34 6820 / 6820EVS Manual P/N LS10144-001SK-E:C  09/28/2017
4.4.2  Wiring Configurations
Figure 4.8 illustrates Class A wiring configuration and Figure 4.9 illustrates Class B configuration.
Figure 4.8  SBUS Class A Wiring
Figure 4.9  SBUS Class B Wiring
Supervised
Power Limited
Caution
For proper system 
supervision do not use 
looped wire under terminals 
marked A, B, +, and - of the 
SBUS device connectors. 
Break wire runs to provide 
supervision of connections.