GLOSSARY
| AFC | Automated fare collections |
| ATC | Automatic train control |
| ATO | Automatic train operation |
| built-in web server | Secure server that can be used for diagnostics, firmware updates and implement customer-specific web pages |
| CAN Gateway | Controller Area Network (CAN) Gateway |
| CBTC | Communications Based Train Control |
| CCTV | Closed-circuit Television |
| CIP | Common Industrial Protocol - communication architecture for industrial devices |
| CLI | Command-line interface |
| cyclic process data | Continuous data exchange sent at regular intervals to constantly monitor a device |
| DIN-Rail | Industry standard type of rail used for mounting industrial computer modules |
| duagon IP | Proven intellectual property cores based on industry standards |
| DUAL HDLC | High-Level Data Link Control with two channels |
| EMD | Electrical Medium Distance |
| ESD | Electrical Short Distance |
| ETB | Ethernet Train Backbone |
| FFF | Form, Fit and Function, also known as F3 framework, are the main specifications that describe a specific component and determine replacement parts |
| FIP | Factory Instrumentation Protocol, a standardized fieldbus protocol defined in the European standard EN 50170 |
| FPGA | Field-programmable gate array, an integrated circuit where the functionality can be configured by the user |
| HVAC | Control systems for Heating Ventilation Air Conditioning |
| Intelligent Gateway | Intelligent gateways securely connect multiple IoT devices to a cloud-based service bridging various protocols |
| IoT Gateway | Internet of Things gateway for IoT device-to-device or device-to-cloud communication |
| LON | Local Operating Network |
| LonWorks | Local Operating Network: network communication protocol for automation applications |
| LoRa Gateway | Long-Range low-power IoT gateway |
| LTE | Long-Term Evolution - standard for wireless broadband communication |
| MVB | Multifunction Vehicle Bus - a serial communication bus used in the train communication network to connect devices in rail vehicles |
| PIS | Passenger Information System |
| PoE | Power over Ethernet |
| PROFINET | Open industry standard for communication over industrial Ethernet |
| RS232 | Serial communication standard for voltage and signal levels in data transmission |
| RS485 | Serial communication standard for electrical characteristics with bi-directional and multipoint systems support |
| TCMS | Train Control and Management System |
| TBN | Train Backbone Node |
| TCN | Train Consist Network |
| TCN | Train Communication Network |
| TCS | Train Control System |
| TCN | Train Control Network |
| Train backbone | Inter-consist train communication network |
| Trainnet | Train computer system for onboard railway applications |
| TRDP | Train Real Time Data Protocol |
| WorldFIP | Open system international fieldbus standard EN50170 used in various architectures. |
| WTB | Wire Train Bus |