SMA Sunny Boy Control - Manual (Page 27)

Sunny Boy Control
SMA Technologie AG
User Manual SUNBC-14:NE0206 23
Recommended RS485 Cable
For an RS485 connection, we recommend to use a so-called “LiYCY” cable, shown
below.
1 2 3 4
Flexible PVC
isolation
Shielding
Twisted pair 2 (2 x 0.25 mm)
Twisted pair 1 (2 x 0.25 mm)
Fig. 3.6: Recommended cable for RS485 communication
Jumper Settings for RS485 Communication on the COM1 Port 1
Insert RS485
Piggy-Back here
A
B
C
Jumper mounted:
Jumper not
mounted:
D
E
F
G
Jumper settings
for deactivating
onboard powerline
1 On older models of the Sunny Boy Control Plus, these jumpers cannot be modified because the
upper circuit board, which cannot be removed, prevents access to them.