Power filter board - technical overview

The Power Filter board is utilized to protect the circuitry within any DC input, multi-card RTU. The board protects the input power supplies by using a Pi section filter to block voltage spikes that may have an effect on the power supplies or status inputs.


The attached .pdf document provides technical information on the power filter board:

  • general description
  • technical specifications
  • board drawings


Note: the complete Callisto RTU manual can be found in the knowledge base article entitled "Callisto RTU - technical guide".