Sound Powered Telephone Systems

  1. What is the most reliable means of communications onboard ship?
    Sound Powered Telephones
  2. How many CKTs does a S/P SWBD have?
    Many
  3. How many CKTs does a S/P switchbox have?
    1
  4. How many switches does a S/P switchbox have?
    10 or 20
  5. Which S/P headset is used in relatively quiet areas?
    H-200/U
  6. Which S/P headset is used in high noise areas?
    H-202/U
  7. What type is a S/P handset?
    H-203/U
  8. How many gangs do S/P jackboxes have?
    1, 2, or 4
  9. What are the 3 classifications of S/P CKTs?
    • Supplementary
    • Auxiliary
    • Primary
  10. What S/P classification is the primary means of communication?
    Primary
  11. What S/P CKT classification are CKTs JA to JZ?
    Primary
  12. What S/P CKT classification are CKTs XJA to XJZ?
    Auxiliary
  13. What S/P CKT duplicates certain primary CKTs?
    Auxiliary
  14. What S/P CKT classification are CKT's X1J to X61J?
    Supplementary
  15. Which S/P CKT type consists of jackboxes connected in parallel to a common line?
    String
  16. Which S/P CKT type provides a means of rigging emergency communications between vital stations after a casualty has occured?
    Casualty
  17. What type of S/P CKT is X40J?
    Casualty
  18. What type of S/P CKT is used for bridge to bridge communications during underwy replenishment-at-sea?
    High Line
  19. Where is the terminal board located, which connects the receivers, transmitter, and cord within the S/P headset?
    In the chestplate junction box
  20. What is the purpose of C1 in a S/P headset?
    Prevents the flow of direct currnt through the receivers when using a S/P amplifier
  21. What is the purpose of C2 in a S/P headset?
    • Provides for the power factor correction
    • Improves the acoustical quality of the set
  22. What is the sensitivity of the receiver and transmitter on a S/P headset?
    • Transmitter = 10 ohms
    • Receiver = 62 ohms
  23. How does a short effect a S/P CKT?
    Entire CKT inoperable
  24. How does an open affect a S/P CKT?
    No communications between one or more stations
Author
CVN68
ID
166803
Card Set
Sound Powered Telephone Systems
Description
Advancement
Updated