What are the different types of digital interfaces available for Balluff transducers?

Balluff offers various digital interfaces such as:

• Pulse interface:
  The time between a polling and the response pulse is directly proportional to the position
  of the position transducer on the measurement path. The transmission of the impulses
  with RS485 / 422 differential drivers guarantees interference-free transmission up to 500
  m cable length.
• Synchronous serial interface SSI:
  The position of the position transducer on the measuring path is transmitted serially to
  the controller in a data word. Micropulse position transducers with SSI interface can be
  connected directly to controllers or axis control cards with an SSI interface.
• Digital I/O interface:
  The displacement sensors can be directly connected to the controller via digital inputs /
  outputs and is therefore a cost-effective solution compared to analogue coupling.
  Each output can be programmed with positive or negative logic and as a cam or as a
  switching point.
• Quadrature interface:
  The encoder with quadrature interface is connected directly to a standard rotary encoder
  interface (90 ° phase shift, A & B).         
  

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