> For the complete documentation index, see [llms.txt](https://indoor.router.works/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://indoor.router.works/ezr23/installation.md).

# Installation

- [Install Antennas](https://indoor.router.works/ezr23/installation/install-antennas.md): Choose a stronger signal reception location for the indoor 4G router.
- [Insert SIM Card](https://indoor.router.works/ezr23/installation/insert-sim-card.md): The indoor 4G router requires to insert at least one SIM card to connect to the mobile internet networks.
- [Power Supplies](https://indoor.router.works/ezr23/installation/power-supplies.md): The indoor 4G router can use the default 12 Volt DC power adapter and also work on wide-range DC power sources and even 48 Volt PoE power.