Seco SBC-C20 User Manual page 36

CAN Bus connector
This interface is compliant to CAN specifications rel. 2.0 part B. The transceiver used is designed for high-speed
CAN BUS CN42
(up to 1Mbps) CAN applications, and also offers improved EMC and ESD performances.
Pin Signal
CAN Bus Connector is a 4-pin single line SMT connector, type MOLEX 53398-0471 or equivalent, with pinout
1 VIN_SYS
shown in the table on the left. Mating connector: MOLEX 51021-0400 receptacle with MOLEX 50079-8000
female crimp terminals.
2 CAN_H
CAN_H: High-Level CAN bus line.
3 GND
CAN_L: Low-Level CAN bus line.
4 CAN_L
A 120 termination resistor can be placed between CAN_H and CAN_L signals. It can be connected or disconnected from the line by using JP4
jumper (Jumper inserted = termination connected).
Debug UART Connector
Onboard, connector CN43 carries out signals related to Debug Serial Port, which is managed by NXP i.MX8 UART2
Debug UART CN43
internal controller, with signals available at TTL level. This interface can be used for the debugging of the processor.
Pin Signal
For this purpose, a dedicated 4-pin Connector, Type MOLEX p/n 53398-0471 or equivalent is provided. Mating
1 VDD_3P3V connector: MOLEX 51021-0400 receptacle with MOLEX 50079-8000 female crimp terminals.
2 UART_Rx
UART_RXD: UART #1 Receive data signal, electrical level VDD_3P3V.
3 UART_Tx
UART_TXD: UART #1 Transmit data signal, electrical level VDD_3P3V.
4 GND
SBC-C20
SBC-C20 User Manual - Rev. First Edition: 1.0 - Last Edition: 1.0 - Author: A.R. - Reviewed by C.M. -Copyright © 2020 SECO S.p.A.
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