Translations:Wiren Board 4:Аппаратная часть/173/en

As compared to previous versions, input protection and general noise immunity are significantly improved.

  1. All inputs are protected from applying the power supply voltage (up to 24 V) and transient noise.
  2. Wiren Board 4 is protected against reverse polarity.
  3. Wiren Board 4 features one optically isolated RS-485 interfaces.
  4. Low-side FET switches on Ax and Dx inputs are protected from negative voltage spikes from inductive loads.
  5. Relays have sparking suppression circuits
Источник — https://wirenboard.com/wiki/index.php?title=Translations:Wiren_Board_4:Аппаратная_часть/173/en&oldid=5232