9 COMPONENTS AND DEVICES FOR CONNECTING DATA PROCESSING AND TELECOMMUNICATION EQUIPMENT - NAMELY, INTERFACES, GLASS-FIBER CONDUCTORS, TRANSMITTERS, RECEIVERS AND INTERMEDIATE AMPLIFIERS FOR GLASS-FIBER CONDUCTORS, OPTOCOUPLERS, CONNECTION CORDS AND PLUG CONNECOTRS FOR GLASS FIBER AND ELECTRICAL CONDUCTORS, POWER-SUPPLY UNITS, MODEMS, ACOUSTIC COUPLERS, MULTIPLEXERS, DEMULTIPLEXERS, CONTROLLER AND REGUALTION UNITS, PROCESS-CONTROL UNITS, LINE DRIVERS AND COMPUTER PROGRAMS FOR USE IN CONNECTING DATA PROCESSORS WITH COMMUNICATION TERMINAL