Exfo FTB-5240B 1250nm Portable Optical Spectrum Analyzer

The EXFO FTB-5240B is a portable optical spectrum analyzer module designed for DWDM system analysis, delivering lab-quality performance in a field-deployable unit. It integrates with the EXFO FTB-400 Universal Test System and combines one-button operation with an intuitive graphical touchscreen interface. The magnesium alloy enclosure with rubber bumpers withstands field deployment while remaining lightweight. ## Technical Specifications • Wavelength Range: 1250 nm to 1650 nm • Spectral Resolution Depth: Up to 40 dBc at 0.1 nm; up to 50 dBc at 0.2 nm; up to 55 dBc at 0.4 nm • Bandwidth Resolution: 0.033 nm typical, enabling distinction of closely spaced channels • Channel Spacing Analysis: Supports 25 GHz, 50 GHz, and 100 GHz channel spacing; capable of analyzing up to 512 channels in DWDM mode • Wavelength Accuracy: ±0.030 nm with internal reference; ±15 pm (0.015 nm) with external calibration • Dynamic Range: 93 dB • Input Power Range: +18 dBm per channel down to −75 dBm (linearity may degrade above +15 dBm) • Internal Calibration: Features internal reference source for wavelength calibration • External Calibration: Supports external study source calibration for enhanced accuracy ## Key Features • Adjustable wavelength scanning range covering all telco bands and optical supervisory channels • Signal-to-noise ratio measurements via spectral resolution depth • Test modes include Normal, In-Band, and Drift • Supported test types: DFB lasers, EDFA, Fabry-Perot lasers, Spectral Analysis, Spectral Transmittance, and trace comparison ## Typical Applications • Installation, commissioning, and maintenance of optical networks • DWDM system troubleshooting and characterization • Component analysis requiring narrow channel spacing resolution ## Compatibility & Integration Designed as a module for the EXFO FTB-400 Universal Test System.