Tektronix mdo3comp computer serial triggering and analysis module tektronix mdo3comp p the tektronix mdo3comp is a computer serial triggering and analysis module the module enables triggering on packet level information on rs 232 422 485 uart buses as well as analytical tools such as digital views of the signal bus views packet decoding search tools and packet decode tables with time stamp information p tektronix mdo3comp application module for mdo3000 series