Electrical Connection SMA Solar Technology AG
50 SI5048-TB-TEN110340 Technical Description
6.5 Interface for External Communication
You can connect SMA Solar Technology communication devices (e.g., Sunny Boy Control,
Sunny WebBox) or a PC with the appropriate software to a communication interface. A detailed
cabling diagram can be found in the communication device manual, the software or on the Internet
at www.SMA.de/en.
You can incorporate an RS485 communication interface into the Sunny Island.
6.5.1 Connection of the Interface
Powerline / Powerline modem (NLM)
Communication via Powerline/Powerline modem (NLM) is not possible in off-grid systems.
Communication in a cluster
Fitting a communication interface in a cluster is only necessary on the master.
Position Description
A Slot for communication interface
B Cable route
C Enclosure opening in the base of the Sunny Island