DOtech Type K73 Low-interference, digital, optical transmission system for bidirectional transmission of digital K-line signals in accordance with ISO 9141 for immunity and emission tests. Documentation Data_DOtech-Type-K73 Opman_DOtech-Type-K73 Option_ESD_DOtech-Type-K73-and-DOtech-Type-LIN26-13.11.2014-1 Option_BCI-Filter_DOtech-Type-K73-and-DOtech-Type-LIN26-13.11.2014