The Exfo FTB-7523B is an Optical Time Domain Reflectometer (OTDR) module designed for integration into Exfo’s FTB-200 and FTB-500 modular test platforms. Operating at 1310 nm and 1550 nm, it delivers precise fiber optic network characterization and fault detection across enterprise, laboratory, and telecommunications deployments. The module measures fiber length, attenuation, and splice/connector losses with high accuracy, enabling rapid identification and localization of network impairments in single-mode fiber infrastructure.
## Technical Specifications
**Optical Characteristics**
• Wavelengths: 1310 nm / 1550 nm
• Fiber Type: Single-mode
• Port Type: Connectorized
**OTDR Performance**
• Module Type: Optical Time Domain Reflectometer (OTDR)
**Platform Compatibility**
• Compatible with Exfo FTB-200 and Exfo FTB-500 platforms
## Key Features
• Dual-wavelength operation at 1310 nm and 1550 nm for comprehensive fiber analysis
• Single-mode fiber characterization and measurement
• Event and attenuation detection for splice and connector loss identification
• Connectorized optical interface for field deployment
## Typical Applications
• Fiber optic network installation and commissioning
• Cable fault localization and distance-to-fault measurement
• Splice and connector loss assessment
• Network integrity verification and performance baseline establishment
• Enterprise and carrier-grade fiber infrastructure testing
## Compatibility & Integration
The FTB-7523B integrates into Exfo’s modular FTB platform architecture, operating within the FTB-200 and FTB-500 systems. Module-based deployment allows flexible test configuration and simplified field upgrades without platform replacement.
