tellabs martis dxx 2048m,MartisDXX™ xDSL Network Terminating Unit (STU-160) - Bimelinterface unit located in a MartisDXX node. . Tellabs, and MartisDXX are registered trademarks of Tellabs or one of its affiliates in the United States and/or.tellabs martis dxx 2048m,tellabs martis dxx 2048m,Bell Enterprise - TELLABS MARTISDXX ProductsTELLABS MARTISDXX Products. You are here: Online Product Catalog / TELLABS /. MARTISDXX. Showing 1-99 of 99 results. Part. HECI. Description.