The MAC00-P4 and MAC00-P5 are expansion modules that provide analog and digital I/O for JVL MAC motors from 400 to 3000. They feature a 4-20mA analog input and output, status outputs, and interfaces for connecting a secondary "slave" motor. The modules also include power supply inputs and outputs, isolated communication interfaces, and connectors for basic I/O, power, communication, and connecting a slave motor.