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The Allen-Bradley 1756-N2XT is a versatile slot filler module designed for the 1756 ControlLogix system, featuring RS-232, RS-422, and RS-485 communication ports. It operates efficiently with a backplane current of 800 mA at 5 volts and 3 mA at 24 volts, while its SERCOS data rate reaches up to 8 Mbps. With robust thermal dissipation of 21.2 BTU/hour and an isolation voltage of 50 volts continuous, it supports applications ranging from -25°C to 70°C, making it ideal for maintaining and closing off unused slots in ControlLogix-XT chassis for enhanced safety and maintenance. The modules fused system ensures reliable performance with a slow blow fuse rated at 3.15A at 250V AC, and it connects using RTB: 1756-TBNH or similar interface modules for comprehensive field-side wiring setup.