SIRIUS
®
TECHNICAL REFERENCE MANUAL
5.2.5. Isolated version: USB
The (standard) SIRIUSi modules are isolated between each other and the main board. Some modules
generate power for electronics and for external pins: this power supply is again isolated against other
modules, the main board and the housing.
Inside of one module, the power supply pins, counter and analog inputs are not isolated between
themselves (they have the same ground) that is available on the GND connector pin (e.g. The analog
input and the counter of one ACC+ module share the same GND).
Isolated motherboard
Warning
Be careful with voltages >25 VAC or >35 VDC! These voltages are already high enough in order
to get a perilous electric shock by touching the wiring.
SIRIUS
®
V20-1 133 / 336
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