It is an ABB DC522 I/O module.

The DC522 is a reliable module used for digital signal processing in ABB automation systems. The ABB DC522 provides digital signal control. ABB DC522 Digital Control Module – Industrial I/O Card ABB DC522 Control Module | ABB Digital Card The ABB DC522 is a control card designed for industrial automation. ABB DC522 PLC I/O MODULE, abb dc522 PLC I/O Module, I/O expansion module, digital input/output

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