ISO 21111-4:2020 pdf download – Road vehicles – In-vehicle Ethernet
5 1000BASE-RHC components
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.
6.4.1.1 Purpose
Road vehicles are owned and operated in nearly all land regions of the earth. Significant variation in environmental conditions due to climatic environment, including diurnal and seasonal cycles, can therefore be expected. The durability test for high storage temperature is specified.
6.4.1.2 Test setup
The DUT for this durability test is a PCB with a header connector mounted on it. A programmable oven as defined in 9.5.2 is used to expose the DUT to the defined temperature.
6.4.1.3 Test methods
The header connector dimensions before the test are measured in accordance with EIA/TIA 455-13A. DUT is put into the programmable oven that shall be held at T max . DUT is taken out of the programmable oven after being held for 96 h and held for 24 h at room temperature, and the same header connector dimensions shall be measured in the same manner as the initial measurement. An applicable test condition shall be agreed between supplier and vehicle manufacturer. Unless otherwise provided, designated temperature (T max ) is defined in code K in ISO 16750-4:2010, Clause 4.
6.4.2.1 Purpose
Road vehicles are owned and operated in nearly all land regions of the earth. Significant variation in environmental conditions due to climatic environment, including diurnal and seasonal cycles, can therefore be expected. The durability test for low storage temperature is specified.
6.4.3.1 Purpose
Road vehicles are owned and operated in nearly all land regions of the earth. Significant variation in environmental conditions due to climatic environment, including diurnal and seasonal cycles, can therefore be expected. Operating temperature range of a header connector is specified, and test method is defined.