SMA SSM8-21-BS - Manual (Page 39)

SMA Solar Technology AG 7 Commissioning
Installation Manual SSMxx-21-IA-BS-JP-en-20 39
Figure 16: Termination of the Sunny String-Monitors (example)
Requirement:
☐ All Sunny String-Monitors in a string are connected to the RS485 communication bus (see Section 6.7 "Connecting
the Data Cables", page 31).
Procedure:
1. In the last Sunny String-Monitor of each string, plug the jumper into
pin header S1 at position T on the lowest String-Monitor Unit.
2. Make sure that in the other Sunny String-Monitors of the string, the
jumpers are plugged into pin header S1 at position P of the lowest String-Monitor Unit.