The Anritsu MT9085A ACCESS Master is a handheld optical time domain reflectometer (OTDR) for fiber optic link characterization and fault localization across core, metro, mobile fronthaul/backhaul, and access networks. This instrument delivers high-resolution measurements and event detection with straightforward operation, supporting fiber spans up to 200 km and PON networks up to 1 × 128 branches.
Technical Specifications
Optical Performance
• Dynamic range: 39 dB (1310 nm SMF) / 37.5 dB (1550 nm SMF)
• Event dead zone: ≤ 1 m
• Backscatter dead zone: ≤ 5 m (1310 nm) / ≤ 5.5 m (1550 nm)
• Maximum fiber length: 200 km
• Operating wavelengths: 1310 nm and 1550 nm (single-mode fiber)
User Interface
• 8-inch color LCD touchscreen with rotary knob and dedicated hard keys
• Real-time sweep modes: high-speed and high signal-to-noise ratio
• Trace magnification, cursor operation, and marker positioning
Data & Connectivity
• WLAN, Bluetooth, and USB memory data transfer
• Telcordia format support
• 12-hour battery operation
– Key Features
• Fiber continuity break detection and event localization (splices, connectors, breaks, macrobends)
• Optical loss and reflectance measurement with high-accuracy detection
• Fiber end-face inspection capability
• Fiber Visualizer function for schematic path analysis with at-a-glance event confirmation
• Automatic Pass/Fail evaluation based on preset thresholds and international standards
• Built-in light source, optical power meter, and visual light source options
• PON network measurement support (up to 1 × 128 branches)
– Typical Applications
• Installation and maintenance of single-mode fiber networks
• Mobile fronthaul and backhaul infrastructure verification
• Access and metro network commissioning and troubleshooting
• Core network fiber characterization
• Fast fiber bend location and connection status monitoring
– Compatibility & Integration
The MT9085A integrates optional built-in modules for light source, optical power measurement, and visual light source functions. It maintains operational familiarity with the ACCESS Master series, enabling efficient field deployment across diverse network environments.


















