The CLXT Modules are available in three versions for Ethernet, Serial Communications, and Profibus Master/Slave applications

The CLXT Modules are designed for use with Rockwell ControlLogix XT PLCs in harsh and corrosive industrial environments. The CLXT Modules are available in three versions: the SST-ESR2-CLXT Module for Ethernet and Serial Connections, the SST-ER4-CLXT Serial Communication Module with four Modbus serial ports and the SST-PB3-CLXT-RLL for Profibus Master/Slave applications. All versions feature wider temperature ranges, conformal-coated boards and harsh-duty components.
Molex