SMA Sunny Data Control V.5.0 - Manual (Page 24)

Connecting the PC to a Communication Device SMA Technologie AG
26 SDC-TEN081450 Technical Description
Sunny Boy Control / Plus
8. Plug the 9-pin D-Sub female connector into the
port on the Sunny Boy Control which is
equipped with the RS485 interface.
(A) Sunny Boy Control: PC (COM 2)
(B) Sunny Boy Control Plus: PC (COM 2) or
AUX (COM 3)
9. Connect the PC's Data+ with the Data+ of the
Sunny Boy Control / Plus, and so on. The 3
connections should be made directly.
Use listed cable colors.
Termination
10. On the last Sunny Boy Control / Plus in the 485
data bus, Jumper A should be plugged into the
interface being used.
11. Jumper A must not be plugged into the used
interface on any of the other
Sunny Boy Control / Plus devices.
12. Remove any jumpers A, B or C which may be
plugged, from the interfaces used.
A B
A B