Protecting your Synology NAS with a UPS (Uninterruptible Power Supply) is critical to preventing data loss and corruption during power outages. In this guide, we’ll walk through connecting, configuring, and verifying a CyberPower CP1000AVRLCD UPS with a Synology NAS such as the DS1019+, ensuring safe shutdowns and better power management.

In this blog post, we will cover the physical setup, DSM configuration, verification methods, and best practices to keep your NAS protected.

• Equipment Used
• Step 1: Physical Connections
• Step 2: Verify DSM Detects the UPS
• Step 3: CLI Verification (Optional)
• Step 4: Enable UPS Support
• Notes and Best Practices
• Additional Tips
• Example Layout
• Alerts & Monitoring
• Without the USB Cable
• Conclusion

Equipment Used

• UPS: CyberPower CP1000AVRLCD
• NAS: Synology DS1019+ or DS1522+ (DSM 7.2.2+)
• Connection Type: USB (data cable, not just power)

Step 1: Physical Connections

1. Power on your NAS using the battery-protected outlets on the UPS.
2. Connect the USB data cable from the USB port on the UPS to the rear USB port on the Synology NAS.
   • Avoid USB hubs or extenders for best reliability.
3. If using an external USB backup drive, connect it to the front USB port of the Synology NAS.

Step 2: Verify DSM Detects the UPS

1. Log into DSM.
2. Go to: Control Panel → Hardware & Power → UPS

3. If connected properly, you should see:

   “USB UPS detected on Local UPS device”

If it still says “UPS is not connected”, reseat the cable or try another USB port/cable.

Step 3: CLI Verification (Optional)

You can also verify UPS detection via SSH. Run:

**lsusb**  

Look for a line identifying your UPS.

Step 4: Enable UPS Support

Once detected, configure DSM:

1. Check “Enable UPS support”
2. Set standby/shutdown behavior (e.g., standby after 15 minutes on battery, then shut down)
3. (Optional) Enable “UPS server” to share UPS signals with other Synology devices on the network
4. Under General, enable: “Restart automatically when power supply issue is fixed”

Notes and Best Practices

• Using only UPS power means the NAS will stay on battery but DSM won’t know when to shut down.
• Using both USB data + power enables DSM to monitor and gracefully shut down during outages.
• Only one USB port is required for UPS connection. Reserve the other for backup drives.

Additional Tips

• Keep UPS firmware updated via PC if possible.
• Test UPS behavior with simulated outages occasionally.
• Schedule regular USB backups in DSM via Hyper Backup.

Example Layout

Device	Port Used
UPS Power	NAS Power Plug
UPS USB Data	NAS Rear USB Port
USB Backup HD	NAS Front USB Port

Alerts & Monitoring

Configure DSM notifications for UPS status changes:

Control Panel → Notification

Set up email or push alerts to stay informed.

Without the USB Cable

Without the USB data connection:

• DSM cannot detect the UPS
• No graceful shutdowns — leading to risk of data corruption

Conclusion

To fully integrate your UPS with a Synology NAS, always use both the power connection and the USB data cable. This ensures DSM can monitor, log, and gracefully shut down your NAS during power events — protecting both your data and your hardware investment.

📝 For more information about this Synology UPS configurations, please review this Synology Products Compatibility List.