Users Guide

RS485 connector mapping

Pin Signal

1 A(-)

2 B(+)

3 GND

Manufacturer part number Molex 359530-5503

https://www.molex.com/

NOTE: This part number is for reference only and is

subjected to change.

RS422/485 connector mapping

Pin Signal

1 TXA(-) / A(-)

2 TXB(+) / B(+)

3 GND

4 RXA(-)

5 RXB(+)

Manufacturer part number Molex 359530-5505

https://www.molex.com/

NOTE: This part number is for reference only and is

subjected to change.

System—Bottom (DIP switches)

Feature

1 RS422/RS485 port toggle switch Toggle between RS422 or RS485 standard.

2 RS422/RS485 port resistor switch Enable/disable the dierential termination resistor.

3 RS422/RS485 port bias resistor switch Enable/disable the bias resistor for the RS422/RS485 port.

4 ePSA diagnostic switch When the position of the switch changes, the system starts in ePSA

(Enhanced Preboot System Assessment) mode on the next start.