The Yokogawa AQ7270 is a high-performance Optical Time Domain Reflectometer (OTDR) engineered for precise fault location, loss measurement, and fiber characterization across telecommunications, datacom, and cable TV networks. Power-up in under 10 seconds and automated measurement modes enable rapid deployment and simplified operation. The instrument detects closely spaced events with an event dead zone below 0.8 meters, making it suitable for FTTH networks through metro spans exceeding 100 km.
Technical Specifications
• Wavelengths: Single mode (1310 nm, 1490 nm, 1550 nm, 1625 nm, 1650 nm); multi mode (850 nm, 1300 nm)
• Dynamic Range: Up to 40 dB
• Event Dead Zone: < 0.8 meters
• Attenuation Dead Zone: 7–12 meters (single mode fibers, typical)
• Distance Range: Up to 400.00 km (model dependent)
• Pulse Widths: 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 µs, 2 µs, 5 µs
• Display: 8.4" LCD
• Power-Up Time: < 10 seconds
– Key Features
• Full Auto Mode for optimal measurement condition selection
• Detail Mode for manual parameter adjustment by trained technicians
• Multi Wavelength Measurement—sequential automated testing of specified wavelengths
• Batch Measurement—executes up to five saved procedures in sequence
• Multi Trace Analysis (overlay up to four traces) and 2 Way Trace Analysis for bi-directional splice loss measurement
• SC type optical connectors
• Available in eleven models across wavelength and dynamic range combinations
– Optional Capabilities
• Power Monitoring Function (/PM Option) for optical power verification and link loss testing
• Light Source Function (/LS Option) for fiber identification
– Compatibility & Integration
• USB 1.1 (Type A and Type B) for data storage, printing, and PC communication
• Optional Ethernet interface for remote control and PC communication
• Direct USB printer support
• External data storage via USB memory or USB hard disk
• Operates on AC adapter or specified battery pack

















