Product Manual

10
SYSTEM HARDWARE OVERVIEW
RS422 SERIAL INTERFACE
A UART interface is provided that uses RS422 voltage levels on the communications connector. At power-on
a Boot-loader program is executed and uses a fixed Baud rate of 115200,N,8,1. The Boot-loader executes the
main application code which uses a default baud rate for of 460800 8 data bits with odd parity. The Baud rate
of the application code may be changed using the *BAUD command to speeds of up to 921600. The baud rate
settings are saved into non-volatile memory of the radar ready for the next time the radar is powered on.
The serial interface default setup during normal operation is shown in the table below.
The RS422 provides the primary output of the radar in the form of ASCII messages.
Connector
The connector on the rear of the 317 is a Lumberg RSFM 8/0.5 M
8 Poles 1 - white
2 - brown
3 - green
4 - yellow
5 - grey
6 - pink
7 - blue
8 - red
Connector Mating Cable
The cable assembly required to mate with the Lumberg connector used is RKT 8-282
8 Poles 1 - white
2 - brown
3 - green
4 - yellow
5 - grey
6 - pink
7 - blue
8 - shield
DEFAULT UART SETTINGS
Parameter Value
Baud rate 460800
Data bits 8
Parity bits odd
Stop bits 1
Flow control None
1 2
6 4
8
7 3
5
2 1
4 6
8
3 7
5
1 2
6 4
8
7 3
5
2 1
4 6
8
3 7
5