The Exfo FTB-7534B OTDR module delivers optical time-domain reflectometry at 1550 nm and 1625 nm wavelengths for single-mode fiber characterization. This field-interchangeable module performs installation verification, maintenance diagnostics, and rapid fault isolation across distances to 260 km. Four-point loss measurements, splice and connector detection, optical return loss calculation, and event characterization support comprehensive network analysis in long-haul and ultra-long-haul deployments.
## Technical Specifications
• **Wavelengths**: 1550 nm ± 20 nm and 1625 nm ± 10 nm
• **Fiber Type**: Single-mode (9/125 µm)
• **Dynamic Range**: 40/38 dB at 10 µs pulse width (1550 nm/1625 nm); 40.5/39 dB at 20 µs pulse width; up to 45 dB at 1550 nm with 3-minute averaging (SNR=1)
• **Event Dead Zone**: 3 m (both wavelengths)
• **Attenuation Dead Zone**: 15 m (1550 nm), 16 m (1625 nm)
• **Sampling Resolution**: 8 cm minimum
• **Sampling Points**: Up to 128,000
• **Linearity**: ± 0.03 dB/dB
• **Maximum Test Distance**: 260 km
• **Optical Interface**: EXFO Universal Interface (EUI) with UPC/APC compatibility; user-selectable adapters (SC, FC, E-2000)
## Key Features
• Fast trace acquisition beginning in 7 seconds; 90% dynamic range within 30 seconds
• Four-point loss measurements for event loss and reflectance quantification
• Optical return loss (ORL) calculation and characterization of splices, connectors, breaks, and splitters
• EXFO ToolBox OTDR software with Auto and Advanced measurement modes
• Optional Visual Fault Locator (VFL) for field troubleshooting
## Typical Applications
• Network installation and verification
• Maintenance and condition monitoring
• Fault detection and localization
• Long-haul and ultra-long-haul network diagnostics
## Compatibility & Integration
Field-interchangeable with EXFO portable platforms including FTB-400, FTB-200, and FTB-500 systems, plus legacy EXFO mainframes. EUI connector architecture enables rapid field adapter changes for different termination types.
