For information on the TDS2CMA Communications module, refer to the Download Tektronix manuals, datasheets and software for all our current products, and many discontinued products as well. TBSB Series test equipment pdf manual download. Oscilloscopes. If the product proves defective during this warranty period, Tektronix, at its option, either will repair the defective product without charge for Tektronix warrants that the product will be free from defects in materials and workmanship for a peri