Siemens FS20 - Page 303

Mounting and installation FC2080
Wiring up the system supply and module bus
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Building Technologies
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Fire Safety
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Pin assignment for two carriers (19", power supply):
Signal From optocoupler To optocoupler To terminal X10
Battery PSU2/K1-11 -- X10-1 (#BATT)
PSU2/K1-14 PSU1/K1-11 --
PSU1/K1-14 -- X10-2 (COM)
Mains PSU2/K2-11 -- X10-3 (#MAINS)
PSU2/K2-14 PSU1/K2-11 --
PSU1/K2-14 -- X10-4 (COM)