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Fiber Optic Cables
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Cabling Accessories
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Fiber Optic Cables

OTDR Testers and Accessories for Fiber Link Testing

This range covers portable OTDR testers for fault location and link verification, plus a configurable launch/receive cable box for measuring events near the ends of a fiber link. Start by choosing the tester functions and wavelength plan your work requires, then match the launch fiber to the link's fiber type, connector polish and test procedure.

Which OTDR tester or accessory fits your work?

Choose a model page when you need a field tester, or use the product-line guide when the OTDR class is not yet defined. Add the launch/receive cable box when your procedure must separate near-end or far-end connector events from the OTDR dead zone.

OTDR RANGE

OTDR Product Lineup Guide

Use this entry when you need to compare mini, multifunction, high-performance and PON-focused OTDR classes before selecting a specific tester.

View Product Details →

ZCOTDR-2800

Mini OTDR with OPM and VFL

A 1310/1550 nm single-mode handheld tester with a 3.5-inch touchscreen, integrated optical power meter and visual fault locator for routine FTTH/FTTx work.

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ZCOTDR-3200

Mini Pro OTDR with Event Mapping

A portable 1310/1550 nm single-mode OTDR with event mapping, integrated OPM and VFL for crews that need clearer event interpretation.

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ZCOTDR-4200

Mini OTDR for PON and Field Maintenance

A 4.3-inch multifunction OTDR family with Event Map, model-dependent wavelengths and up to 26 dB dynamic range. Select the version for the planned PON or maintenance workflow.

View Product Details →

OTDR ACCESSORY

OTDR Launch / Receive Cable Box

A configurable 100–2000 m delay line for single-mode or multimode testing. Specify fiber type, input/output connectors and PC, UPC or APC polish.

View Product Details →

How do I choose an OTDR and its launch fiber?

Choose the tester and the launch fiber as one measurement setup. The OTDR must suit the network and reporting task; the launch fiber must match the tested link and provide enough distance for the selected test settings.

What network are you testing?

Use the OTDR product-line guide when the tester class is undecided. FTTH access work, active PON maintenance and long-span OSP testing can require different wavelengths, dynamic range and event resolution.

Need PON power checks?

Consider the ZCOTDR-4200 family when integrated split-wave or XGPON optical power measurement is part of the workflow. Confirm the exact model, wavelength and live-test limits before ordering.

What should the launch box match?

Match the fiber type and connector polish to the link and instrument port. The OTDR Launch Cable Box supports G.652D, G.657A and OM1–OM4 options with SC, LC, FC or ST connectors.

Launch only or launch plus receive?

Use a launch fiber at the OTDR side to separate the first link event from the launch dead zone. Add a receive fiber at the far end when the procedure must evaluate the final connector event.

Quick comparison

The table separates selection entries, tester models and the launch/receive accessory. Model-dependent functions must be confirmed against the selected version's datasheet.

Product / Entry	Verified Scope	Key Decision	Best Fit
OTDR Product Lineup Guide	Mini, multifunction, high-performance and PON-focused classes	Network, range, splitter and reporting needs	Early-stage model selection
ZCOTDR-2800	1310/1550 nm SM; 3.5 in touchscreen; OPM; VFL	Compact daily-use workflow	FTTH/FTTx access and routine maintenance
ZCOTDR-3200	1310/1550 nm SM; Event Map; OPM; VFL	Enhanced event interpretation	Access fiber diagnostics and acceptance
ZCOTDR-4200	1550, 1310/1550, 1625 or 1650 nm versions; 24–26 dB	Version, live-test and XGPON OPM needs	PON, OSP and multifunction field work
OTDR Launch Cable Box	100–2000 m; G.652D/G.657A/OM1–OM4; SC/LC/FC/ST	Fiber, connector, polish and length	Near-end and far-end event measurement

Where do these OTDR products fit?

These products cover access-network troubleshooting, PON maintenance, fiber acceptance and event measurement. They do not remove the need to match wavelengths, connector polish, fiber mode and test procedure to the actual link.

FTTH / FTTx installation

Use a portable OTDR for drop and distribution fault location, then add a matched launch fiber when connector events must be evaluated outside the instrument's dead zone.

PON / XGPON maintenance

Select the exact ZCOTDR-4200 version around the deployed wavelengths and power-measurement task. Live-network work must stay within the selected version's stated limits and site procedure.

Acceptance and handover

Use launch and receive fibers when both end connectors must be characterized. Record pulse width, wavelength, refractive index, launch length and link configuration so results can be repeated.

Long-span or splitter-heavy links

Do not assume a mini OTDR is sufficient. Confirm the required dynamic range, wavelength, splitter loss budget and event resolution, then select the appropriate OTDR class or model.

Frequently Asked Questions

What is an OTDR launch cable box?

It is a known length of fiber placed between the OTDR and the link under test. The added distance moves the first link event beyond the instrument's launch dead zone so the near-end connector can be evaluated.

What is the difference between ZCOTDR-2800, 3200 and 4200?

The 2800 is positioned for compact routine testing, the 3200 adds enhanced event mapping, and the 4200 family adds more model-dependent wavelength and multifunction options. Confirm the exact datasheet before comparing performance limits.

Do I need both a launch cable and a receive cable?

Use both when the test procedure requires measurement of the first and last connectors. A launch cable addresses the near end; a receive cable provides fiber beyond the far-end connector so that final event can be characterized.

Can one launch box test both single-mode and multimode links?

No single fiber insert should be treated as interchangeable across modes. Configure the launch box with the fiber type that matches the link under test, and also match connector type and polish.

How long should an OTDR launch fiber be?

It must be long enough for the selected OTDR, pulse width and test procedure, but there is no universal length for every job. The available box supports 100–2000 m; confirm the required length for the instrument and link.

RFQ Checklist

If the exact specification is not known, describe the network and the test task first. The following details allow the tester and launch/receive configuration to be checked without guessing.