SMA Sunny Boy Control Light - Manual (Page 76)

Sunny Boy Control Light Chapter 7: Appendix
SUNBCL-11:NE
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SMA Regelsysteme GmbH
Acceptable transmission depends on the isolation or elimination of the interference
source. Either the connection of the interfering device to another phase is sufficient
or a carrier frequency suppression has to be installed. The suppression device has to
separate the part of the mains, in which the data transmission should take place,
from that part of the mains network in which the interfering consumers are installed.
The efficiency of suppression unit can be boosted by the installation of a damping
module active in the carrier frequency band of the interfering device on its side (in
front of the suppression unit.)
house electricity distribution
connection to
public grid
Sunny Boy
Control Light
Sunny Boy Sunny Boy
D
Blocking
Filter
Damping
Module
Fig. 7.9: Powerline with strong external interference