Courtesy: ISO 17987-2: 2016 transport protocol and network layer services In computer networking, the transport layer is a conceptual division of methods in the layered architecture of protocols in the network stack in the Internet protocol suite and the OSI model. The protocols of this layer provide end-to-end communication services for applications.: §1.1.3 It provides services such as connection-oriented communication, reliability, flow control, and multiplexing. The details of implementation […]
Courtesy: ISO 17987-2:2016 Transport protocol and network layer services ISO 17987-2:2016 specifies a transport protocol and network layer services tailored to meet the requirements of LIN‑based vehicle network systems on local interconnect networks. The protocol specifies an unconfirmed communication. The LIN protocol supports the standardized service primitive interface as specified in ISO 14229‑2. ISO 17987-2:2016 […]
Courtesy: ISO 17987 road vehicles local interconnect network (LIN) BREAK: The BREAK field is used to activate all attached LIN slaves to listen to the following parts of the header. It consists of one start bit and several dominant bits. The length is at least 11-bit times; standard use as of today are 13-bit times, and […]
Courtesy: ISO 17987 road vehicles local interconnect network(LIN) Frame types Unconditional frame. These always carry signals and their identifiers are in the range 0 to 59 (0x00 to 0x3b). All subscribers of the unconditional frame shall receive the frame and make it available to the application (assuming no errors were detected). Event-triggered frame. The purpose of this […]
Courtesy: ISO 17987 road vehicles local interconnect network (LIN) LIN is a broadcast serial network comprising 16 nodes (one master and typically up to 15 slaves). All messages are initiated by the master with at most one slave replying to a given message identifier. The master node can also act as a slave by replying to its own […]
Courtesy: ISO 17987 road vehicles local interconnected network (LIN) LIN (Local Interconnect Network) is a serial network protocol used for communication between components in vehicles. It is a single wire, serial network protocol that supports communications up to 19.2 Kbit/s at a bus length of 40 meters. The need for a cheap serial network arose as the technologies and […]
Courtesy: ISO 17065: Competency requirement for product certification The International Accreditation Forum (IAF) has a listing of all recognized Accreditation Bodies whose accreditations to the ISO Guide 65 standard are deemed equivalent. From the IAF MLA informational page: “IAF is encouraging more of its members to join the MLA as soon as they have passed a rigorous […]
Courtesy: ISO 17065: Competency requirement for product certification body Some certification schemes, or the product certifiers that operate those Schemes, may require that the product supplier operate a Quality Management System registered to ISO 9000, or that the testing be performed by a laboratory accredited to ISO 17025. The decision to set these requirements is most often made by the person or […]
Courtesy: ISO 17065:Competency requirement for product certification body A product might be verified to comply with a specification or stamped with a specification number. This does not, by itself, indicate that the item is fit for any particular use. The person or group of persons who own the certification scheme (i.e., engineers, trade unions, building code writers, […]
Courtesy: ISO 17065: Competency requirement for product certification body Product certification or product qualification is the process of certifying that a certain product has passed performance tests and quality assurance tests, and meets qualification criteria stipulated in contracts, regulations, or specifications (sometimes called “certification schemes” in the product certification industry). Most product certification bodies (or product certifiers) are accredited to or aligned with ISO/IEC 17065 Conformity assessment — […]