OTDR tester PRO MINI 980EXP-D28 1310 nm / 1550 nm

The OTDR tester PRO MINI 980EXP-D28 is a handheld instrument for characterization and troubleshooting of single-mode fiber-optic links at 1310 nm and 1550 nm wavelengths. Designed for field technicians, the device detects and locates faults, measures attenuation and event distances, and verifies the quality of splices and connectors. Its compact, lightweight design and battery operation make it suitable for installation, maintenance and on-site diagnostics of fiber networks.

Advantages

The tester provides accurate distance and loss measurements at the two most common single-mode wavelengths, enabling clear identification of events such as splices, connectors, breaks and bends. Its portable format and straightforward controls simplify field work, while fast trace acquisition reduces inspection time. The device supports visual confirmation of link integrity and stores measurement traces for later analysis and reporting.

Suitable for

• Installation and certification of single-mode fiber optic cables
• Routine maintenance and verification of network links
• Fault localization and repair in fiber backbones and access networks
• Verification of splices, connectors and attenuation over distances

Key specifications

• Wavelengths: 1310 nm and 1550 nm
• Handheld, battery-powered form factor for field use
• Distance measurement and event location capability
• Loss/attenuation measurement for fibers and events
• Trace storage for later review and documentation
• Ruggedized housing suitable for on-site conditions

How to use

Connect the OTDR tester to the fiber under test using appropriate adapters or launch fibers, select the required wavelength (1310 nm or 1550 nm) and set the range and resolution according to link length. Start the trace acquisition and inspect the displayed trace to identify reflection and non-reflection events, measure distances to faults, and read event loss values. Save traces for reporting and comparative analysis. Follow standard safety and handling procedures for fiber-optic work, including eye safety and proper connector cleaning.

Usage recommendations

For consistent and repeatable results, use a launch/receive fiber where applicable, clean connectors before measurement, and select acquisition parameters (range, pulse width) that match the link length and expected event density. Store measurement traces and document measurement conditions to facilitate troubleshooting and acceptance reports.