SKYSHL SS303T-2A1 Optical Time Domain Reflectometer User Manual

1. Introduction

The SKYSHL SS303T-2A1 is a versatile Optical Time Domain Reflectometer (OTDR) designed for comprehensive fiber optic network testing. This compact device integrates multiple functions including OTDR, Optical Power Meter (OPM), Optical Light Source (OLS), Visual Fault Locator (VFL), Optical Loss Test (OFLT), and RJ45 Cable Tracker. It is ideal for characterizing point-to-point access and metro fiber networks, as well as qualifying and troubleshooting FTTH/PON networks, singlemode FTTA/DAS front haul, and various other fiber optic measurements.

Figure 1: SKYSHL SS303T-2A1 OTDR Device Overview

2. Safety Information

Please read and understand all safety instructions before operating the device. Failure to follow these instructions may result in injury or damage to the device.

• Optical Safety: Never look directly into the optical output ports when the device is powered on, as laser radiation can cause severe eye damage.
• Electrical Safety: Use only the provided charger and USB cable. Do not operate the device in wet conditions or with damaged cables.
• Battery Safety: Do not disassemble, puncture, or expose the battery to extreme temperatures. Dispose of batteries according to local regulations.
• General Handling: Handle the device with care. Avoid dropping or subjecting it to strong impacts. Keep the device and accessories out of reach of children.

3. Package Contents

Carefully unpack the box and verify that all items listed below are present and in good condition. If any item is missing or damaged, please contact your vendor.

• 1 x SKYSHL SS303T-2A1 OTDR Unit
• 1 x SC&FC/UPC Connector for OTDR Port
• 2 x 2.5mm Universal Connectors for OPM & VFL Ports
• 1 x FC-LC UPC Adapter
• 1 x User Manual
• 1 x USB Cable
• 1 x AC/DC Charger (AC100V~240V; DC: 5V(2A))
• 1 x Alcohol Cleaning Cloth
• 1 x Oxford Backpack
• 1 x Calibration Report
• 1 x RJ45 Cable Locator

Figure 2: Included Accessories

4. Specifications

5. Setup

5.1 Initial Inspection

Before first use, ensure all components listed in Section 3 are present and undamaged. Familiarize yourself with the device's layout and ports.

5.2 Charging the Battery

The device is powered by a 3.7V/4000mAh lithium battery. For optimal performance, fully charge the device before its first use. Connect the provided AC/DC charger to the Micro USB port on the device and plug it into a power outlet. The charging indicator on the screen will show the charging status. A full charge typically provides 11-15 hours of continuous operation.

5.3 Connecting Adapters

The SS303T-2A1 supports various fiber optic connectors. Use the appropriate adapter for your testing needs:

• For OTDR measurements, use the SC&FC/UPC connector provided.
• For OPM and VFL functions, use the 2.5mm universal connectors.
• An FC-LC UPC adapter is included for compatibility with LC connectors.

Ensure all connections are clean and secure to prevent inaccurate readings and damage to the fiber or device ports. Use the alcohol cleaning cloth to clean connector end-faces before connection.

6. Operating Instructions

Figure 3: Main Function Interface

6.1 Power On/Off

• To power on, press and hold the power button (usually located at the bottom center of the control panel) until the screen illuminates.
• To power off, press and hold the power button again until the device shuts down.

6.2 Navigation

The device features a 3.5-inch HD TFT color screen and a control panel with directional buttons (up, down, left, right), an OK button, and function keys (F1-F4) for navigating menus and selecting options.

6.3 OTDR Test

The SS303T-2A1 offers both Automatic and Manual OTDR test modes.

• Automatic OTDR: This mode simplifies testing by automatically recognizing the link, setting optimal parameters, and performing acquisitions and analyses across multiple wavelengths. It consolidates results for each link section and network element, providing immediate, accurate information. This mode is ideal for untrained technicians.
• Manual OTDR: For experienced users or specific testing scenarios, manual mode allows you to set parameters such as wavelength, test range, pulse width, and test time. This provides greater control over the test process to meet specific requirements.

Figure 4: OTDR Test Event Types and Curve

6.4 Event Map/Graphics Analysis Mode

The Event Map function simplifies the interpretation of OTDR test results. It graphically represents the network topology, dynamically locating and identifying all network components and fault locations with maximum resolution. This feature provides an intuitive visual aid for fiber optic test engineers.

Figure 5: Event Map Graphical Analysis

6.5 Optical Power Meter (OPM)

Select the OPM function from the main menu. Connect the fiber to be measured to the OPM port using the 2.5mm universal connector. The device will display the optical power in dBm or mW within the 800nm-1700nm range.

6.6 Optical Light Source (OLS)

Select the OLS function. Connect the fiber to the OLS port. The device can emit light at 1310nm and 1550nm wavelengths with various modulation frequencies (CW, 270Hz, 330Hz, 1kHz, 2kHz) for continuity testing or loss measurement when paired with an OPM.

6.7 Visual Fault Locator (VFL)

Activate the VFL function. Connect the fiber to the VFL port. The VFL emits a visible red laser (650nm) up to 10km, allowing for quick visual identification of breaks, bends, or poor connections in fiber optic cables. The VFL can operate in continuous wave (CW) or pulsed (1Hz, 2Hz) modes.

6.8 Optical Loss Test (OFLT)

This function allows for measuring optical loss at 1310nm and 1550nm. Refer to the on-screen instructions or the detailed user manual for specific steps on performing loss tests.

6.9 RJ45 Cable Tracker

The integrated RJ45 Cable Tracker can test cable continuity and identify wiring faults for RJ45 Ethernet cables over distances greater than 300m. Connect one end of the RJ45 cable to the device's RJ45 port and the other end to the remote locator unit.

6.10 Data Storage

The device can store up to 800,000 groups of curve data. Test results can be saved in SOR format. Use the Micro USB port or TF Micro SD card slot to transfer data to a computer for further analysis and reporting.

Figure 6: Detailed Test Results Display

7. Maintenance

7.1 Cleaning

• Device Exterior: Use a soft, dry cloth to clean the exterior of the device. Do not use abrasive cleaners or solvents.
• Optical Ports and Connectors: Always keep optical ports and connector end-faces clean. Use the provided alcohol cleaning cloth or specialized fiber optic cleaning tools. Contaminated connectors can lead to inaccurate measurements and damage to the device.
• Screen: Use a soft, lint-free cloth, slightly dampened with water or a screen cleaner, to clean the display.

7.2 Battery Care

• To prolong battery life, avoid fully discharging the battery frequently.
• If the device will not be used for an extended period, charge it to approximately 50% before storage and recharge every few months.
• Store the device in a cool, dry place.

7.3 Storage

When not in use, store the SS303T-2A1 in its Oxford backpack or a protective case to prevent dust, moisture, and physical damage. Keep all optical ports covered with their protective caps.

8. Troubleshooting

• Device does not power on: Ensure the battery is charged. Connect the charger and try again.
• Inaccurate measurements: Check all fiber optic connections for cleanliness and proper seating. Ensure the correct adapter is used for the test. Verify that the device settings (e.g., wavelength, pulse width) are appropriate for the fiber being tested.
• VFL light is dim or not visible: Check the VFL port for obstructions or damage. Ensure the VFL function is activated.
• RJ45 Cable Tracker not working: Ensure both ends of the cable are properly connected to the main unit and the remote locator. Check the cable for visible damage.
• Screen unresponsive: Try restarting the device. If the issue persists, contact support.

9. User Tips

• For quick and easy testing, especially if you are new to OTDRs, utilize the Automatic OTDR mode. It intelligently sets parameters and analyzes results.
• When precise fault location or detailed analysis is required, switch to Manual OTDR mode to fine-tune parameters like pulse width and test range.
• Always use the Event Map/Graphics Analysis Mode to visually interpret complex fiber traces and quickly pinpoint issues like splices, connectors, or breaks.
• Regularly clean all fiber optic connectors and ports using the provided alcohol cleaning cloth to ensure accurate and reliable measurements.
• Keep the battery charged, especially before fieldwork, as the device offers a long operational time of 11-15 hours on a single charge.

10. Certification

This product is CE certified, indicating compliance with health, safety, and environmental protection standards for products sold within the European Economic Area (EEA).

11. Warranty and Support

For warranty information, technical support, or service inquiries, please refer to the contact information provided with your purchase documentation or contact the seller directly. Keep your proof of purchase for warranty claims.