Introduction to the outside physical interfaces of the EZR33L outdoor 4G router.
EZR33L 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 antennas sockets are on the bottom side.
[1~6] are the embossed numbers on the enclosure.  on the top side is for spare uses.
EZR33L 4G Router - Outer Physical Interfaces
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.