The Anritsu MU100020A is an OTDR module for the MT1000A Series Network Master Pro, delivering single-mode fiber characterization at 1310 nm and 1550 nm wavelengths. This module performs fault location, length measurement, and loss analysis on ITU-T G.652 SMF (10/125 µm), with dynamic range of 39 dB at 1310 nm and 37.5 dB at 1550 nm. Event dead zone reaches ≤80 cm typical, while backscatter dead zone is ≤3.8 m (1310 nm) and ≤4.3 m (1550 nm) at IOR 1.500000. Distance measurement capability extends to 100 km with up to 250,001 sampling points.
## Technical Specifications
• **Wavelengths:** 1310 nm / 1550 nm
• **Fiber Type:** Single-Mode Fiber (SMF) – 10/125 µm ITU-T G.652
• **Dynamic Range:** 39 dB (1310 nm) / 37.5 dB (1550 nm); 46 dB typical for core/metro/access networks
• **Event Dead Zone:** ≤80 cm (typical)
• **Backscatter Dead Zone:** ≤3.8 m (1310 nm) / ≤4.3 m (1550 nm) typical at IOR 1.500000
• **Index of Refraction Range:** 1.300000 to 1.700000 (0.000001 step resolution)
• **Maximum Distance Range:** 100 km
• **Sampling Points:** Up to 250,001
## Key Features
• Fiber Visualizer function with graphical summary and traditional OTDR trace toggle
• Multi-pulse measurement for high-accuracy event detection
• Manual waveform analysis for fiber distance, loss, and return loss characterization
• Connector inspection with IEC 61300-3-35 Pass/Fail criteria support and Video Inspection Probe compatibility
• Macro-bend detection and analysis
• Bi-directional and multi-waveform measurement/display capability
• Optical communications signal and connection check functionality
• Built-in light source and optical power meter (standard); optional visible light source
• PON network evaluation with splitter support up to 128 branches
• User-settable Pass/Fail thresholds per event with intuitive GUI
• PDF report generation
• Shared OTDR data format support
## Typical Applications
• Core and metro network fiber characterization up to 100 km
• PON system evaluation and splitter analysis
• FTTA (Fiber to the Antenna) measurement
• Optical loss test set (OLTS) operation
• Construction mode deployment verification
## Compatibility & Integration
Designed exclusively for the MT1000A Series Network Master Pro. Standard accessories include universal connectors (2.5 mm and 1.25 mm for OPM) and quick reference guide.


















