
High-precision OTDR with integrated VFL, Power Meter, and Laser Source for fast, accurate FTTH & PON fiber testing.
The LOT5200 Series OTDR is a versatile, high-performance fiber testing platform designed to help technicians perform accurate measurements with minimal complexity. Combining multiple essential test functions in a single compact unit, the LOT5200 integrates an OTDR, Optical Power Meter, Stabilized Laser Source, Visual Fault Locator, Loss Tester, Event Map, and optional fiber inspection module. This multi-tool approach enables technicians to evaluate optical fiber links efficiently during installation, troubleshooting, and routine maintenance.
Built around a 7-inch capacitive touchscreen and an intuitive interface, the LOT5200 provides a smooth user experience even in demanding field conditions. Its lightweight 1.1–1.2 kg design, long battery life, and rugged housing—resistant to dust, shock, and moisture—make it suitable for daily field operations. Short dead zones (1 m event and 5 m attenuation) enable accurate detection of near-end events, while a wide selection of wavelengths and model configurations ensures compatibility with FTTH, PON, backbone, and multimode networks.
The embedded analysis tools support automatic and manual testing, multi-curve comparison, event return loss measurement, splice and connector detection, and in-line PON testing through splitters. Test results can be saved, exported through USB or SD card, and processed with PC software capable of multi-trace comparison, bidirectional analysis, and batch reporting.
With model options offering dynamic ranges from 22 dB to 45 dB and wavelength combinations spanning 850/1300 nm, 1310/1490/1550 nm, and 1625 nm, the LOT5200 Series can be tailored to specific operational needs—from multimode LAN verification to advanced PON diagnostics. Every unit is supplied with essential accessories and calibration documentation, ensuring readiness for immediate field deployment.
The LOT5200 Series OTDR delivers a dependable, practical, and complete testing solution for fiber optic professionals who require accuracy, efficiency, and adaptability in a single instrument.
Display: 7-inch TFT capacitive touch screen, 800×480 pixels
Connectivity: USB Type-A ×1, USB Type-B ×1
Storage Capacity: 16 GB internal memory
Power Supply: Rechargeable Li-ion battery 7.4 V / 2500 mAh ×2 or AC adapter
Battery Life: Over 8 hours continuous operation; 20 hours standby
Operating Temperature: –10°C to +50°C
Storage Temperature: –40°C to +80°C
Humidity: 0–95% non-condensing
Weight: 1.2 kg (including battery)
Dimensions: 215 × 155 × 68 mm
| Model | Wavelengths (±20 nm) | Dynamic Range (dB) | EDZ (m) | ADZ (m) |
|---|---|---|---|---|
| LOT5200-SD35 | 1310/1550 | 35/33 | 1 | 5 |
| LOT5200-SD40 | 1310/1550 | 40/38 | 1 | 5 |
| LOT5200-SD42 | 1310/1550 | 42/40 | 1 | 5 |
| LOT5200-SD45 | 1310/1550 | 45/43 | 1 | 5 |
| LOT5200-SS32 | 1625 | 32 | 1 | 5 |
| LOT5200-SS35 | 1625 | 35 | 1 | 5 |
| LOT5200-SS38 | 1625 | 38 | 1 | 5 |
| LOT5200-SS40 | 1625 | 40 | 1 | 5 |
| LOT5200-SP35 | 1310/1490/1550 | 35/33/33 | 1 | 5 |
| LOT5200-ST35 | 1310/1550/1625 | 35/33/32 | 1 | 5 |
| LOT5200-ST40 | 1310/1550/1625 | 40/38/37 | 1 | 5 |
| LOT5200-ST42 | 1310/1550/1625 | 42/40/38 | 1 | 5 |
| LOT5200-MD26 | 850/1300 | 22/26 | 1.2 | 8 |
| LOT5200-SM32 | 1310/1550/850/1300 | 32/30/22/26 | 1 (SM) / 1.2 (MM) | 5 (SM) / 8 (MM) |
| LOT5200-SM35 | 1310/1550/850/1300 | 35/33/22/26 | 1 (SM) / 1.2 (MM) | 5 (SM) / 8 (MM) |
| LOT5200-SM40 | 1310/1550/850/1300 | 40/38/22/26 | 1 (SM) / 1.2 (MM) | 5 (SM) / 8 (MM) |
Notes:
Dynamic range measured at maximum pulse width, 3-minute averaging, SNR=1.
EDZ measured at 3 ns pulse width; ADZ measured at 5 ns.
1625 nm wavelength can be customized to 1650 nm.
Pulse Width:
Singlemode (SM): 3 ns, 5 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 μs, 2 μs, 5 μs, 10 μs, 20 μs
Multimode (MM): 3 ns, 5 ns, 10 ns, 20 ns, 50 ns, 100 ns, 200 ns, 500 ns, 1 μs, 2 μs
Minimum Sampling Resolution: 0.05 m
Maximum Sampling Points: 256,000
Linearity: ≤0.05 dB/dB
Loss Resolution: 0.001 dB
Distance Resolution: 0.01 m
Distance Accuracy: ± (1 m + measurement distance × 3×10⁻⁵ + sampling resolution), excluding IOR uncertainty
Reflectance Accuracy: ±2 dB (SM), ±4 dB (MM)
Connectors: FC/UPC & SC/UPC (standard)
Wavelength: 650 nm
Output Power: 10 mW @ CW
Modes: CW / 2 Hz
Wavelengths: 1310 nm, 1550 nm
Output Power: –5 dBm ±2 dB @ CW
Modulation: CW / 270 Hz / 1 kHz / 2 kHz
Calibrated Wavelengths: 850, 1300, 1310, 1490, 1550, 1625, 1650 nm
Measurement Ranges:
Range A: –70 to +10 dBm (–60 to +6 dBm @ 850 nm)
Range B: –50 to +23 dBm (–40 to +20 dBm @ 850 nm)
Detector Type: InGaAs
Display Resolution: 0.01 dB
Accuracy: ±5% ±0.01 nW (±0.5 dB @ 850 nm)
Magnification: 400×
Resolution: 0.75 μm
Sensor: 1.3 MP
Probe Weight: 0.14 kg
Dimensions: 22 × 3 × 3 cm
USB interface: 1.0/1.1/2.0
Standard & optional tips for FC/SC/ST/E2000/LC/MU (UPC & APC)
Main OTDR unit
Lithium batteries ×2
16 GB storage card
Manual
PC software
Mini USB cable
Power adapter
Carrying bag
Calibration report
LOT-5200, OTDR, PON tester, FTTH OTDR, integrated power meter, fiber optic testing, VFL, laser source, LinkU OTDR, optical reflectometer