The LTB 1024 device is a line test and measurement box specifically designed for A²B® technology, an emerging automotive audio bus.
The device can measure the bus voltage and the bus current between A²B® nodes during the bus operation, simulate fault insertion on both A²B® lines and provide a load simulation.
Bus voltage and current can be monitored independently to A²B® line status and activity. The measurement device is capable of sampling both values up to 12bit resolution.
The fault insertion part can provide shorts to a reference supply (e. g. to a DUT supply to simulate a fault) or a short between both A²B® lines to interrupt the bus operation and to test the bus diagnostic feature.
A third function is the load simulation, which can be implemented by connecting an external user selectable resistive load to the LTB 1024.
All simulation modes are performed with non-mechanical switches to have no influence on the A²B® lines in normal operation and to offer a long service life with no loss of performance.