ELECTRONIC TESTERS FOR THE COMMUNICATIONS AND COMPUTER INDUSTRY, namely, FOR TESTING THE CHARACTERISTICS OF COMMUNICATION MEDIA AS WELL AS THE SIGNAL TRANSPORTED BY SUCH MEDIA INCLUDING SIGNAL BANDWIDTH, SIGNAL POWER, SIGNAL STRENGTH, SIGNAL ATTENUATION, SIGNAL LOSS, INSEERTION LOSS, RETURN LOSS, ENVIRONMENTAL NOISE, CROSS TALK, DATA RATE, VOLTAGE, IMPEDANCE, FREQUENCY, AMPLITUTE, WATTAGE, POWER SPECTRAL DENSITY, APPLIED LONGITUDINAL VOLTAGE, LONGITUDINAL BALANCE, MEASURED VOLTAGE, MODULATION, AND MULTIPLEXING, LINE LENGTH, L INE SUITABILITY, THERMO/MECHANICAL EFFECTS ON SIGNAL, THROUGHPUT, INSULATION, TAPS, SPLITS, SIGNAL BOOST STRENGTH, BREAKS, SHORTS, AND RESISTANCE OF SIGNAL TRANSPORT MEDIA USED IN THE COMMUNICATIONS AND COMPUTER INDUSTRY; COMPUTER SOFTWARE FOR USE IN CONNECTION WITH TESTERS FOR TESTING COMMUNICATIONS AND COMPUTER SYSTEMS [ ; COMPUTER NETWORK SECURITY SOFTWARE; AUTOMATED CALLING AND ANSWERING MACHINES AND COMPUTER SOFTWARE THEREFOR; COMPUTER TAPE AND CARD PUNCH MACHINES; TAPE AND CARD READERS; MAGNETIC AND OPTICAL DATA READERS AND WRITERS, AND FACSIMILE MACHINES. ]