> For the complete documentation index, see [llms.txt](https://ezr33t.router.works/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ezr33t.router.works/hardware/physical-interfaces.md).

# Physical Interfaces

EZR33T router has 5x antenna sockets, 1x gland socket, 1x breather valve, and 1x lock hole. 

All of the antenna sockets are N-female type. 4G antenna sockets are on the top side, and Wi-Fi antenna sockets are on the bottom.

***\[1\~6]** are the embossed numbers on the enclosure. \[2] on the top side is for spare uses.*

<figure><img src="https://1340417500-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LvFoPQjE_9d9UfSmbIn%2F-MeT063y3yUQTxo1mss2%2F-MeT2dcxmy272VClN4oD%2FEZR33L-4G-Router-Outer-Interfaces_External-Antenna.jpg?alt=media&#x26;token=f05d34aa-da77-4c34-91da-c4d085c7569a" alt=""><figcaption></figcaption></figure>

There are two types of ends on the T-shape wrench. The hexagon end fits the hexagon bolts on the lid. The cross end is fit to cross-headed screws on the backside. Use one of the Hexagon ends on the wrench and turn in an anti-clockwise direction to lose the bolts on the lid. Then, we can open the enclosure.