Master device: Among the devices that are connected through RS-485, the device that plays the role of a controller. It processes data by periodically monitoring the slave device. It is also called a host device.

Matching timeout: The time limit given to device matching or server matching. Matching fails if the matching does not get completed within the time limit.

Message timeout: The duration of time a message is displayed when there is no user interaction.

Minutiae: The specific details in the ridges of a fingerprint used to recognize the fingerprint.

Model number: A generic number given to a device by the manufacturer in order to identify its type.

MSB (Most Significant Bit): The bit at the highest position of binary data (the left-most bit) or its content. It is the opposite of the Least Significant Bit (LSB).

MTU (Maximum Transmission Unit): The maximum amount of packets that can be transmitted through the network.