35 Safety Bus Manual — P/N LS10177-000HI-E:B 02/21/2019System Components SB-NCM ModuleGrounding the ModuleThe module must be connected to the system ground using the screw located on the front panel.3.6.4 Typical Connections6 -L7 CH-7 line input negative7 +L8 CH-8 line input positive8 -L8 CH-8 line input negativeFigure 3.7 SB-NCM Module ConnectionsS81-EOL5.6 kOhmMax. Current: 180 mAFigure 3.8 Typical Visual/Acoustic Signal ConnectionsNOTE: The SB-NCM module active outputs, when configured in fail-safe mode, are deactivatedwhen there is:- no communication with the control board for 1 minute- no communication between the control board and the panel for 5 minutes
