SMA AUTOMATIC SWITCH BOX L - Manual (Page 39)

SMA Solar Technology AG Electrical Connection
Installation Guide AS-BoxL-IEN084410 39
5.9.3 Connecting the communication cable
Connection procedure
Plug the communication cable (black) for the Sunny Backup master into the "ComSyncIn" socket on
the circuit board inside the Automatic Switch Box. Leave the termination resistor plugged into the
"ComSyncOut" socket.
☑ The communication cable is connected.
ComSyncIn ComSyncIn ComSyncOut ComSyncOut Sl v2/L3 BackupVtgCur Sl v2/L3 BackupVtgCur Sl v1/L2 BackupVtgCur Sl v1/L2 BackupVtgCur Mstr/L1 BackupVtgCur Mstr/L1 BackupVtgCur
F6 Generator
L2 L1 L3
X3/ Backup Loads
N N PE
F5 Backup Loads
L2 L1 L3
X4/ PV System L1 L2 L3 N PE X5/ PV Meter L1 L2 L3 N PE Generator N PE
X2/ SBU5000
L1 L2 L3 N N N PE PE PE X1/ Load Meter L1 L2 L3 N N PE
IN L1 PE
X7 Feed in Signal