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.
