The Rx7i PACsystem IC698RMX016 module is a GE Fanuc manufactured communication module. It is a redundancy memory Xchange module or RMS module. It solely operates as a node on the reflective memory of the link between the RX7i system and the CPU. It has an operating voltage rating of 5 Volts DC and has a current rating of 1.8 Amps. It comes with a 16 MB SDRAM for the user memory. It is compact in size with dimensions of 6.299 inches in width and 9.187 inches in height. The module uses up to 256 nodes per network. The IC698RMX016 communication module uses dynamic packet sizes ranging from 4 to 64 bytes that are controlled by using the Xchange module.

The IC698RMX016 communication module uses a high speed fiber optic network for data exchange. The front section of the module comes with 8 different LED indicators and with a toggle switch that can be used to authorize a role switch. The role switch is used to changes roles for the module and it helps to prevent accidental activation. It has 2 on and off positions. It has a spring loading mechanism that is in the off state by default. The IC698RMX016 module requires a PacSystem with firmware version 2.00 for installation. It uses the logic developer PC software for programming. The connector of the communication module is manufactured by using zirconium ceramic ferrule and it has an insertion loss of 0.35 dB maximum. It has a return loss of -30 dB. An optical transceiver is present in the module and it has 2 LC optic ports. There is a TX port for a transmitter and an RX port for a receiver.