The 2.1mm Barrel Connector with Screw Terminals is designed to facilitate secure and straightforward power connections for devices like the JACE controller and IP relay modules. This connector features a 2.1mm inner diameter and 5.5mm outer diameter barrel jack, commonly used in low-voltage DC power applications. The integrated screw terminals allow for easy attachment of power supply wires without the need for soldering, ensuring a reliable connection. This design is particularly beneficial when connecting devices to DIN rail-mounted power supplies, as it simplifies the wiring process and enhances connection stability.