1. Introduction
This manual provides essential information for the safe and effective operation of the EXFO MAX-720C Optical Time Domain Reflectometer (OTDR). The MAX-720C is a compact, lightweight, and rugged modular platform designed for the installation and maintenance of optical networks, specifically featuring a 1310/1550nm SM module with 37/35dB dynamic range.
Its high-resolution color display and robust design ensure reliable performance in challenging environments. The device supports various applications including Optical Fault Location, Optical Channel Analysis, and Automated Ethernet Testing.
2. Product Overview
The EXFO MAX-720C is equipped with a 7-inch touchscreen display and two USB 2.0 ports for connectivity. Its modular design allows for various testing applications.
Figure 2.1: The EXFO MAX-720C OTDR unit, shown within its protective carrying case, alongside its power adapter. The screen displays an activation prompt for the iOLM Link Mapper application.
Figure 2.2: Front view of the EXFO MAX-720C OTDR, displaying the touchscreen with a protective film still applied. The device features a home button and power button below the screen.
Figure 2.3: A closer front view of the EXFO MAX-720C OTDR, highlighting the screen and control buttons. The protective film on the screen is visible, indicating a new or unused state.
3. Setup
- Unpacking: Carefully remove the MAX-720C unit and all accessories from the packaging. Verify all components are present according to the packing list.
- Charging the Battery: Connect the provided power adapter to the device and a suitable power outlet. Allow the battery to fully charge before initial use. The charging indicator light will provide status.
- Powering On: Press and hold the power button located below the screen until the EXFO logo appears.
- Module Installation: If applicable, ensure the MAX-720C-SM1 OTDR module is securely installed in its designated slot. Refer to the module-specific guide for detailed installation instructions.
- Initial Configuration: Follow the on-screen prompts to set language, date, time, and other initial system settings.
4. Operating the Device
The MAX-720C features an intuitive touchscreen interface for navigation and operation. Key functionalities include:
- OTDR Testing: Access the OTDR application from the main menu. Select the appropriate test parameters (wavelength, pulse width, range) for your fiber network.
- iOLM Link Mapper: Activate the Intelligent Optical Link Mapper (iOLM) for automated multipulse width OTDR analysis. This feature simplifies complex trace analysis into an intuitive link view.
- Optical Fault Locator: Utilize this specialized solution for quick identification of faults in short fiber segments, such as FTTx drop cables, MDUs, COs, and wireless premises.
- Optical Channel Analyzer: A dedicated tool for the installation and maintenance of CWDM networks, providing insights into channel performance.
- Automated Ethernet Tester: For 10/100/1000MB Ethernet networks, this compact tool assists in installation and optimization.
- Data Management: Use the USB ports to transfer test results and reports to external storage devices or a computer.
For detailed instructions on specific test procedures and application usage, refer to the on-device help system or the comprehensive software manual.
5. Maintenance
Proper maintenance ensures the longevity and accuracy of your EXFO MAX-720C OTDR.
- Cleaning: Use a soft, lint-free cloth to clean the touchscreen and device exterior. For stubborn marks, a slightly damp cloth with mild, non-abrasive cleaner can be used. Avoid excessive moisture.
- Connector Care: Always keep optical connectors clean. Use appropriate fiber optic cleaning tools and procedures to prevent contamination, which can significantly impact measurement accuracy.
- Storage: When not in use, store the device in its protective carrying case in a cool, dry environment, away from direct sunlight and extreme temperatures.
- Battery Care: To maintain battery health, avoid fully discharging the battery frequently. If storing for extended periods, ensure the battery is charged to approximately 50%.
6. Troubleshooting
This section provides solutions to common issues you might encounter. For more complex problems, contact EXFO technical support.
| Problem | Possible Cause | Solution |
|---|---|---|
| Device does not power on. | Low battery or power adapter issue. | Connect to power adapter and allow to charge. Verify power outlet functionality. |
| Inaccurate test results. | Dirty optical connectors; incorrect test parameters. | Clean all optical connectors thoroughly. Verify selected test parameters match the fiber type and length. |
| Touchscreen unresponsive. | Temporary software glitch. | Perform a soft reset by holding the power button until the device restarts. If issue persists, contact support. |
7. Specifications
| Feature | Detail |
|---|---|
| Model Number | MAX-720C |
| OTDR Module | MAX-720C-SM1 (1310/1550nm) |
| Dynamic Range | 37/35 dB |
| Display | 7-inch (178 mm) TFT color touchscreen, 800 x 480 resolution |
| Connectivity | Two USB 2.0 ports |
| Dimensions (L x W x H) | 19.29 x 11.42 x 15.35 inches |
| Weight | Approximately 12 Pounds (Note: Unit itself is less than 800g/2 lbs; 12 lbs likely includes packaging/accessories) |
| Ruggedness | Sealed design for challenging environments |
8. Warranty and Support
EXFO products are designed for durability and performance. For information regarding product warranty, technical support, or service, please refer to the official EXFO website or contact your authorized EXFO distributor. Ensure you have your product model number (MAX-720C) and serial number ready when contacting support.
Online Resources: For the latest documentation, software updates, and FAQs, visit www.exfo.com.
