Скачать или смотреть How To Make DIY Ups For Wi-Fi Router & ONU

Creating a DIY Uninterruptible Power Supply (UPS) for a Wi-Fi router and Optical Network Unit (ONU) can ensure uninterrupted internet connectivity during power outages. Here’s a step-by-step guide to making one:

Materials Needed
1. *12V Battery* (sealed lead-acid or LiFePO4 recommended)
2. *12V DC-DC Converter* (adjustable output voltage)
3. *Battery Charger* (compatible with your battery type)
4. *Diodes* (to prevent current backflow)
5. *Connectors and Wires*
6. *Fuse* (for protection)
7. *Enclosure* (optional, for safety)

Tools Needed
Soldering iron and solder
Wire cutters/strippers
Multimeter (for testing)
Screwdriver (for enclosure)

Steps

1. *Select the Battery:*
Choose a battery with sufficient capacity for your needs. A 12V 7Ah battery can typically power a router and ONU for several hours.

2. *Connect the Battery to the DC-DC Converter:*
Connect the battery's positive terminal to the DC-DC converter’s input positive terminal.
Connect the battery's negative terminal to the DC-DC converter’s input negative terminal.

3. *Adjust the DC-DC Converter:*
Use a multimeter to set the output voltage of the DC-DC converter to match the voltage required by your router and ONU (commonly 9V or 12V).

4. *Set Up the Battery Charger:*
Connect the battery charger to the battery terminals.
Ensure the charger is suitable for your battery type and connect it to the AC mains to keep the battery charged.

5. *Incorporate Diodes:*
Install a diode between the charger and battery to prevent discharge back into the charger.
Install another diode between the battery and DC-DC converter to prevent current backflow into the battery from the devices.

6. *Install a Fuse:*
Add a fuse in the positive line between the battery and DC-DC converter for short circuit protection.

7. *Connect the Router and ONU:*
Use appropriate connectors to attach the DC-DC converter output to the power inputs of your router and ONU.
Double-check the polarity to avoid damaging the devices.

8. *Testing:*
Before connecting your devices, verify the output voltage with a multimeter.
Connect your router and ONU, and then test the setup by disconnecting AC power. The devices should continue running on battery power.

9. *Enclosure (Optional):*
Place the setup in an enclosure for safety and neatness. Ensure proper ventilation for the battery and electronics.

Safety Tips
Handle batteries carefully as they store significant energy.
Insulate all connections properly to prevent short circuits.
Regularly check the battery’s health and replace it when its capacity diminishes.

By following these steps, you can create a reliable DIY UPS for your Wi-Fi router and ONU, ensuring continuous internet connectivity during power outages.
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