The EXFO FTB-5240S-P Optical Spectrum Analyzer module delivers high-precision spectral analysis across the C- and L-bands for DWDM, CWDM, and advanced optical network deployments. This plug-in module integrates into FTB-2, FTB-2 Pro, FTB-400, FTB-500, and FTB-5240 platforms, enabling rapid commissioning, maintenance, and fault isolation in modern optical systems. The instrument provides simultaneous measurements of optical power, wavelength, and in-band OSNR with exceptional accuracy and dynamic range.
## Technical Specifications
**Spectral Performance**
• Wavelength Range: 1250 nm to 1650 nm
• Wavelength Uncertainty: ±0.05 nm typical; ±0.01 nm after user calibration (within 10 nm of calibration point)
• Resolution Bandwidth: 0.065 nm (FWHM)
• Wavelength Linearity: ±0.01 nm typical
• Wavelength Repeatability: ±0.003 nm (2σ)
• Optical Rejection Ratio: Up to 40 dBc at 0.2 nm (25 GHz) and 50 dBc at 0.4 nm (50 GHz); enhanced rejection with FTB-5240B option
**Power & Dynamic Range**
• Input Power Range: −70 dBm to +23 dBm per channel
• Maximum Total Safe Power: +29 dBm
• Dynamic Range: 93 dB typical (exceeds 90 dB per scan)
• Absolute Power Uncertainty: ±0.5 dB
• Power Repeatability: ±0.05 dB (2σ)
**OSNR Measurement**
• In-band OSNR analysis via PROS-OSNR method
• Accurate measurement in systems with fluctuating noise floors
• Optimized for 40 Gbit/s and ROADM architectures
## Key Features
• Dedicated measurement modes: DWDM, CWDM, EDFA, signal drift, spectral transmittance, DFB laser analysis
• Internal wavelength reference with optional user calibration
• Dual connector support: EI (UPC) and EA (APC) EXFO universal interfaces
• Operating temperature range: 0 °C to 40 °C
• Compact form factor: 96 mm H × 51 mm W × 260 mm D (1.5 kg)
## Typical Applications
• DWDM system characterization and monitoring
• CWDM channel verification
• EDFA gain and noise figure analysis
• Wavelength drift detection
• Component spectral transmittance measurement
• DFB laser spectral purity assessment
