Exfo FTB-7434B OTDR Module 1550/1625nM

The Exfo FTB-7434B is an OTDR module designed for the FTB-200, FTB-400, and FTB-500 platforms. It operates at 1550 nm and 1625 nm wavelengths, making it suitable for testing single-mode fibers in telecom networks. This module is ideal for long-haul network characterization, providing accurate measurements of fiber length, attenuation, and splice loss.

Model
Exfo FTB-7434B
Calibration
Available on request
Price
$5,380
Status
In stock
RFQ ref
FTB-7434B
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This unit

The Exfo FTB-7434B OTDR Module is a single-mode fiber characterization instrument operating at 1550 nm and 1625 nm for long-haul telecommunications network testing. This plug-in module integrates with Exfo's FTB-200, FTB-400, and FTB-500 platforms to deliver fault detection, splice loss measurement, and comprehensive fiber link assessment across distances up to 260 km.

Technical Specifications

Wavelengths: 1550 nm ± 20 nm and 1625 nm ± 10 nm

Fiber Type: Single-mode (9/125 µm)

Dynamic Range (10 µs pulse): 40 dB @ 1550 nm / 38 dB @ 1625 nm

Dynamic Range (20 µs pulse): 40.5 dB @ 1550 nm / 39 dB @ 1625 nm

Event Dead Zone: 3 m (both wavelengths)

Attenuation Dead Zone: 15 m @ 1550 nm / 16 m @ 1625 nm

Maximum Range: 260 km

Pulse Widths: 5, 10, 30, 100, 275, 1000, 2500, 10,000, 20,000 ns

Sampling Points: Up to 52,000 acquisition points

Linearity: ± 0.03 dB/dB

Key Features

Configurable pulse widths support both short-range precision and extended-distance measurement

High sampling resolution enables accurate event detection and low-loss characterization

EXFO Universal Interface (EUI) connector design with adapter options for FC, SC, LSA, ST, HMS-10/AG, and E-2000 terminations

Dual-wavelength operation optimizes signal propagation and attenuation analysis

Typical Applications Long-haul network characterization, metro and access systems, FTTH deployments, and FTTx infrastructure assessment.

Compatibility & Integration Compatible with FTB-200, FTB-400, FTB-500, FTB-100B, and FTB-300 platforms. Requires EUI adapter selection during ordering.

Specifications

ParameterValue
Wavelength Range1550 nm ± 20 nm and 1625 nm ± 10 nm

Exfo FTB-7434B — Repair & Calibration Service

Aumictech offers NIST-traceable calibration and repair for the Exfo FTB-7434B. Calibration covers distance accuracy verified against a calibrated fiber length reference, event loss measurement accuracy at splice and connector events, dead zone (event and attenuation) at rated pulse width, dynamic range verification at 1310 nm and 1550 nm, backscatter coefficient calibration, and return loss measurement accuracy. 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-7434B faults: optical port connector damage or contamination, battery failure, display damage from field use, module failure on FTB or MTS platforms, calibration drift. Most field OTDRs fail due to physical damage. On modular platforms (EXFO FTB, Viavi MTS), individual module failures are serviced without replacing the entire mainframe. Optical port cleaning resolves many apparent measurement faults before mechanical repair is needed.

Exfo FTB-7434B price

This Exfo FTB-7434B is listed at $5,380. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.

Exfo FTB-7434B calibration cost

NIST-traceable calibration for the Exfo FTB-7434B 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 distance accuracy verified against a calibrated fiber length reference, event loss measurement accuracy at splice and connector events, dead zone (event and attenuation) at rated pulse width, dynamic range verification at 1310 nm and 1550 nm, backscatter coefficient calibration, and return loss measurement accuracy. Turnaround is 1 to 3 business days after receipt. See full calibration details →

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