The Exfo LTS-3902-03BL-EA is an optical loss test set that combines power meter, light source, and optical return loss (ORL) meter functionality in a single benchtop unit. Designed for field and laboratory deployment, it delivers insertion loss, optical power, and continuity measurements with automated testing procedures for ORL and insertion loss. The instrument stores up to 512 manual readings or 1024 programmed data points and includes label printing capabilities for test documentation.
## Technical Specifications
**Optical Performance**
• Wavelengths: 1310 nm and 1550 nm (laser sources)
• Measurement units: dBm or Watts
• Power meter detector: Germanium (Ge) type
• Integrated ORL meter with automated step-by-step testing procedure
**Data Management**
• Manual data storage: up to 512 readings (power, loss, or ORL)
• Programmed data acquisition: up to 1024 data points
• Label printing utility for insertion loss and optical return loss results
**Interfaces & Connectivity**
• GPIB and RS-232 communication
• Standard EXFO optical interface
• Optional EUI connector adapters (EI-EUI-91, EA-EUI-28)
• FC/PC and FC/APC connector support
## Key Features
• Portable benchtop form factor with optional rack-mount configuration
• Power meter offset nulling for accurate readings
• Source stability expressed as ± half the difference between maximum and minimum measured values
• Integrated functions eliminate multiple instruments
## Typical Applications
• Component testing and characterization
• Fiber assembly qualification
• Fiber optic network loss verification
• Optical return loss measurement and documentation
## Compatibility & Integration
The LTS-3902-03BL-EA operates within the LTS-3900 series ecosystem. LED-based alternatives (850/1300 nm) are available through the 23BL option variant. Standard EXFO optical interfaces ship with the unit; universal interface adapters are sourced separately for specialized connector requirements.
