The Yokogawa AQ7275 Optical Time Domain Reflectometer (OTDR) is a high-performance instrument for fiber optic cable testing, fault location, and characterization across FTTH, RFoG, PON, Access, Metro, and Core networks. It operates in both field and laboratory environments with dynamic range up to 45 dB and event dead zone as short as 0.8 m, enabling detection of closely spaced faults in dense installations. The instrument reaches full operational status in approximately 10 seconds from power-off.
Technical Specifications
• Dynamic range: up to 45 dB (model-dependent configurations including 40 dB and 40/38 dB variants)
• Event dead zone: 0.8 m minimum
• Startup time: 10 seconds
• Distance measurement: ±eight digits with relative one-way direction display
• Loss measurement: 0.001 dB increments, 5-digit maximum, includes per-unit-length and splice loss analysis
• Return loss measurement: fiber cable and point-to-point capability
– Key Features
• Multiple wavelength configurations: 1310/1550 nm (single-mode), 850/1300 nm (multimode), 1310/1550/1650 nm (three-wavelength), and 850/1300/1310/1550 nm (four-wavelength)
• Internal memory and USB storage for measurement data
• External PC connectivity for remote control and data access
• Pass/Fail analysis and configuration save functionality
• Optional built-in dummy fiber (eliminates separate launch box; unavailable on 735041 model)
• Optional optical power monitor for optical power level measurement
• Optional stabilized light source (SLS) with continuous-wave or 270-Hz modulated output for loss measurement and fiber identification
– Typical Applications
• FTTH network installation and troubleshooting
• RFoG system characterization
• PON deployment and maintenance
• Access, Metro, and Core network testing
• High-loss splitter measurement
• Long-distance cable evaluation
• Dense environment fault detection
– Compatibility & Integration
Supports single-mode and multimode fiber configurations. Compatible with USB memory and external hard disk drives. Remote operation available via external PC connection.
