SMA SI 3.0-11 Quick Reference Guide V.3.0 - Manual (Page 29)

SMA Solar Technology AG 4 Battery Backup Systems With All-Pole Disconnection
Installation - Quick Reference Guide Ersatzstrom-IS-en-30 29
F Data cable for the internal
communication in the cluster
Sunny Island: ComSync Out connection
With slave 1: connection of internal communication bus after slave 2
With slave 2: leave terminator plugged in. Slave 2 is connected to slave 1
only.
Position Designation Description/information