AM-201

AM-201 is LTE modem for use in industrial environment. It communicate to host by USB, RS485 and RS23. It can be used with operating systems such as Windows and Linux. For use in IoT systems, industrial control systems, control panels and distribution systems, public display controllers, remote monitoring for agriculture, industry and IoT.

General information

Download technical specification Technical Specification

Model selection

Different modem models are available depending on the periphery availability and type.

Model
Cellular Network

GPRS 3G LTE 4G GNSS
AM-201-IN
AM-201-GL

Hardware

The Gateway is made on one PCB, which is fitted to the aluminum housing. The housing is made of a thick, strong aluminum profile with two end plates also made from aluminum. The surface of the housing is finished by anodizing. 

At the bottom of the housing there are slots through which DIN rail clamp or any other clamp can be mounted by t-nuts.

Front view dimensions

AM-201-dimensions-top.png

Side view dimensions

AM-201-dimensions-B.png

Interfaces

Top connector and indicators

AM-201-connectors-A.png

Bottom connector

AM-201-connectors-B.png


Configuration manual

First start

After unpacking, the modem is ready to use. The modem can be connected to the target system using one of the following interfaces.

Only one interface can be used at a time. The modem requires power supply, and even with a USB connection, a power supply is necessary. It is not powered from the USB port.


Power supply

The device can be powered by connecting a power source to the terminal block:  

Note that the device does not have an on/off switch. It automatically turns on when it receives power. It takes a couple of seconds for the system to boot up. Once the system is ready, the RED LED will light up. 

Power terminal block pin assignments are shown below:

AM-201-power connector.png


Inserting SIM card

Please refer drawing for proper SIM placement.

AM-201-sim.png

If by mistake you insert the card backwards then the card will be able to insert, but the modem will not work properly.


Connecting a modem via USB

To connect the modem via USB, it is necessary to connect with a USB A > B cable. This type of cable is often called a "printer cable". In addition to USB, it is necessary to connect a power supply in the range of 8-36V DC . 
Connect according to the following diagram.

AM-201-connecting-via-USB.png


Connect in Windows operating system

To connect the modem via USB on Windows operating system, it is necessary to install the modem drivers. You can download the modem drivers at the bottom of this page. After successful installation, create a new Dialup connection.

Download: Windows_USB_Driver_V2.2.2.zip


Connecting modem via serial interface

he AM-201 can be used with either an RS485 or RS232 serial interface. To control the modem it is necessary to use AT commands. Regardless of the type of serial interface, the commands are the same.

Connecting a modem via RS485

To connect the modem to the device via RS485 serial interface, connect according to the following diagram. 

AM-201-connecting-via RS485.png

Always connect the modem's A signal to the host's A signal, and the modem's B signal to the host's B signal. Most of the time it is not necessary to connect the common ground, or G, signal, but it is good practice to connect it.

Connecting a modem via RS232

To connect the modem to the device via RS232 serial interface, connect according to the following diagram. 

AM-201-connecting-via-RS232.png

Remember that the modem's RX signal is combined with the host's TX signal, and the modem's TX signal is combined with the host's RX signal. That is, the signals are crossed. It is also necessary to connect common ground, or G.


Connect on startup - Windows

In many applications, it is necessary for the modem to start as soon as Windows starts. To do this, follow the steps below:

This instruction applies when using the modem via USB with Windows 10 operating system.

Step-1: Go to Network & Internet:

AM-201-autoconnect-01.png

Step-2: Set Up a New Connection:

AM-201-autoconnect-02.png

AM-201-autoconnect-03.png

Enter the phone number provided by your Internet Service Provider (ISP) into the "Dial-up phone number" field.

AM-201-autoconnect-04.png

AM-201-autoconnect-05.png


In case of a successful connection to the internet you will be presented with the option to browse the internet now.

AM-201-autoconnect-06.png

Step-3: Creating a batch file for auto connect at startup:

AM-201-autoconnect-07.png

Now, Edit the batch file and write below code:

AM-201-autoconnect-08.png

AM-201-autoconnect-09.png

Step-4: Setting the batch file to run automatically

AM-201-autoconnect-10.png

AM-201-autoconnect-11.png


 

 

Safety information

Operating environment

Use in inappropriate conditions may damage the device or shorten its life.


Electrical and power supply safety

Only a person with qualification and appropriate knowledge should install the device.


Malfunctioning and damaged device

Radio frequency exposure

This device has been designed and manufactured not to exceed radio frequency energy emission limits set by regulatory agencies. To comply with RF exposure guidelines, the device must be used at least 20 cm away from a person's body. Failure to follow these instructions may result in exceeding the applicable RF exposure limits. This only applies to models with a built-in LTE modem.


What to do and what not to do