The Anritsu MW9070B is a portable Optical Time Domain Reflectometer (OTDR) engineered for fiber optic installation, commissioning, and maintenance across diverse network architectures. This field-rated instrument delivers automated fault detection with simultaneous waveform trace and event table visualization on a 7-inch semi-transparent LCD display, enabling rapid diagnostics in both indoor and outdoor environments.
Technical Specifications
Physical & Operational
• Dimensions: 290 (W) × 120 (H) × 35 (D) mm
• Weight: 3.2 kg (7.05 lbs)
• Battery runtime: >5 hours continuous operation
• Display: 7-inch LCD, semi-transparent for indoor/outdoor visibility
• Construction: Dustproof, field-rated design
Measurement Performance
• Dynamic range: Up to 41.5/39.5 dB (with MW0972C optical unit); 36/34 dB (with MW0970B/0972B)
• Dead zone: 3 m Fresnel / 8 m back-scattered (MW0972C); 5 m event / 25 m attenuation (MW0970B/0972B)
• Distance accuracy: ±2 m ± (10⁻⁴ × distance) ± marker resolution
• Loss linearity: ±0.05 dB/dB or 0.1 dB minimum
• Return loss accuracy: ±4 dB
• Threshold range: 0.01 dB to 9 dB in 0.01 dB increments
• Typical measurement time: 45 seconds (5 km @ 1.31 µm, 0.35 dB/km loss, auto settings)
• Maximum auto-measurement time: 180 seconds
Safety Classification
• OTDR Output: 21CFR Class 1, IEC Class 1
• Optional Visual LD Light Source: 21CFR Class 2, IEC Class 2
– Key Features
• Automated fault location and connector status verification
• High-speed real-time sweep function (0.4 s with MW0970B/0972B)
• Automatic optimization of distance range, pulse width, and averaging parameters
• Event editing and waveform comparison for loss change detection
• Simultaneous display of trace waveform and event table
• Measures transmission loss, connection loss, and return loss
– Typical Applications
• Optical trunk line installation and commissioning
• Subscriber line diagnostics
• Optical CATV cable verification
• Optical LAN infrastructure testing and troubleshooting
– Compatibility & Integration
Six interchangeable optical units support single-mode and multimode fiber at multiple wavelengths: MW0970B (1.31 µm SMF), MW0972B (1.31/1.55 µm SMF), MW0972C (1.31/1.55 µm SMF enhanced performance), MW0973J (0.85 µm GIF), and MW0975J (0.85/1.3 µm GIF).
