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Allen Bradley / PLCs / SLC 500
The Allen-Bradley 1747-KE is a SLC 500 DH-485/DF1 Interface Module. This DH-485/DF1 Interface Module has RS-232 Port Communication along with RS-232/423, -422, -485, DH-485 Communication Ports with a Backplane Current (5 Volts) of 150 milliamps.