This glossary includes key terms of the IoT (Internet of Things) & M2M (machine-to-machine) communications industry, including wireless and cellular technologies spanning many different markets. It is updated to present current terminology and usage. Your participation and feedback are most welcome—to submit comments, new entries, or suggestions, contact us today.

# A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
There are 5 names in this directory beginning with the letter O.
OBE
On-Board Equipment.
On-Board Equipment (OBE)
Components of a Vehicle-to-Infrastructure (V2I) implementation located in a moving vehicle, communicating wirelessly with roadside equipment (RSE). OBE applications may interface with other vehicle systems via the CAN Bus.
Open Source
A type of software where the source code is available and can be modified and freely redistributed. Open source is the opposite of closed, proprietary systems. Many developers insist that IoT must have open standards to reach its full potential.
Open VPN
An open-source software application that implements virtual private network (VPN) techniques for creating secure point-to-point or site-to-site connections in routed or bridged configurations and remote access facilities. This is a security method which can be implemented on devices such as cellular routers.
Operational Technology (OT)
As opposed to Information Technology (IT), this refers to technologies associated with control and automation. If IT helps run business processes, OT helps execute the physical interactions that control value creation.