1. Introduction
This manual provides essential instructions for the safe and efficient installation, operation, and maintenance of your TSL DV-AT1210A-D10 18 Port Fused Outputs Power Distribution Box. Please read this manual thoroughly before using the product and retain it for future reference. The TSL DV-AT1210A-D10 is designed to provide regulated 12VDC power distribution to multiple devices, featuring 18 individually fused outputs for enhanced protection.
2. Safety Information
Always observe the following safety precautions to prevent injury and damage to the product or connected equipment:
- Ensure the power distribution box is installed in a dry, well-ventilated area, away from direct sunlight, heat sources, and moisture.
- Do not exceed the maximum total output current of 10 amps.
- Each output is fused at 3.0 amps. Do not bypass or use fuses with higher ratings than specified.
- Only connect devices that operate on 12VDC and do not exceed the 3.0 amp fuse rating per output.
- Disconnect the power distribution box from the AC mains before performing any maintenance or making connections.
- Do not open the casing of the power distribution box. There are no user-serviceable parts inside. Refer all servicing to qualified personnel.
- Ensure proper grounding for all connected equipment.
3. Package Contents
Verify that all items are present in the package:
- TSL DV-AT1210A-D10 Power Distribution Box
- AC Power Cord
- User Manual (this document)
4. Product Overview
The TSL DV-AT1210A-D10 is an 18-port power distribution box designed for security cameras and other 12VDC devices. It features individual fuse protection for each output, an AC power switch, and a power LED indicator.

Front view of the TSL DV-AT1210A-D10 power distribution box, showing the input, output terminals, and indicators.
4.1 Key Features
- 12VDC Output with 10 amp total supply current.
- 18 individually fused protected outputs.
- Each output fuse rated at 3.0 amp.
- 115VAC 60Hz input.
- Integrated AC Power Switch and Power LED indicator.
- Compact dimensions: 10.6" H x 8.0" W x 3.9" D.
5. Setup and Installation
Follow these steps to properly set up your power distribution box:
- Mounting: Choose a suitable location for mounting the power distribution box. Ensure it is a secure, dry, and well-ventilated area. Use appropriate screws and anchors (not included) to mount the box securely to a wall or surface.
- AC Power Connection: Ensure the AC power switch on the unit is in the OFF position. Connect the provided AC power cord to the power distribution box's AC input and then plug it into a standard 115VAC 60Hz wall outlet.
- Device Connections: Connect your 12VDC devices (e.g., security cameras) to the individual output terminals. Each output terminal provides 12VDC and is protected by a 3.0 amp fuse. Ensure the polarity is correct (+ to + and - to -).
- Verify Connections: Double-check all connections to ensure they are secure and correctly wired.
6. Operating Instructions
Operating the TSL DV-AT1210A-D10 is straightforward:
- Power On: Once all devices are connected and verified, flip the AC power switch to the ON position. The Power LED indicator on the unit should illuminate, indicating that the unit is receiving AC power and distributing 12VDC to the outputs.
- Device Operation: Your connected 12VDC devices should now receive power and operate as intended.
- Power Off: To power off the connected devices, simply flip the AC power switch to the OFF position.
7. Maintenance
Regular maintenance ensures optimal performance and longevity of your power distribution box:
- Cleaning: Periodically clean the exterior of the unit with a soft, dry cloth. Do not use liquid cleaners or aerosols. Ensure the unit is powered off and unplugged before cleaning.
- Fuse Replacement: If an output stops providing power, the corresponding fuse may have blown.
- Disconnect the power distribution box from the AC mains.
- Identify the blown fuse (often indicated by a visible break in the wire inside the fuse).
- Carefully remove the blown fuse and replace it with a new 3.0 amp fuse of the same type. Using a fuse with a higher rating can damage the unit or connected devices.
- Reconnect AC power and test the output.
- Ventilation: Ensure that the ventilation openings are not obstructed to prevent overheating.
8. Troubleshooting
Refer to the following table for common issues and their solutions:
| Problem | Possible Cause | Solution |
|---|---|---|
| No power to any output, Power LED is off. | No AC power, AC switch is off. | Check AC power cord connection. Ensure AC power switch is ON. Test the wall outlet. |
| One output has no power, others are working. | Blown fuse for that specific output. | Replace the blown 3.0 amp fuse (refer to Maintenance section). Check the connected device for short circuits. |
| All outputs have low or intermittent power. | Total current draw exceeds 10 amp capacity. | Reduce the number of connected devices or replace high-current devices with lower-current alternatives. |
| Unit feels excessively hot. | Poor ventilation, excessive load. | Ensure proper airflow around the unit. Reduce load if necessary. |
If the problem persists after attempting these solutions, please contact customer support.
9. Specifications
| Model | DV-AT1210A-D10 |
| Input Voltage | 115VAC, 60Hz |
| Output Voltage | 12VDC |
| Total Output Current | 10 Amps |
| Number of Outputs | 18 Fused Outputs |
| Fuse Rating (per output) | 3.0 Amps |
| Dimensions (H x W x D) | 10.6" x 8.0" x 3.9" |
| Weight | 6 Pounds |
| Agency Listings | UL / CUL |
10. Warranty Information
This product is covered by a limited warranty. For specific warranty terms and conditions, please refer to the warranty card included with your purchase or visit the official TSL website. Keep your purchase receipt as proof of purchase for warranty claims.
11. Customer Support
If you have any questions, require technical assistance, or need to report an issue, please contact TSL customer support. Contact details can typically be found on the product packaging or the official TSL website.
Online Support: www.tsl.com/support (Example link, please refer to actual manufacturer's website)