Deditec ETH-RELAIS-8, Описание аппаратуры

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Hardware description |
Seite 20
2.3.5. Inputs
2.3.5.1. Registering short input pulses
Short input pulses between to read-out cycles are registered through an
additional logic and can be separately read-out.
2.3.5.2. Galvanically decouppled through optocouplers
AC input opto-couplers provide a galvanic isolation of the module towards the
connected equipment. They also provide a safe connection to the module for
reverse currents and high voltage peaks.
2.3.5.3. Visual control of the inputs (depends of module)
The state of each input is directly signalized by a separate LED. This simplifies
to detect and rectify wiring errors, because the signals on the cables are directly
observable.
Note: Only available for the ETH-RELAIS-8 and ETH-RELAIS-8_B module