The EXFO FTB-7323B is a single-mode OTDR module engineered for precise fiber characterization and network troubleshooting. Installed within an FTB series mainframe, it delivers fault location, event detection, and loss measurement across dual wavelengths with sub-meter sampling resolution and minimal dead zones. The module achieves 90% dynamic range in under 30 seconds and initiates trace acquisition in as little as 7 seconds.
## Technical Specifications
• **Fiber Type:** Single Mode (9/125 µm)
• **Wavelengths:** 1310 nm / 1550 nm (±20 nm)
• **Dynamic Range:** 38.5 dB / 37.5 dB (20 µs), 37.5 dB / 35.5 dB (10 µs)
• **Event Dead Zone:** 3 m / 3 m
• **Attenuation Dead Zone:** 10 m / 15 m
• **Sampling Resolution:** 8 cm minimum
• **Trace Points:** Up to 52,000
• **Startup Time:** <30 seconds to 90% maximum dynamic range
• **Acquisition Speed:** Traces initiate in 7 seconds
• **Connector:** UPC Universal Interface with SC adapter
## Key Features
• Four-point event loss and reflectance measurement
• Optical Return Loss (ORL) calculation
• Low-loss event detection via reduced trace noise
• Closely-spaced event resolution with short dead zones
• Complete fiber and signal characterization
• Fault diagnosis and location
## Typical Applications
• Single-mode network deployment and commissioning
• Cable route verification and splice validation
• Fault isolation in installed fiber plant
• Connector and splice loss assessment
• Network maintenance and troubleshooting
## Compatibility & Integration
The FTB-7323B integrates with FTB-400, FTB-100B, FTB-300, and FTB-500 series mainframes. ToolBox Office software enables post-processing and automated reporting of acquired trace data. Mainframe-dependent features include optional color touchscreen displays and integrated power metering.
