ABB i-bus® KNX Diagnosis and Protection Module DSM/S 1.1

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Presentation transcript:

ABB i-bus® KNX Diagnosis and Protection Module DSM/S 1.1

2 interconnected bus connection terminals (no datarail necessary) 2 modules wide 2 interconnected bus connection terminals (no datarail necessary) Fast and easy diagnosis of the bus state Protects devices against interference voltage spikes 2CDC071261F0005

U = OK lights up, if bus voltage > ~ 22,5 V U < Umin lights up, if bus voltage < ~ 20,5 V Telegram flashes / lights up during telegram traffic If U < Umin relay contacts are activated as well (changeover contact)

Protection The DSM incorporates a suppressor diode (43 V / 1500 W @ 10/1000µs-pulse), which suppresses transient overvoltages and interference voltage spikes. It is recommended to apply the device as a “disconnection point” for example between building sections, to provide optimum protection. The DSM should be used together with an overvoltage protection system.