Fill in the Blanks

  1. With space division exchanges _________________ physical paths are provided, through the exchange, from one subscriber line to another.
  2. With digital exchanges switching stages operate by _________________ signals in time.
  3. Concentration stages provide the required grade of service with the greatest possible _________________.
  4. When a concentration stage serves the called subscriber it is sometimes called an _________________ stage.
  5. BORSCHT functions are based on the initials of the _________________ words.
  6. To join together a 4-wire circuit and a 2-wire circuit a _________________ coil is used.
  7. Any type of time-division switching is a _________________ function.
  8. Local distribution networks provide _________________ and as economically ...

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