Connecting The Rs422 Communication Interface - Koch 2.0 Series Operating Manual

5 Commissioning
5.4
Basic information
The pin assignments
for connector X4
24
Operating manual Energy storage solutions
V1.3DE/EN

Connecting the RS422 communication interface

Fig. 11: Lower side of the housing, RS422 communication interfaces X4
• The communications interface q serves to exchange data with the Energy storage
solution.
• This interface must be connected with an external RS422 communications
interface.
• Communication only works if the device is connected to the charged DC link.
Pin Signal Description
1 RX+ connect with the external TX+ interface
2 RX- connect with the external TX- interface
3 GND connect with GND
4 +12V connect with the supply voltage +5...16 V
5 TX+ connect with the external RX+ interface
6 TX- connect with the external RX- interface
X4
Fig. 12: The pin assignments of connector X4 and the external interface
1
RX-
RX+
+5...16 V
GND
TX-
TX+