ISO 21111-4:2020 pdf free

ISO 21111-4:2020 pdf free.Road vehicles – In-vehicle Ethernet
Figure 2 specifies the components used for the connection between two GEPOF entities that conform to the ISO 21111 series. The 1000BASE-H transceiver component includes the functionality described for the 1000BASE-H transmitter and receiver defined in ISO/IEC/IEEE 8802-3:2017/Amd 9 and for the GEPOF entity in ISO 21111-3. The optical PMD transceiver component includes the functionality described for the optical PMD transmitter and receiver defined in ISO/IEC/IEEE 8802-3:2017/Amd 9 and optical coupling elements defined in this document. These elements are enclosed in broken line in Figure 2.
A GEPOF entity may be integrated in a single component that includes the 1000BASE-H transceiver, the optical PMD transceiver and the cable socket. The resulting component is defined as integrated header connector. In an alternative configuration, the GEPOF entity may be implemented by using two different components. The first one includes the 1000BASE-H transceiver and the second one integrates the optical PMD transceiver and the cable socket. The resulting component is defined as header connector.
Two GEPOF entities are connected through their MDI bi-directionally through a duplex POF cable or a pair of simplex POF cables (see 8.4). The POF cable is terminated with two cable plugs that fulfils the characteristics defined in Clause 9. The connection between two GEPOF entities may include or not one or more in-line connectors.
Type A header connector is defined in Figure 3 and type B header connector is defined in Figure 4. MRP is used to determine a mechanical position when a header connector and a plug connector are mated.Additionally, ORP is used to determine an optical position for the efficient optical coupling performance.The detail H and J of type A and the detail C of type B specify the position of the tip of ferrule of the cable plug in mated condition.
Table 1 specifies the normative references that contain requirements and test methods that the optical components shall also comply in addition to the requirements and test methods defined in each subclause. In case that the result of a test method in the reference over the same parameter differs from the one defined in the subclause, the result in the reference shall prevail. Requirements of optical and electrical characteristics are defined in Clause 9.ISO 21111-4 pdf free.