The Allen-Bradley 1756-DHRIOXT is a robust, dual-port ControlLogix communication module specifically engineered for extended temperature environments. It seamlessly supports Data Highway Plus (DH+) and Remote I/O (RIO) network protocols, providing a critical bridge between legacy Allen-Bradley networks and modern ControlLogix architectures. The “XT” designation ensures reliable operation in extreme industrial conditions, with an operating temperature range of -25°C to +70°C. This module features highly configurable network types—including DH+ communication rates of 57.6K, 115K, and 230K, or RIO Scanner functionality—and utilizes convenient rotary switches for simple node addressing. Built for safety and durability, it carries multiple hazardous location certifications including Class I, Division 2 and ATEX Zone 2.