Nexcom EBC-3A1 Series, User Manual

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3.3.2. RS485
RS485 Information
2 RS485 serial ports for user interface control, and Embux provided 2-line RS485 interface.
(Data+ and Date-).
The connection diagram please refer below (daisy chain):
RS485 Specification
Name Value
Baud Rate Up to 500Kbps
Data Bits 5, 6, 7, 8 bits
Parity None, Even, Odd, Mark, Space
Stop Bits 1, 1.5, 2 bits
RS485 Device Node
Connector Device node Pinout Define Section
RS-485 (JRS-485) /dev/ttymxc1 2.3.2.1.22
JMISC /dev/ttymxc2 2.3.2.1.16
RS485 Sample Code
http://github.com/embux/Example/tree/master/J485_test
Data-
Data+
ICM-3011
RS
4
8
5
De
vi
ce
RS
4
8
5
De
vi
ce
Dat
a+
Dat
a-
Data+
Dat
a-