JW3302SJ Mini Pro 8-in-1 OTDR Fiber Tester

The JW3302SJ Mini Pro 8-in-1 OTDR Fiber Tester is designed to address the common problems that occur while maintaining fiber optic systems and access networks (FTTx). Thanks to its ease of use, technicians can quickly find broken fiber cables, check cable lengths, test for fiber loss, and check for proper fiber connections. With one button, the unit performs an automatic test and provides instant feedback. The lightweight and compact design makes it simple to store and transport. It is also ideal for use in tight spaces such as urban fiber optic wiring closets and residential installations. The 4,000 mAh battery provides over four hours of continuous testing, translating to a full day of typical intermittent field use. The durable rubber case of the JW3302SJ can withstand rough treatment on job sites.

Core Functions

The JW3302SJ combines eight separate functions into one unit. The OTDR function generates detailed diagnostic traces, mapping every event along the fiber link with precision. The Event Map function allows the user to see all of the problem areas on the fiber link at a quick glance. The Optical Power Meter (OPM) function accurately measures the amount of light being received at each input. The Stable Light Source function allows for accurate loss measurements to be taken. The VFL function uses a red laser to help technicians find breaks within seconds. The RJ45 function verifies that cables are in the proper order and that they are connected properly using a remote unit. The Integrated LED Light allows technicians to perform work at night. The Insertion Loss Test confirms the quality of the fiber link. The Intuitive Interface enables seamless switching between modes—no additional training or gear required.

Detailed Specifications

Main Specifications

OPM Specifications

Light Source Specifications

VFL Specifications

Usage Scenarios

It can be used for FTTH installations and CATV repairs. When a fiber cut is found, the OTDR can be run to view the event map immediately. The OPM can be used to check the power levels prior to splicing. The VFL can assist with identifying patch panel faults. Integrated RJ45 tools streamline multi-media installations by verifying LAN cable integrity on-site. Testing the losses in HFC or POL networks can be done end-to-end. The unit is also ideal for verifying point-to-point fiber optic connections and testing the secondary splitters in FTTx applications. The unit accelerates service turn-up for residential broadband network deployments. In addition, maintenance personnel will have the product available when servicing DAS and FTTA cell tower systems.

Controls and Interface

The buttons are simple and intuitive. The power button turns the unit on. The Enter key is used to confirm commands and enter through the menu format. The Measure button will begin the OTDR testing. The Back button will exit from the current screens. The Arrow keys will be used for scrolling through the menus in the event of needing to navigate and select between options. The Zoom button will allow the trace lines to be enlarged or reduced in size. The top ports of the unit are for VFL, OPM, Flashlight, and OTDR/LS. The left side has a TF card slot and USB slot. The right side has a reset button and RJ45 port. The display will remain legible in sunlight.

Package Contents

This tester saves time and cuts costs. Field techs report fewer call-backs thanks to accurate traces. Battery life matches typical shifts. Rugged build survives tool boxes.