The Allen-Bradley 1794-APB from Rockwell Automation is a Flex I/O PROFIBUS adapter, providing an interface for Flex I/O modules to PROFIBUS networks. Operating on 24V DC, with a 19.2-31.2V range, it has a 640 mA output and 850V DC isolation. With up to 12.0Mbits communication rate, it's an efficient industrial network solution. Manufacturer Rockwell Automation Brand Allen-Bradley Part Number/Catalog No. 1794-APB Series Flex I/O 1794 Product Type PROFIBUS Adapter Voltage 24 Volts DC Input Voltage Range 19.2 to 31.2 Volts DC Flexbus Output Current 640 mA maximum at 5 Volts DC Isolation Voltage 850 Volts DC Power Consumption 400 mA maximum Power Dissipation 7.68 Watts maximum at 19.2 Volts DC Communication Rate All rates up to 12.0Mbits PROFIBUS Connector 9-pin D-shell Thermal Dissipation 26 BTU/hour at 19.2 Volts DC UPC 10662468112175