SENSOPER MC-EX-QA8 Transistor Output module is an expansion module that can be used with MC-CPU-CM4-Gx CPU module. This module was implemented for send Digital output signals. This expansion module include high speed 1.7 Mhz I2C interface with I2C address configurable DIP switches for establish communication with a CPU module. MCP23008 I2C port expanding IC supports up to eight outputs in this module. All outputs were internal optically isolated as protection feature. The module expansion is supported by board-to-board connector with 40 pins.