https://www.systerra.de/COM16155RER.html
The COM16155ER combines a wireless quad-band modem unit and a low power GPS receiver on one PC/104 module. This board provides a direct and reliable GSM connection to stationary or GPRS mobile fields around the world...
2020 Product Guide (PDF)
https://www.systerra.de/downloads.php?dokument=9824
zugehörige Webseite: 2020 Product Catalog Hersteller: RTD
COM16155RER Datasheet (PDF)
https://www.systerra.de/downloads.php?dokument=6737