Siemens ST950 Handbook page 6

positive voltages with respect to earth are clamped by the controller. Should a positive
voltage be applied to the signal outputs, the controller will consume current to maintain a
maximum positive voltage of approximately 0.8 volts at the controller terminals.
Should a source with a large current sourcing capability be applied, catastrophic damage
may result. The extent and results of such damage cannot be predicted or guaranteed.
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manpreet.jeerh
ST950 ICM Handbook
Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
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Mobility is a division of Siemens Plc
6 of 154
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January 2020
667/HE/45950/000