User's Manual
Table Of Contents
- Intended audience of this document
- How to get technical support
- Trademarks
- Revision history
- How to get started
- Contents
- 1 Safety-related information
- 2 Consignes de sécurité
- 3 Technical terms and graphical symbols
- 4 Termes techniques et symboles graphiques
- 5 Product Overview
- 6 Certifications
- 7 Main CPU Module interfaces
- 7.1 Main CPU Module connectors (vers: -11)
- 7.2 Main CPU Module connectors (vers: -21 and -31)
- 7.3 Main CPU Modules Interfaces
- 7.3.1 USB0 and USB1: USB 3.0 connectors specifications
- 7.3.2 DP: Mini DisplayPort specifications
- 7.3.3 ETH0, ETH1, ETH2: Gb Ethernet connectors specifications
- 7.3.4 PWR IN: Power IN connector specifications
- 7.3.5 Navigation system specifications
- 7.3.6 LTE cellular modem specifications
- 7.3.7 Wi-Fi and BT specifications (vers: -21 and -31 only)
- 7.3.8 MVB ESD+ (RX only or RX/TX) interface specifications (vers: -11 only)
- 7.3.9 Earth connection terminal specifications
- 7.4 Main CPU Module LED indicators
- 7.5 Main CPU Module Service Panel and Service Interfaces
- 8 BoltAIR 20-31 interfaces
- 9 BoltIO 20-31 interfaces
- 10 BoltSER 20-31 interfaces
- 11 Product installation and power supply
- 11.1 Introduction
- 11.2 How to install the product on a DIN Rail
- 11.3 How to remove the product from a DIN Rail
- 11.4 Mechanical specifications
- 11.5 How to supply power to the system
- 11.5.1 Power supply specifications
- 11.5.2 The Ignition Key (Key Signal)
- 11.5.3 Main CPU Module and Expansion Modules electrical interconnections
- 11.5.4 Power supply safety instructions
- 11.5.5 How to supply power and turn ON the product
- 11.5.6 How to turn OFF the system
- 11.5.7 How to trigger a hardware reset of the system
- 12 Eurotech Everyware IoT
- 13 Product maintenance
- Notes
7 Main CPU Module interfaces BoltGATE 20-31 User's manual EN
7.3.8 MVB ESD+ ("RX only" or "RX/TX") interface specifications (vers: -11 only)
7.3.8.1 MVB ESD+ Connection Notes
An ESD segment shall be terminated electrically at each end by a terminator.
The terminator shall present an impedance of 120.0 Ω ± 2 % measured at 1.0 BR.
Example of terminator (from the IEC 61375-1: 2007):
The terminator shown in the following figure presents an impedance of 120.5 Ω and biases the line with
about 0.786 V. Note that the Vpp source shall have a very low inner impedance in the frequency range of
0.5 BT until 2 BT in order that the equivalent terminator impedance seen by the line is within the
specified tolerance. Resistors are belonging from the E96 series 1% tolerance.
Components Type Value Connections Type Value
Ru Resistor 383 Ω Vpp Supply voltage 5.0 V
Rm Resistor 143 Ω GND Reference voltage 0.0 V
Rd Resistor 383 Ω
Fig. 2 - Example of terminator
The terminator shall be included into a connector, to be plugged into the empty receptacle of a device
located at the end of the segment, according to the wiring shown in the following figure:
Fig. 3 - ESD terminator connector arrangement
52 / 98 © 2022 Eurotech SpA - Via Fratelli Solari 3/A - 33020 AMARO (UD) - Italy
Code: BTGATE-20-31_MAN_EN_1-6
Revision: 1-6 2022.07.28