Description: alphanumeric identifier unique to a terminal (or group of terminals) determined by the manufacturer; Name: Manufacturer serial number
Description: Unique combination of numbers and letters used to identify the device once it has been manufactured; Name: Serial number
Description: ten times the logarithm to the base 10 of the ratio of the sound power of a source, p, to a reference value, p0, expressed in decibels; Name: sound output level