TELECOMMUNICATIONS HARDWARE, NAMELY, OPTICAL ENTRANCE ENCLOSURES; OPTICAL COUPLERS; OPTICAL FIBER FRAMES, SHELVES, TRAYS, AND CABINETS; CUSTOMIZED OPTICAL JUMPERS AND PIGTAILS; FIBER OPTIC SPLICE CLOSURES; FIBER RECEIVER SERVICE CABLES; FIBER LOOPS; INTEGRATED OPTICAL CIRCUITS; TRANSCEIVERS; OPTICAL SWITCHES; OPTICAL WAVEGUIDES; PRESSURE SENSORS; INTERFEROMETERS; OPTICAL GYROS; OPTICAL DELAY LINES; OPTICAL SIGNAL PROCESSORS; DISTANCE MEASURERS; TEMPERATURE SENSORS; CHEMICAL SENSORS; BIOLOGICA...