1. Introduction
This instruction manual provides essential information for the safe and effective use of your Onerbl 3-Pin DIN 24V AC Adapter. This adapter is designed as a replacement power supply for various devices, including specific Epson and Munbyn printer models. Please read this manual thoroughly before use and retain it for future reference.
2. Safety Information
To ensure safe operation and prevent damage, observe the following precautions:
- Use the adapter only with devices that require a 24V DC power input and a compatible 3-Pin DIN connector.
- Do not expose the adapter to water, moisture, or extreme temperatures.
- Avoid dropping or subjecting the adapter to severe impact.
- Do not attempt to open or modify the adapter. There are no user-serviceable parts inside.
- Ensure the power outlet is easily accessible and properly grounded.
- Unplug the adapter from the power outlet when not in use for extended periods.
- Keep the adapter away from children.
3. Package Contents
Verify that all items are present in the package:
- Onerbl 3-Pin DIN 24V AC Adapter Unit
- AC Power Cord (for connecting to wall outlet)

Image: The Onerbl 3-Pin DIN 24V AC Adapter unit (black rectangular box) shown alongside its detachable AC power cord, which features a standard US 2-prong plug on one end and a C7 connector for the adapter on the other.
4. Setup
Follow these steps to connect the AC adapter to your device:
- Identify the Device's Power Port: Locate the 3-Pin DIN power input port on your compatible device (e.g., Epson TM-T88III, Munbyn ITPP047 printer).
- Connect the Adapter to the Device: Carefully insert the 3-Pin DIN connector from the Onerbl AC adapter into the device's power port. Ensure a secure fit.
- Connect the AC Power Cord: Plug the C7 end of the AC power cord into the input receptacle on the Onerbl AC adapter unit.
- Connect to Power Outlet: Insert the 2-prong plug of the AC power cord into a standard electrical wall outlet (AC 100-240V, 50/60Hz).
- Verify Connection: Confirm all connections are firm before powering on your device.
5. Operating Instructions
Once the adapter is correctly set up:
- The adapter will supply 24V DC power to your connected device.
- Power on your device as per its own instruction manual.
- The adapter is designed for continuous operation within its specified voltage and current limits.
6. Maintenance
Proper maintenance ensures the longevity of your adapter:
- Cleaning: Disconnect the adapter from both the power outlet and the device before cleaning. Use a soft, dry cloth to wipe the exterior. Do not use liquid cleaners or solvents.
- Storage: When not in use, store the adapter in a cool, dry place, away from direct sunlight and extreme temperatures. Avoid tightly coiling the cables to prevent damage.
- Inspection: Periodically inspect the adapter and cables for any signs of damage, such as frayed wires, cracks, or bent pins. If damage is found, discontinue use and replace the adapter.
7. Troubleshooting
If you encounter issues with your adapter, refer to the following common solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| Device not powering on/charging. |
|
|
| Adapter feels excessively hot. |
|
|
If troubleshooting steps do not resolve the issue, contact customer support.
8. Specifications
- Input: AC 100-240V, 50/60Hz (Worldwide AC Input)
- Output: 24V DC (Specific current output not provided, but implied by compatibility)
- Connector Type: 3-Pin DIN
- Cable Length: Approximately 10 feet (3 meters) extra long cord
- Protection Features: Over Voltage Protection, Over Heat Protection
- Compatible Devices: Epson TM-T88III, C825343, M115A, Tm220B; Munbyn ITPP047, ITPP047USE-WH, ITPP066, ITPP067, ITPP068, ITPP080, ITPP085, ITPP092, ITPP094 Printer models.
9. Warranty and Support
This product is manufactured by Shenzhen Waweis Technology Co., Ltd. For warranty information or technical support, please refer to the documentation provided with your purchase or contact your retailer. Specific warranty terms may vary by region and retailer.





