Volume Ii Part 26 (1/2)

27. What is the busy signal?

28. What determines the size of a multiple switchboard?

29. What is the use of the intermediate distributing frame?

30. Make diagram of the series magneto multiple switchboard and describe its operation.

31. What are the defects of this system?

32. Give a diagram of the branch terminal magneto multiple switchboard.

33. Give a diagram and a short description of the Monarch magneto multiple switchboard.

REVIEW QUESTIONS

ON THE SUBJECT OF TELEPHONY

PAGES 69--134

1. Sketch and describe the line circuit of the common-battery multiple switchboard of the Bell companies.

2. Make a diagram of the cord circuit of the Western Electric standard multiple common-battery switchboard.

3. Describe the busy test in this system.

4. What is the function of the order-wire circuits?

5. What is jumper wire?

6. Give a short description of the relay mounting in the standard No. 1 relay board of the Western Electric Company.

7. What is the ultimate capacity of the No. 1 Western Electric switchboard?

8. What is the capacity of the No. 10 Western Electric switchboard?

9. How does this switchboard No. 10 differ from No. 1?

10. Give a diagram of the two-wire line circuit of the Kellogg Company.

11. What is the capacity of the condenser of the cord circuit in the foregoing system?

12. Give a complete diagram of the Kellogg two-wire board.

13. Describe the busy test in this system.