What type of interface is commonly found on an optical power meter besides RS-232 ports?

An optical power meter often includes a USB interface, which allows for the easy transfer of measurement data to a PC or other devices for analysis and record-keeping. This functionality enhances the usability of the meter by enabling technicians to quickly download test results, perform further analysis on a computer, or document results in a report format. The widespread adoption of USB makes it a standard and practical interface in many measurement and testing devices, supporting quick and efficient data management.

In contrast, while HDMI and VGA interfaces are more commonly associated with video outputs and displays, they do not serve the primary function of transferring measurement data from the optical power meter. Ethernet, on the other hand, is typically used for networked devices rather than standalone measurement instruments, which may not require continuous network connectivity.