What is typically the first step when adjusting an optical receiver?

The process of adjusting an optical receiver typically begins with turning on the optical receiver. This step is crucial because the receiver needs to be powered on to perform any adjustments or checks. Once the device is powered, its initialization can take place, allowing for subsequent diagnostic tests and calibrations to be performed effectively.

Following the powering on of the optical receiver, the technician can then proceed to other important steps such as checking input power levels, inspecting optical cables for integrity, and calibrating the electrical interface. Each of these steps is essential, but they are predicated on having the receiver powered to ensure that all functionalities are operational and can be accurately assessed. Thus, turning on the optical receiver lays the foundation for a successful adjustment process.