1756-PA75 Allen-Bradley PLC is a power supply module that provides the necessary power for the devices connected to an Allen-Bradley ControlLogix system.

1756-N2 Allen-Bradley PLC is a ControlLogix communication interface module.

1756-OB32 is a digital module of Allen-Bradley ControlLogix series PLCs.

1756-CNB is a ControlNet communication module by Allen-Bradley, which is commonly used in their ControlLogix programmable logic controllers (PLCs).

1756-OA16 is a Digital AC Output Module manufactured by Allen-Bradley.

1756-IV32 Allen-Bradley PLC is a digital input module from the ControlLogix series of programmable logic controllers (PLCs) by Allen-Bradley.

1766-L32BXB is a compact Logix controller from Allen-Bradley's MicroLogix line of programmable logic controllers (PLCs).

1766-L32BWAA is an-Bradley CompactLogix 5370 controller.

The 1768-PA3 is a power supply module from Allen-Bradley's CompactLogix series of programmable logic controllers (PLC).

1746-OW8 is a digital module from Allen-ley's SLC series of programmable logic controllers (PLCs).

1746-NR8 Allen-Bradley PLC module is an analog input module.

1746-IB32 is a digital input module in the Allen-Bradley SLC 500 series of programmable logic controllers (PLCs).