33 Safety Bus Manual — P/N LS10177-000HI-E:B 02/21/2019System Components SB-NCM Module3.6 SB-NCM ModuleThis module can control eight 250mA outputs for controlling notification appliances (visual/acous-tic signals). The current of the 8 outputs is limited by self-resetting fuses. Line control is carried outby inverting the polarity. This also makes it possible to control electronic devices having low Cur-rent consumption in stand by.Notes:Line control occurs only when the outputs are inactive.Synchronization of devices between zones or within a zone is not permissible using this module.3.6.1 Technical Specifications3.6.2 Visual IndicatorsThe front panel of the module features 19 LEDs that indicate the following conditions:• Wiring: Class B Style Y• Max channel current: 180 mA• Fuse trip current: >600 mA• Power supply voltage: 24VDC• Current consumption in standby: 88mA• Operating temperature: 0 to 49 °C (32 to 120.2 °F)• Storage temperature: -55 to 85 °C (-67 to 185°F)• Max humidity: 0-95% non condensing• Protection rating: IP30• Mounting: T35 DIN rail• Dimensions: 53 x 167 x 100 (W x H x D mm) (2.1” x 6.6” x 4”)• Weight: approx. 600g (21 oz.)• Connections: 2.5mm² removable terminal blocks• Max. Line Impedance: 20 ft. (6.096 m) in the same room, in conduit• Max. Line Impedance Output Ch.: 50 ohms• Ground Fault Impedance: 500 ohms• Max distance between two modules: 20 ft (6.096 m) in conduitTag Color Mode ConditionRUN GreenO On Solid Normal operationOff Module failure or no powerLK1-Fault YellowO Off Communication on Link LK1 presentBlinking Link LK1 towards board interruptedOn Solid Communication failure on Link LK1LK2-Fault YellowO Off Communication on Link LK2 presentBlinking Link LK2 towards board interruptedOn Solid Communication failure on Link LK2L1-L8 RedO Off Channel inactiveOn Solid Channel activeL1-L8 YellowO Off Channel in normal stateBlinking Channel fault (module or line)On Solid Channel disabled