The Allen-Bradley 1756-OB16I is a ControlLogix 16-point DC isolated output module that provides 16 individually isolated 10–30 VDC outputs in a 36-pin backplane package. Each output can sink or source up to 2 A, with a total module current rating of 8 A and 250 V continuous isolation between outputs; the module operates in the 12/24 VDC category. Backplane power is 1.8 W and maximum dissipation is 3.6 W at 60 °C, with turn-on/turn-off delays of 1 ms and 2 ms, respectively. It is used to drive discrete DC field devices within a ControlLogix I/O rack, delivering isolated, optically independent output channels for robust control of loads in automation systems.
