Report CINTERION EHS6T USB in UniStream: Hardware Posted 1 hour ago Hi, You have to buy modems from Unitronics to use with Unitronics PLCs. This will warrant that modem will be compatible with PLCs. Or Unitronics will clearly state what is not supported. CINTERION EHS6T USB, Firmware is 04.013 is a re-designed modem with some major changes in hardware and software. It is not sold by Unitronics and will not work with Unitronics PLCs. It is recommended to return this modem to dealer. Please review newluy introduced by Unitronicvs Router. This Router is a 2G, 3G, 4G, LTE modem-router and supporting many functions. Links: https://www.unitronicsplc.com/support-technical-library/ Scroll to "Accessories", then expand "Routers". There are 2 models with variations for different countries. Hope this information helps. B.R. Alex.