The Allen-Bradley developed 1771-OQ is an Isolated 24 VDC output module. This output module is completely controlled by the condition of the relevant bits in the PLC datasheet. It is available in a variety of sizes. It is a component of the 1771 Digital DC output configuration for the PLC-5 Systems family of digital output modules. The device contains a total of eight outputs with an operational operating voltage of 20.4 to 26.4 VDC power supply. The module is available in black or white. The 1771-OQ is equipped with a constant current of 9 A. For applications requiring direct current signal termination and isolated circuits, as well as motor control centers where separate control transformers are needed, this device is an excellent choice. This 1771-OQ isolated 24 VDC output needs a 225 mA backplane current load to function properly. It is powered by the power source of the 1771 I/O chassis backplane, which is located on the chassis. In the chassis, it may be put into any available slot, except for the leftmost slot, which is already earmarked for adapters or CPUs. The accuracy with which keys are pressed or where they are placed is critical. Each of the backplane connections should have keying bands that correspond to each of its respective module slots. Make sure that just your fingers are used to delete or insert keys. It is conceivable that the use of tools will result in backplane connection damage and/or system problems. Each of the 1771-Q's' outputs is equipped with a jumper. The module is typically utilized in its factory-installed state. These jumpers, on the other hand, should be eliminated if solenoids are being used. This will shorten the time it takes for the solenoid to switch off and lower the off-state clamping voltage, enabling the output to ignite more quickly.