The Functions Performed Within Communication Systems

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Across
  1. 3. sending
  2. 5. data
  3. 6. protocol levels
  4. 8. common clock
  5. 10. interface, transmitter
Down
  1. 1. decodes
  2. 2. creation
  3. 4. mediums
  4. 7. security
  5. 9. server, user's identity