EXFO LFD-202 Live Fiber Detector
The EXFO LFD-202 Live Fiber Detector identifies optical signals on active fibers without disconnection. It detects traffic presence and direction across standard wavelengths, offering a quick, safe, and efficient method for fiber identification and testing in live optical networks.
- Model
- Exfo LFD-202
- Calibration
- Available on request
- Price
- $3,130
- Status
- In stock
- RFQ ref
- LFD-202
This unit
The EXFO LFD-202 Live Fiber Detector is a handheld instrument for non-destructive detection of optical signals on active fibers without disconnection. Using a safe macrobending technique, it identifies traffic presence and direction, performs continuity testing, and verifies cable integrity while preserving network uptime and fiber integrity.
Technical Specifications
The LFD-202 operates across a spectral range of 800 nm to 1650 nm with insertion loss below 0.6 dB at 1310 nm. Power measurement spans 0 to -40 dBm, with the LFD-202E model extending to 23 to -50 dBm. Mean detectable signal power for singlemode fiber at 1310 nm reaches -40 dBm. Minimum detector sensitivity for bare ribbon fiber is -40 dBm at 1310 nm and -50 dBm at 1550 nm. The device detects continuous and modulated signals, with optical tone receiver frequencies of 270 Hz, 1 kHz, and 2 kHz. Fiber compatibility includes singlemode (8 µm to 10 µm core diameter), dual window singlemode, multimode, and ribbon fiber. Detection requires minimum fiber slack of 1.9 cm (3/4 in) or 1.2 cm (1/2 in) depending on fiber type. Interchangeable fiber heads support 3 mm, 900 µm, and 250 µm/ribbon configurations, with optional 2 mm and 1.6 mm heads available. Dedicated heads exist for jacketed fiber, coated fiber, and both bare and jacketed ribbon fiber. The device operates on a standard 9 V alkaline battery with approximately 5000 readings per charge.Key Features
- Non-disruptive macrobending detection preserves traffic flow and prevents fiber stress
- Simple one-button operation with hands-free Hold function
- Core power display for accurate signal measurement
- Over-range indicator for out-of-specification signals
- Compact form factor: 236 mm × 30 mm × 32 mm, weighing 0.3 kg
Typical Applications Fiber identification, continuity verification, fault detection, network maintenance, and emergency restoration tasks.
Compatibility & Integration Operates from -20 °C to 50 °C with storage capability to -40 °C to 70 °C. Humidity tolerance: 0 % to 95 % non-condensing (0 % to 90 % at 35 °C).
Specifications
| Parameter | Value |
|---|---|
| Power Range (dBm) | 0 to -40 dBm (standard) |
| 23 to -50 dBm (LFD-202E) | Voltage / Current Range | 9 V alkaline battery | Wavelength Range: 800 nm to 1650 nm |
Exfo LFD-202 — Repair & Calibration Service
Aumictech offers NIST-traceable calibration and repair for the Exfo LFD-202. Calibration covers detector responsivity at 850, 1310, 1490, 1550, and 1625 nm, absolute power accuracy, linearity across the full dynamic range, and reference power level. All calibrations ship with a NIST-traceable certificate. Turnaround is typically 1–3 business days after receipt.
Common Exfo LFD-202 faults: detector contamination, damaged FC/PC input port, display failure. Common repairs include detector port cleaning or replacement, display repair, and battery or capacitor replacement in older HP/Agilent/Keysight units.
Exfo LFD-202 price
This Exfo LFD-202 is listed at $3,130. Calibration is available separately from $450. Contact us for volume pricing or if you need multiple units.
Exfo LFD-202 calibration cost
NIST-traceable calibration for the Exfo LFD-202 is $450 (standard — pass/fail certificate and calibration sticker) or $650 (full measured data at every test point, reference standards documented, traceability chain included). Calibration for this instrument covers detector responsivity at 850, 1310, 1490, 1550, and 1625 nm, absolute power accuracy, linearity across the full dynamic range, and reference power level. Turnaround is 1 to 3 business days after receipt. See full calibration details →
