UPS: protecting your network, NAS and alarm from power cuts
A momentary power cut can reboot the router, stop the cameras or damage a NAS. A UPS prevents it at very little cost.
What it is
A UPS (uninterruptible power supply) is a battery unit that keeps equipment running during a power cut and protects it from surges and dips.
What to connect
- Router, firewall and switches (especially PoE switches powering cameras and WiFi).
- NAS and servers.
- Camera recorder.
- POS and IP phones in businesses.
Types
- Line-interactive: good value for network and small equipment.
- Online (double conversion): maximum protection for critical equipment.
Sizing
Add up the equipment's power draw and decide how much runtime you want: a few minutes to ride through blips, or longer to keep cameras and connectivity going through a long outage.
Clean shutdown
A network-connected UPS can tell the NAS to shut down properly before the battery runs out.
Maintenance
Batteries have a limited life and need checking and replacing periodically.
Frequently asked questions
Does the alarm need a UPS?
Professional alarms already have a battery. The UPS keeps the network and cameras running.
Connect · Protect · Automate · Control
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