> For the complete documentation index, see [llms.txt](https://prosbcdocs.telcobridges.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://prosbcdocs.telcobridges.com/telecom-references/other-pages/power-supply.md).

# Power Supply

### Redundant Power Supplies

The redundant power supplies is standard for all [Tmedia](https://telcobridges.com/media-gateways/products/tmedia-gateways/) products (optional for [TMG800](https://telcobridges.com/media-gateways/products/tmedia-gateways/tmg800/)).

This allows the unit to keep running even if the one of them breaks.

It is also worth mentioning that the dual power supplies are [hot-swappable](https://github.com/telcobridges-main/tmedia-wiki/tree/main/tmedia/operations/hot-swap/README.md). Therefore, a defective power supply can be replaced without shutting down the system.

### Redundant Power Source

TelcoBridges recommends to connect the [Tmedia](https://telcobridges.com/media-gateways/products/tmedia-gateways/) system to 2 independent power sources. This recommendation extends to the system peripheral components like the network switches, for example.

#### Recommended Setup

Here is the schematic of a system with 2 power entry points:

![Power Distribution Recommended Setup](https://docs.telcobridges.com/w/images/6/6a/Ha_Power_Entry_Setup.png)

Even if the primary power source fails, the system can still operate, like shown in the following picture.

![Power Distribution Recommended Setup with Primary Source Failure](https://docs.telcobridges.com/w/images/2/29/Ha_Power_Entry_Fail.png)


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