S closed, closed: continuous light, manual operation, observer
inactive.
Automatic manual operation with series switch
S open, open: everything off.
.
S closed, open: normal automatic mode.
Parallel connection with automatic staircase lighting mechanism or
remote-control switch
The illumination switched either the automatic staircase lighting
mechanisms via the observer.
2-way wiring
Existing 2-way switches can replaced with “T” buttons (NC contact). Actuating the
button for least second triggers switching.
Connection several observers (parallel connection)
Button “T” (NC contact)
(System-sensor cables from two more observer systems may not be
wired together!)
Important:
Parallel connection does not increase the maximum connected load.659
Gira electrical installation systems
Wiring diagrams Lighting control
I
Technical
information
Wiring diagrams
Existing installation
Connection observer and system power section
Replace existing switch “S” with “T” button (NC contact)
