The EXFO LFD-202E Live Fiber Detector is a non-intrusive field instrument for detecting live optical signals on single-mode fibers without interrupting active network services. Using safe macrobending detection, it identifies signal presence, type, and direction across the dual-window spectrum while preserving fiber integrity. The compact, battery-powered design delivers core power measurements, signal analysis at multiple modulation frequencies, and directional identification—enabling rapid troubleshooting and network maintenance in the field.
Technical Specifications
Power Detection
• Measurement range: +23 dBm to −50 dBm
• Accuracy: Typically within 2 dB
Signal Analysis
• Detects presence or absence on single-mode fibers
• Analyzes continuous and modulated signals at 270 Hz, 1 kHz, and 2 kHz
• Identifies signal direction
Optical Performance
• Spectral response: 800 nm to 1700 nm
• Insertion loss: < 0.6 dB at 1310 nm
• Compatible with 8 µm to 10 µm core diameter fibers, 250 µm coating diameter
Display & Indicators
• Multifunction LED display with core power readout
• Over-range, traffic, tone, and low battery indicators
Power Supply
• Standard 9V alkaline battery
• Battery life: Approximately 5000 readings
Environmental
• Operating temperature: −20 °C to +50 °C
• Storage temperature: −40 °C to +70 °C
• Relative humidity: 0% to 95% non-condensing
– Key Features
• Non-destructive macrobending detection technique
• Interchangeable fiber heads for jacketed fibers (1.6 mm, 2 mm, 3 mm, 900 µm) and coated/ribbon fibers (250 µm)
• Locked slider enables hands-free operation
• Internal compartment for adapter head storage
• Compact form factor: 236 mm × 30 mm × 32 mm; weight 0.3 kg
– Compatibility & Integration
Dual-window, single-mode fiber operation. Supplied with four jacketed fiber adapter heads and full detector unit.
