SMA 485PB-NR - Manual (Page 15)

SMA Solar Technology AG Electrical Connection
Installation Guide 485PB-SB-NR-IEN101311 15
4.4 Termination
Connect the termination only if the inverter is positioned at the end of the RS485 communication bus.
Termination is done through a jumper on the jumper slot. Refer to the RS485 cabling plan poster for
the termination of an RS485 communication bus.
Carry out the following steps to terminate the RS485 communication bus.
1. Open the inverter as described in the inverter documentation.
2. Plug the jumper onto the jumper slot A in the
inverter.
3. Close the inverter as described in the inverter
documentation.
☑ The RS485 communication bus is terminated.