ETM9440-1 – Industrial 3G Serial Modem for M2M applications

Industrial 3G Serial Modem

ETM9440-1 Industrial 3G Serial Modem for M2M applications

The ETM9440-1 is an industrial 3G serial modem designed for demanding M2M applications such as automatic meter reading, SMS messaging, or a communications link for data loggers and associated monitoring equipment.


The unit is fitted with a DB9 RS232 serial port, a 6-pin RJ12 input for power and a USB-B connection that can also be used for serial communications. Power input can be 6 to 35VDC. Antenna connector is FME M via a 110mm (approx.) cable extending from the unit.

Frequency Bands – Penta-Band 3G

The ETM9440-1 supports 5 frequency bands for 3G/UMTS / HSPA+ and 4 frequency bands for 2G/GPRS making it suitable for use across Australia and around the world.

Wide Operating Temperature Range

Internally the ETM9440-1 Industrial 3G Serial Modem is fitted with the Cinteron PH8-P Cellular Wireless module from Gemalto, the PH8-P is an industrial grade module making the product suitable for operation from -30 to 70°C.


The ETM9440-1 can be used to send SMS messages, from a server or PLC, by using the units AT interface in either Text or PDU mode, Tesxt mode being most common.


TCP/IP stack access is via AT commands


The unit support CSD (Circuit Switched Data) commonly used for remote access to legacy equipment.



Enquire about this product

Sales & Technical Support

We provide project & quantity pricing


  • Industrial 3G Serial Modem
  • DB9 RS232 Serial Port
  • Penta-band 3G
  • Low Power 6-35VDC Power Input

Typical applications:

  • Automatic Meter Reading
  • SMS Messaging
  • Remote Access to Data Loggers or PLC's


Stub Antenna for Digi WR11 Router

ETM Antenna Options

ETM Pacific Stocks a range of cellular and RF M2M antennas as well as extension cables and RF adaptors. For complete listing...

Power Supplies for ETM Modems

ETM9140 and ETM9440 modems have an RJ12 power connection as standard, ETM Purple2 4G AUS modems have a single combined RJ45 power...

Cables for ETM Modems

ETM Pacific stocks a range of interface, power and IO cables for use with ETM9140, ETM9440 and ETM Purple2 4G AUS modems.