LF-067-Mini Handheld Fiber Optic OTDR 1310/1550nm 24/22dB 60km Optical Time Domain Reflectometer FTTH Tester

24/22 dB Mini OTDR for 1310/1550 nm FTTH Link Testing

Mini handheld OTDR for 1310/1550 nm single-mode fibre is designed for FTTH access links, distribution fibres, contractor acceptance and maintenance. NK3200 variants provide 24 dB at 1310 nm and/or 22 dB at 1550 nm with adjustable range and pulse width, SOR trace storage and model-dependent integrated OPM, VFL or copper-assistance functions.

The 60 km description is a nominal application/range reference, not a guarantee that every 60 km link can be fully characterised. The usable trace depends on total loss, reflections, splitter topology, wavelength, pulse width, averaging and event thresholds. Select the exact NK3200S1/S2/D/F model from the network and reporting requirement.

Best-Fit Applications and Configuration Choice

Why 24/22 dB and 60 km Are Not the Same Specification

Dynamic range expresses the loss span the instrument can observe under defined conditions. Distance range sets the display window. A low-loss 60 km route and a shorter high-loss splitter route can demand very different dynamic range. Buyers should calculate estimated total loss and leave measurement margin rather than select only by kilometres.

At short distance, dead zones and launch arrangement dominate. At long distance, pulse energy and averaging improve signal-to-noise but reduce event separation. The IOR value converts time to distance and must follow the fibre/cable data used by the project.

Technical Specifications

Configuration control: The original NK3200 Technical Specifications table is retained. Lock sub-model, wavelength, dynamic range, dead zones, live-test function, integrated modules, port, battery and accessories. IEC 61746-1 concerns OTDR calibration errors and uncertainty; request exact-unit evidence if specified by the project.

Trace Interpretation and Acceptance Limits

• Nominal distance: selectable 64 km range or 60 km marketing description does not guarantee event visibility at the far end.
• Dead zones: nearby connectors/events may merge; a launch fibre is required for the first connection.
• One-way trace: apparent splice loss may be biased by different backscatter coefficients; critical acceptance may require both directions.
• Integrated OPM/VFL: useful for troubleshooting but each function needs its own verification and method.
• Live testing: only the approved filtered F variant may be used on an active network and only under the operator procedure.

Common Field-Failure Risks and Prevention

Pre-shipment Quality and Acceptance Plan

• Verify NK3200 sub-model, wavelengths, dynamic range, dead zones, range/pulse options and live-test status.
• Test known reference events for distance, loss and reflection consistency.
• Confirm SOR file save/open/export, event table, thresholds, language and naming workflow.
• Check integrated OPM/VFL/RJ45 functions only where ordered and record their scope.
• Inspect port, display, battery, charger, case, launch cable/adapters, serial label and packing.

B2B Buyer Guide: Information Required for an Accurate Quote

• Network topology, maximum distance, estimated total loss and event spacing.
• 1310 nm, 1550 nm or dual wavelength; live-test requirement and approved filtered port.
• Dynamic range, dead zones, SOR/report workflow and bidirectional acceptance requirement.
• Launch/receive fibres, connector type/polish, adapters and cleaning/inspection tools.
• Integrated functions, language, plug, calibration/report scope, warranty, OEM label and packing.

Mini OTDR vs Telecom-Grade OTDR

Choose this NK3200 platform for portable FTTH work where 24/22 dB and its dead zones meet the link. Choose the NK5600 telecom-grade OTDR for higher specified range, shorter dead-zone requirements, larger display/reporting workflow or long-haul work. Use an OPM/OLS pair for contractual end-to-end insertion loss.

MOQ, Samples, Lead Time and Packing

Related Fiber Testing Tools

Complete the kit with a launch cable, reference patch cords, adapters, cleaning tools, fibre identifier and power meter. LinkFiber can supply consistent configuration and labels for multi-crew deployment.