NOSC Model DLM-1 Synchronous/Asynchronous Data-Line Monitor/Analyzer.
Raymond L Mitchell · Defense Technical Information Center (DTIC) · 1977
A data-line monitor, under microprogram control, is described and its application in monitoring activities on serial data lines linking a computer with remote terminals is discussed. Synchronous protocols are accommodated by the monitor and additional protocols may be obtained by minimal software changes. (Author)