Zyxel LTE7410 Manual De Instrucciones página 4

2. Align and twist the cover clockwise to tighten it into the LTE Device.
Make sure the LTE Device is turned off before you insert your SIM
card. It is recommended to NOT connect the PoE cable before you
do this step. Otherwise, the SIM card may be damaged.
Grounding
1. Use the M4 screw to secure the ground cable to the ground hole on
the LTE Device's rear panel as shown.
2. Attach the other end of the ground cable to a wall or the ground.
4