-2 and EN 61918;
f) an E2E link shall meet the transmission limits of ISO/IEC TR 11801-9902 and, with its designated Category and with appropriate test head as described in Annex A, the transmission requirements of all lower Categories.
BS EN 50697:2019 pdf download
