> For the complete documentation index, see [llms.txt](https://docs.voltmasters.io/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.voltmasters.io/dso-rtu.md).

# DSO RTU

- [Overview](https://docs.voltmasters.io/dso-rtu/telecontrole.md): How grid operators remotely monitor and control your installation through the Voltmasters EMS, and how Voltmasters delivers and certifies that link.
- [How DSO RTU works](https://docs.voltmasters.io/dso-rtu/how-telecontrole-works.md): The end-to-end DSO RTU control model: from the grid operator's control centre to the assets in your installation, and back.
- [RTU connection](https://docs.voltmasters.io/dso-rtu/rtu-connection.md): The network link between the grid operator's RTU and the controller, and what is needed on site to establish it.
- [IO extension](https://docs.voltmasters.io/dso-rtu/io-extension.md): The IO extension device: a Moxa IO module that gives the EMS digital inputs and relay outputs, used for hardware emergency stops and for switching controllable loads.
- [Installing the IO modules](https://docs.voltmasters.io/dso-rtu/io-module-installation.md): Where to place the Moxa IO modules and how to cable them; the number of modules follows the physical layout of the installation.
- [IO module emergency stop](https://docs.voltmasters.io/dso-rtu/io-module-emergency-stop.md): Placing, wiring and configuring a Moxa IO module so a DSO RTU emergency stop is also executed physically, in hardware.
- [Commissioning & certification](https://docs.voltmasters.io/dso-rtu/commissioning-and-certification.md): How Voltmasters validates the DSO RTU link during commissioning and assists remotely during the grid operator's certification (conformity test).
- [Supported grid operators](https://docs.voltmasters.io/dso-rtu/grid-operators.md): The grid operators Voltmasters supports for DSO RTU today, and how new operators are added.
- [Fluvius](https://docs.voltmasters.io/dso-rtu/grid-operators/fluvius.md): Telecontrole with Fluvius over the Netflex interface (IEC 60870-5-104).


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