Remote Technologies Incorporated (RTI) ships its line of expansion modules for its XP series control systems including the RCM-4 relay control module, the ESC-2 serial control module and the PCM-4 I/O (four MPIO ports and 12-VDC voltage trigger output) port control module.
When used with RTI accessory devices, each MPIO port can provide IR routing capabilities, one-way RS232 communication and power sensing. The ESC-2 allows installers to add two additional bi-directional serial ports and the RCM-4's four relays can be used in a normally open or closed configuration for control over everything from window shades to screen lifts.
Additionally, the PCM-4 and RCM-4 units can be powered by the included power supply or Power over Ethernet (PoE).