Cellular modem


The Gateway in its basic configuration is equipped with an LTE modem that also supports GPRS and SMS functions. Different modems were used depending on the model variant. Here is a table of models. 

SIM card

The Gateway supports two nano SIM cards, both 1.8V and 3V. The card connector is tray type. When installing the SIM card, pay attention to the correct insertion of the card. The used SIM card tray is designed so that the card sticks to the tray. This make easily insert the SIM regardless of the position of the Gateway

Using Cellular Network

To activate the LTE modem, go to Network > Interfaces and select the lte tab there.

AG-1621 cellular modem interface

Mostly the network operator requires you to enter the APN, sometimes it also requires a username and password. Enter the required data and save.

Then go to System > Custom Commands and click on Start modem.

AG-1621 custom modem command

The modem will start up and connect to the Internet. To check if it is working properly and what the signal is, go to Status > Mobile Service.

Cellular modem  ON on start

To make the gateway automatically connect to the Internet after startup, you need to add a modem startup in the System > Startup section under Local Startup, add a line /usr/commands/start_modem.sh. Then save the changes. After each reboot, the gateway will automatically start the modem.

Generally, the Gateway supports all versions of Quectel MiniPCI express modems. However, you can use a third-party modem, as long as the signal outputs are compatible with those of the Quectel company. For use your won LTE module select model without LTE module installed. You also need to pay attention to the power supply to the LTE module should be 3.3V.

MiniPCI express pinout

Below is the description of the PCI express pinout used in the AG-702. Before installing anything other than the EC-200U, be sure to check the pinout for compatibility. The LTE model is connected via a USB data bus.