Final answer:
TELUS standards for light levels at the ONT relate to the range of light intensity required for optimal fiber optic communication. Exact standards are typically guided by the ONT manufacturer's specifications and are measured using an optical power meter by technicians.
Step-by-step explanation:
The TELUS standard for light levels at the Optical Network Terminal (ONT) pertains to the optimal range of light intensity received by the ONT from the fiber optic cable to ensure a reliable and efficient communication signal. Maintaining proper light levels is crucial for the performance of the fiber optic network. While specific numbers for these standards may vary and are often not publicly disclosed by providers, it is generally expected that the light levels should be within the range specified by the manufacturer of the ONT equipment, which can typically be found in the device's technical specifications. Technicians installing or maintaining the ONT will use a device known as an optical power meter to measure the light levels and adjust them as necessary. It is important that these light levels are neither too low (which could result in data loss and errors) nor too high (which could oversaturate the receiver and lead to performance degradation).