Description

OTDR QX55 Series – QX55-P / QX55-S

The QX55 Series Optical Time Domain Reflectometer (OTDR) is a compact and professional fiber-optic testing solution designed for the installation, commissioning, maintenance, and troubleshooting of modern fiber-optic networks.

Available in QX55-P and QX55-S models, the QX55 Series features a built-in Visual Fault Locator (VFL) and a 32 dB dynamic range, providing technicians with a practical solution for analyzing fiber links and identifying faults.

The QX55-P supports 1310nm, 1550nm, and 1625nm wavelengths, while the QX55-S supports 1310nm and 1550nm wavelengths. Both models feature a 2800mAh lithium-ion battery, providing convenient portable operation for field technicians.

An optional USB/FIP interface inspection function is available for users who require additional fiber connector and interface inspection capabilities.

Key Features

• Professional Optical Time Domain Reflectometer (OTDR)
• Built-in Visual Fault Locator (VFL)
• 32 dB dynamic range
• Compact and portable design
• 2800mAh lithium-ion rechargeable battery
• Multiple wavelength options depending on model
• Optional USB/FIP interface inspection
• Suitable for fiber installation, testing, maintenance, and troubleshooting
• Designed for field technicians and fiber network professionals

Available Models

OTDR QX55-P

The QX55-P is a multi-wavelength OTDR designed for a broad range of fiber-optic testing applications.

Specifications:

Feature	QX55-P
Product Type	Optical Time Domain Reflectometer
VFL	Built-in
Dynamic Range	32 dB
Wavelengths	1310 / 1550 / 1625nm
Battery	2800mAh Li-ion
Interface Inspection	USB/FIP – Optional
Application	Fiber Optic Testing & Troubleshooting

OTDR QX55-S

The QX55-S provides reliable fiber testing and fault analysis with support for the commonly used 1310nm and 1550nm wavelengths.

Specifications:

Feature	QX55-S
Product Type	Optical Time Domain Reflectometer
VFL	Built-in
Dynamic Range	32 dB
Wavelengths	1310 / 1550nm
Battery	2800mAh Li-ion
Interface Inspection	USB/FIP – Optional
Application	Fiber Optic Testing & Troubleshooting

Applications

The QX55 Series OTDR is suitable for:

• FTTH and FTTx network installation
• GPON and fiber access network testing
• Fiber optic cable installation
• Fiber link commissioning
• Fiber network maintenance
• Fiber fault troubleshooting
• ISP network deployment and maintenance
• Telecom infrastructure testing
• Long-distance fiber link testing
• Fiber cable repair and restoration
• ODF and fiber distribution network testing

Built-in VFL

The integrated Visual Fault Locator (VFL) provides visible red laser light for locating common fiber faults. It can assist technicians in identifying fiber breaks, excessive bends, damaged sections, and poor connections during installation and troubleshooting.

32 dB Dynamic Range

With a 32 dB dynamic range, the QX55 Series is designed to provide useful measurement capability for a wide range of fiber-optic testing and fault-location applications. This makes it suitable for technicians working on access, distribution, and other fiber network segments.

Portable Field Operation

The QX55 Series is designed for field use and is powered by a 2800mAh lithium-ion battery, allowing technicians to carry out fiber testing and troubleshooting without relying continuously on mains power.

Its portable design makes it suitable for use at customer premises, fiber distribution points, telecom sites, ISP installations, and other network locations.

Optional Interface Inspection

For applications requiring additional connector and interface inspection capabilities, the QX55 Series can be equipped with an optional USB/FIP interface inspection function.

Product Comparison

Specification	QX55-P	QX55-S
VFL	Built-in	Built-in
Dynamic Range	32 dB	32 dB
Wavelengths	1310 / 1550 / 1625nm	1310 / 1550nm
Battery	2800mAh Li-ion	2800mAh Li-ion
USB/FIP Interface Inspection	Optional	Optional
Fiber Testing	✓	✓
Fault Location	✓	✓
FTTH/FTTx Applications	✓	✓

Why Choose the QX55 Series?

The QX55-P and QX55-S OTDRs combine fiber testing, fault location, VFL functionality, and portable battery-powered operation in a compact field instrument. With model-specific wavelength configurations and a 32 dB dynamic range, the QX55 Series provides technicians with a practical solution for fiber network installation, maintenance, and troubleshooting.

Choose QX55-P for 1310/1550/1625nm testing or QX55-S for 1310/1550nm applications.