1.. EDUCATIONAL PANEL ON OPTICAL FIBERS AND OPTICAL INSTRUMENTS

Using the panel mod. EFO41/EV and the theoretical-experimental handbooks of its equipment will enable to carry out a modular theoretical-experimental course on optical fibers and on theelectronic circuits and transmission systems using them. It consists of a panel mounted on the vertical support and includes optical instruments and different accessories. In detail, the panel is provided with a silk-screen printed diagram showing the functional blocks, the test and signaling points, all connectors and the necessary sockets for the different circuit topologies and for an easy and immediate understanding of the operation of all its components. Moreover, professional optical instruments are used and also troubleshooting operations can be carried out. TRAINING PROGRAM Introduction to optical fiber systems: • Optical fibers - Constructional structure - Light propagation in optical fibers - Modal dispersion - Chromatic dispersion - Attenuation - Bandwidth

Sources and detectors - Sources: Led and Laser - Optical detectors: PIN and avalanche photodiodes • Connections and headings - Connections - Headings Optical fiber communication systems: • Digital transmission system • Analog transmission system • Video transmission system • Transmission system between PCs • Data Multiplexer transmission system • Bidirectional transmission system with one fiber • Bidirectional transmission system with two fibers • Synchronous data transmission • Asynchronous data transmission • Used components - digital transmitter - analog transmitter - digital receiver - analog receiver - FM modulator - FM demodulator - audio modulator and Audio+Video combiner - Video/Audio separator and Audio demodulator - data multiplexer - data demultiplexer - WDM (Wavelength Division Multiplexer) - data coding / decoding: NRZ, Manchester, bi-phase Mark / Space - V24/RS232C interface • Characteristics of components: - Digital and linear driving - characteristic curves of the optical source - bias current - emitted power adjustment - “Optical power/current” curve of the source - operating point of the LED - characteristics and driving of Laser diode - automatic control of the power emitted by Laser diode - waveform of the transmitted signal - detector responsivity - characteristics and biasing of avalanche photodiode - receiver saturation - modal dispersion - linearity of the connection - frequency response of the connection - dimensioning of the connection - power margin Measurements on optical fibers: • Identification of components • Structure of optical cables • Numerical opening • Attenuation • Connectors Troubleshooting TECHNICAL SPECIFICATION Silk-screen printed panel: • Characteristics: - It contains the silk-screen printed panel - It contains the functional block diagrams - It contains the access and connection points, signalling and test points of system components - The rear side in transparent plastic enables to display all component parts • Components included: - LCD colour Video Monitor 32 Inch - 2 amplified speakers with volume control - 300 meters of multimode connecterized graded-index 62.5/125 optical fiber - Pulse generator - Data generator (0, 1, 0/1, 4x0/4x1) - Sine generator - Input for external microphone - Video bar generator - FM modulator / FM demodulator - Audio modulator / Audio demodulator - Audio/Video combiner - Audio/Video separator - Audio amplifier with loudspeaker - Transmission interface / reception interface - LED optical source - LASER optical source and monitoring photodiode for automatic power control (APC) - Optical receiver with PIN photodiode - Optical receiver with avalanche photodiode - 8-channel data multiplexer - 8-channel data demultiplexer - Wavelength division multiplexer - Wavelength division demultiplexer - Data coders/ decoders: NRZ, Manchester, Biphase Mark Space - V24/RS232C/USB interfaces • Audio/Video inputs • Audio/Video outputs • Test points, display, connection and regulation • 10-fault simulator insertable by means on switches and protected with key-lock covering Power supply: 230 Vac 50 Hz single-phase - 50 VA (Other voltage and frequency under request) Dimensions: 640 x 810 x 300 mm Total weight: 25 kg Kit for Numerical Opening evaluation: • Characteristics: - Laser Source in visible - Support for connectorized fibers Accessories: • Cables as necessary • Microphone Optical cables: • 4 3-m optical cables of graded-index connectorized fiber 62.5/125 • 1 3-m optical cable of step-index connectorized fiber 9/125 • 1 3-m optical cable of connectorized step-index fiber 200/230 • 1 5-m optical fiber with connectorized plastic fiber Portable Optic Power Source: • Characteristics: - Double light source: selectable in the first and second windows (850,1300/1500 nm) - signaling LED - Adaptor for ST Connector included - ON/OFF control - solid external cover of soft plastic - suitable for portable use - perfectly combinable to be used with the portable optical power measuring unit - power supply from internal battery of 9 Vdc Portable Optical Power Measuring Unit: • Characteristics: - triple light measure band: selectable in the 1st, 2nd and 3rd windows (850/1300/1500 nm) - it enables to identify and measure the optical power of an optical fiber and to carry out tests on cables and devices - LCD Control and level measure Display - Absolute and relative measurement: dBm and dB - Adaptor for ST connector included - ON/OFF control - solid external cover of soft plastic - suitable for portable use - perfectly combinable to be used with the portable optical power source - power supply from internal battery of 9 Vdc -Rack frame.

2. OPTICAL FIBER TECHNOLOGY LABORATORY KITS

Designed to perform practical experiments with professional equipment and tools in the field of optical fibers. In detail, it is possible to perform the following experiments: • Connectorization of optical fibers • Mechanical and fusion splice of optical fibers • Measuring optical fiber attenuation and troubleshooting This laboratory consists of three kits: 1• Connectivity Kit mod. EFO43-C/EV is a set of tools for the connectorization of optical fibers. In detail, it is possible to carry out operations on fibers, such as termination of connectors. 2• Splicing Kit mod. EFO43-S/EV is a set of tools for the tooling of optical fibers. In detail, it is possible to carry out operations on fibers, such as fiber splice by fusion or mechanical welding. 3• OTDR Kit mod. EFO43-O/EV is a set of tools enabling to perform measurements of attenuation and to display them on a LCD screen via a PC connection. Technical Specifications of each KIT CONNECTIVITY KIT TRAINING PROGRAM • Operations on optical fibers • Mounting of connectors • Cable preparation • Fiber preparation • Fiber cutting • Measurement of attenuation on terminated fiber (with the optional accessories included in the educational panel on optical fibers and optical instruments. TECHNICAL CHARACTERISTICS: • Case with a set of tools for fiber termination, including: - Precision fiber cutter: suitable for single-mode and multi-mode fibers - Universal fixing support of connectors ensuring a very low insertion loss - Kit of fast-acting glue with set of syringes - Fiber stripper - Scissors - Pack of paper napkins - Isopropyl alcohol - Connector cleaning accessory - Fault localizing system with laser light source 650 mm - 5 optical patch cords, single-mode and multi-mode type, length 1m, ST/SC/LC connectors - 40 ST pre-polished connectors - 2 ST bare fiber adapters • 100 meters of optical cable 62.5 / 125 SPLICING KIT TRAINING PROGRAM • Operations on optical fibers • Cable preparation • Fiber preparation • Fiber cutting • Mechanical splice • Fusion splice • Measurement of attenuation on spliced fiber (with the optional accessories included in the educational panel on optical fibers and optical instruments. TECHNICAL CHARACTERISTICS: • Case with a set of tools for fiber splicing, including: - Precision fiber cutter: suitable for single-mode and multi-mode fibers - Fiber stripper - Scissors - 2 ST bare fiber adapters - 5 mechanical splices - 10 splice protection covers • 1 Microfusion splicer with the following characteristics: - Suitable for multi-mode and single-mode fibers - Semi-automatic with alignment on two axes - Automatic alignment on core - Control of cutting angle of optical fibers - Automatic evaluation of joint loss - Typical attenuation: 0,01/0,02 dB (multi-mode/single-mode) - Mechanical tensile test on splice: 2N - 3.5” TFT color display - Controlled by microprocessor - Programmable by user - USB port - Including multi-language software program - Display for showing and guiding the preparation phases, step by step, assisted by software program - Internal rechargeable batteries - Power supply and battery charger - 2 spare electrodes • 100 meters of optical cable 62.5 / 125 OTDR KIT OTDR Kit is a professional measurement system based on an Optical Time Domain Reflectometer enabling to perform measurements of attenuation and to display them on LCD screen. This kit can be connected to a PC via its own USB port and the software of the equipment, to display the acquired data and charts and to fill in test reports on the measurements previously performed. It is possible to perform measurements on the optical cables just assembled with the Connectivity Kit EFO43-C/EV, on preexisting cables or on those used in the educational panel on Optical Fibers and Optical instruments mod. EFO41/EV. TRAINING PROGRAM • Features: OTDR, Power Source, Power Meter and damaged Fiber search • Methods of loss measurement: - 2 points: absolute, dB/km - Splice loss - Least Squares Approximation (LSA) • Launch box operation • Set up and operation of the measuring instrument • Connection to a PC (not included) TECHNICAL CHARACTERISTICS: • Compatibility with multi-mode optical fibers • Optical source 850/1300 nm • Visible light source: laser, 650 nm, 1mW (max), CW/modulated • 4” TFT color display • Internal storage: 1000 traces (max) • Dynamic range: 27/26 dB • Distance: from 1 to 400 Km • Dead zone: 2 m • Resolution: from 0.25 to 64 m OTDR KIT - • Real-time Refresh Rate: 4s (typ.) • Speaker • USB port • Functions of Auto Test and Visual Fault Locator • Software for analysis of traces • ST, SC and FC adapter kit • Unit in a plastic box containing 100 meters of optical cable 62.5/125 with ST/SC connectors • Sample roll: optical cable 62.5/125 with ST connectors, length 300 meters • Shock-proof rubber boot • Rechargeable battery • Power supply unit with battery charger Technical Clauses: The bidder must present a manufacturers authorization Training manual for the items Software packages needed for conducting experiment using these items The supplier must provide one week training to 10 trainers.