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Description of PD CEN/TS 13149-8:2025 - TC 2025This part 8 specifies the physical layer of an onboard data transmission bus between the different equipment for service operations and monitoring of the fleet. This applies to equipment installed on board vehicles that are operating as part of a public transport network, i.e. in operation under public service contracts. This equipment includes operation aid systems, automatic passenger information systems, fare collection systems, etc. The use of IEEE 802.11 Wireless LAN communications is excluded from the scope of this Technical Specification; its use is not recommended for the service-based approach of CEN/TS 13149. Equipment directly related to the safety-related functioning of the vehicle (propulsion management, brake systems, door opening systems, etc.) are excluded from the scope of this Technical Specification and are dealt with in other standardization bodies. Interfaces to such equipment or safety-critical networks can be provided through dedicated gateways. This document covers the following: — The link between equipment inside vehicles consisting of one carriage only, e.g. buses and trolleybuses, as well as a set of carriages, e.g. trams and trains; — The Physical Layer for IP-communication networks onboard PT vehicles; — The cables, connectors and other equipment including pin assignment and environmental requirements. This document specifies wired communication networks onboard PT vehicles which are based on the Ethernet specification ISO/IEC/IEEE 8802-3-10 Base T, 100 Base Tx and 1000 Base T.
About BSIBSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses. |
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