The Exfo FOT-933X FTTx Return/Loss Tester is a field instrument designed to measure optical return loss (ORL) and optical loss in fiber-to-the-premises network deployments. It enables rapid verification of fiber optic link integrity, installation quality assessment, and identification of signal degradation sources. The tester combines ORL and loss measurement capabilities in a single portable unit, supporting efficient troubleshooting and maintenance of FTTx infrastructures.
Technical Specifications
Optical measurements span standard FTTx wavelengths including 1310 nm, 1490 nm, 1550 nm, and 1625 nm. The instrument provides high-precision ORL measurement with detailed resolution for identifying reflection sources. Optical loss is measured in dB across an extended dynamic range suitable for lengthy FTTx links. Event detection distinguishes between optical events such as connectors, splices, and macrobends within the fiber link.
– Key Features
• Dual-function testing: ORL and insertion loss measurement in a single instrument
• Event characterization: Identifies and analyzes optical events throughout the fiber link
• Multi-wavelength operation: 1310 nm, 1490 nm, 1550 nm, 1625 nm
• Onboard memory for test result storage
• Data transfer capability for external analysis and reporting
• Battery-powered operation with AC adapter charging option
• Intuitive field-oriented display and navigation
• Compact, lightweight design for portable deployment
• Operating and storage temperature ranges suitable for field conditions
• Humidity-resistant enclosure
– Typical Applications
• FTTx network deployment verification
• Passive Optical Network (PON) commissioning
• Link quality assessment during installation
• Proactive identification of signal degradation
• Connector and splice performance evaluation
• Fiber integrity troubleshooting
– Compatibility & Integration
The FOT-933X operates across industry-standard FTTx wavelengths and supports conventional ORL assessment methodologies. Test data integrates with external reporting systems through onboard memory and data export functionality.
