System implementation - HW

AN3975

8/26

Doc ID 022170 Rev 1

Figure 3 shows the schematic of the RS485 module. The connection of the pins for the

jumper J1 which is not depicted on the schematic.

Figure 3.

ST485ABDR in SO8 package - RS485 module schematic

Figure 4 visualizes Table 1 showing the physical position of the signals located on the

extension connector CN3 of the connectivity gateway.

Figure 4.

CG (connectivity gateway) CN3 connector