Home / MITSUBISHI / Melsec IQ R-series / Base Unit / Extension Base Extension Base Extension base unit used for extending the main base unit, providing further available I/O slots. Download link not available Categories: Base Unit, Melsec IQ R-series, MITSUBISHI Product ID: 2629 Related products Details Analog Control module Options for analog inputs and ou Details Simple motion module Simple motion module supporting Details Network Communication module RS-232, RS-485, RS-422 communica