Komshine QX45 OTDR Instruction Manual

1. Introduction

The Komshine QX45 Optical Time Domain Reflectometer (OTDR) is a high-performance testing instrument designed for singlemode fiber optic networks. It provides accurate and efficient analysis of fiber links, identifying faults, measuring loss, and determining fiber length. This manual provides essential information for the proper setup, operation, and maintenance of your QX45 OTDR.

The QX45 model supports wavelengths of 1310/1550nm with a dynamic range of 32/30dB. It features a built-in Visual Fault Locator (VFL) for quick identification of fiber breaks and bends. The device is available with user interfaces in English, Spanish, and Portuguese.

2. Product Features

The Komshine QX45 OTDR is equipped with a range of features to enhance fiber optic testing efficiency and reliability:

• Fast Processing: Short test times and rapid analysis speed.
• SD Card Storage: Easy storage and retrieval of measurement data.
• USB Connection: Connects to a computer for data analysis and review.
• VFL Detection: Integrated Visual Fault Locator for quick breakpoint detection (available only in QX45 model).
• TFT LCD Display: High-contrast 3.5-inch color TFT-LCD touch screen for clear visuals and intuitive operation.
• Automatic Detection: Automatic detection of input laser signals.
• High Dynamic Range: Up to 32/30dB for comprehensive testing.
• Extra-Short Event Dead Zone: Less than 3 meters for precise event localization.
• Long Battery Life: Built-in lithium battery provides over 15 hours of continuous operation (4200mAh).
• Multiple Language Support: English, Spanish, and Portuguese user interfaces.
• Durable Design: Shock resistant, drop resistant, water resistant, and dust resistant for use in various environments.
• Silicone Keypad: Comfortable and quiet operation.

3. Package Contents

Verify that all items listed below are included in your package:

4. Initial Setup

1. Unpack the Device: Carefully remove the OTDR and all accessories from the packaging.
2. Charge the Battery: Connect the charger to the OTDR and a power outlet. Ensure the device is fully charged before first use. The lithium battery provides over 15 hours of operating life when fully charged.
3. Insert SD Card: Insert the provided 16GB SD card into the designated SD card slot on the device. This is used for storing measurement traces.
4. Attach Connectors: Depending on your fiber type, attach the appropriate FC-SC or SC-SC adapter to the OTDR port. The device supports various connector types including FC, ST, SC (optional), and LC (optional).
5. Power On: Press and hold the power button to turn on the OTDR.
6. Language Selection: If prompted, select your preferred language (English, Spanish, or Portuguese) from the on-screen menu.

5. Operating Instructions

5.1 Basic OTDR Measurement

1. Connect Fiber: Connect the fiber optic cable to be tested to the OTDR port using the appropriate adapter. If using a launch cable, connect it between the OTDR and the fiber under test.
2. Access OTDR Function: From the main menu, select the OTDR function.
3. Set Parameters: Configure measurement parameters such as wavelength (1310nm or 1550nm), pulse width, and distance range using the touch screen or keypad. The device offers pulse widths from 10ns to 20480ns and distance ranges up to 256km.
4. Start Measurement: Press the 'Start' or 'Measure' button to initiate the fiber scan. The OTDR will display the trace on the TFT-LCD screen.
5. Analyze Results: The GUI interface provides a clear visual representation of the fiber trace, showing events like splices, connectors, and fiber ends. Key metrics such as total loss, length, and attenuation will be displayed.
6. Save Data: Save the measurement results to the SD card for later analysis using the included Curve Analyze Software.

5.2 Using the Visual Fault Locator (VFL)

The QX45 model includes a built-in VFL for quick visual inspection of fiber integrity.

1. Connect Fiber: Connect the fiber to be inspected to the VFL port.
2. Activate VFL: From the main menu or dedicated button, activate the VFL function. A red laser light will be emitted into the fiber.
3. Inspect Fiber: Observe the fiber for any visible light leakage, which indicates breaks, macro-bends, or faulty connectors.

6. Maintenance

6.1 Cleaning the OTDR Ports

Regular cleaning of the optical ports is crucial for accurate measurements and to prevent damage to the device and fiber connectors.

• Always power off the device before cleaning.
• Use the provided clean swabs or other approved fiber optic cleaning tools.
• Gently clean the ferrule and adapter sleeves of the OTDR ports.
• Ensure all connectors and adapters are clean before connecting them to the OTDR.

6.2 Battery Care

• Recharge the battery regularly, even if the device is not in frequent use, to maintain battery health.
• Avoid exposing the device to extreme temperatures, which can degrade battery performance.

6.3 General Care

• Store the OTDR in its carry bag when not in use to protect it from dust and physical damage.
• Avoid dropping the device or subjecting it to strong impacts, despite its robust design.
• Keep the screen clean using a soft, lint-free cloth.

7. Troubleshooting

If you encounter issues with your Komshine QX45 OTDR, try the following basic troubleshooting steps:

• No Power: Ensure the battery is charged. Connect the charger and try powering on again.
• Inaccurate Measurements: Clean all optical connectors and ports thoroughly. Ensure the correct fiber type and measurement parameters are selected. Check if the launch cable (if used) is in good condition.
• VFL Not Working: Verify that the VFL function is enabled and the fiber is properly connected to the VFL port.
• Screen Unresponsive: If the touch screen is unresponsive, try restarting the device. If the issue persists, contact support.
• Data Transfer Issues: Ensure the USB cable is securely connected to both the OTDR and the computer. Verify that the SD card is properly inserted and not full.

For more complex issues, refer to the detailed user manual (PDF, if available) or contact Komshine technical support.

8. Specifications

9. User Tips

• Always use a launch cable (also known as a pulse suppressor box or fiber ring) when testing short fiber runs or the first connector of a fiber link. This helps to absorb the OTDR's dead zone and allows for accurate measurement of the first connector.
• Ensure all fiber end-faces are meticulously clean before connecting them to the OTDR or other fiber components. Contamination is a leading cause of inaccurate measurements and potential damage.
• Familiarize yourself with the different pulse width settings. Shorter pulse widths offer better resolution for identifying closely spaced events, while longer pulse widths provide a greater dynamic range for testing longer fiber links.
• Utilize the included Curve Analyze Software on your PC to perform in-depth analysis of saved traces, generate reports, and manage your measurement data efficiently.

10. Warranty and Support

10.1 Warranty Information

The Komshine QX45 OTDR comes with a 12-month warranty period from the date of purchase. For distributors, a 2-year warranty is provided. This warranty covers defects in materials and workmanship under normal use. It does not cover damage caused by misuse, accidents, unauthorized modifications, or improper maintenance.

10.2 Technical Support

For technical assistance, troubleshooting beyond the scope of this manual, or warranty claims, please contact your local Komshine distributor or the official Komshine support channels. Have your product model and serial number ready when contacting support.