Exfo FTB-5240B 1250nm Portable Optical Spectrum Analyzer

Exfo Optical Spectrum Analyzers. Resolution: ** 0.033 nm typical, Accuracy: ** ±0.030 nm with internal reference, Dynamic Range: ** 93 dB.

Model
Exfo FTB-5240B
Calibration
Available on request
Price
$4,960
Status
In stock
RFQ ref
FTB-5240B
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This unit

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.

Specifications

ParameterValue
Power Range (dBm)'+18 dBm to −75 dBm per channel | Wavelength Range: 1250 nm to 1650 nm

Frequently Asked Questions

What does the Exfo FTB-5240B measure and what is its wavelength range?
The FTB-5240B is a portable optical spectrum analyzer designed to measure and analyze optical signals across the 1250 nm to 1650 nm wavelength range. It delivers 0.033 nm typical resolution and ±0.030 nm wavelength accuracy with internal reference, making it suitable for fiber optic network characterization, DWDM channel monitoring, and optical signal diagnostics. The instrument covers a dynamic range of 93 dB with a power measurement range from +18 dBm to −75 dBm per channel.
What is the condition of this used FTB-5240B, and what has been verified?
This unit is offered in used condition and has been tested for basic functionality prior to listing. We recommend independent verification of performance specifications if operation at rated accuracy is critical for your application. Calibration services are available separately to bring the instrument to current manufacturer specifications.
What does calibration cover for the FTB-5240B, and what does it cost?
Calibration for the FTB-5240B is available separately starting at $450 and typically covers wavelength accuracy, power measurement accuracy, and dynamic range verification to Exfo factory standards. Turnaround time and specific scope of work should be confirmed at the time of service request. Calibration certification documentation is provided upon completion.
What connectivity options and software support does the FTB-5240B offer?
The FTB-5240B supports multiple interface options for remote control and data logging, though specific connector types and protocol availability should be verified with your unit's documentation. Compatible software drivers and control utilities depend on your operating system and network environment. We recommend consulting the instrument's user manual or contacting Exfo technical support to confirm compatibility with your intended integration platform.

Exfo FTB-5240B — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Exfo FTB-5240B. Calibration covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.

Standard Cal
$450
Pass/fail cert + NIST sticker
Cal with Data
$650
Full NIST cert with measured values

Common Exfo FTB-5240B faults: wavelength motor failure, internal light source dimming, detector sensitivity loss. Common repairs include wavelength motor servicing, internal broadband source replacement, and detector recalibration after extended use.

Exfo FTB-5240B price

This Exfo FTB-5240B is listed at $4,960. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Exfo FTB-5240B calibration cost

NIST-traceable calibration for the Exfo FTB-5240B is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers wavelength accuracy at 850, 1310, 1550, and 1625 nm, power level accuracy, resolution bandwidth (RBW) accuracy, and dynamic range verification. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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