Cellular Phone: Diagrams

Multi-Pin Connector on Transceiver, Assignment





1. Voltage supply terminal 30, positive

2. Voltage supply, terminal 31, negative

3. Telephone ON

4. not used

5. not used

6. not used

7. not used

8. LF audio signal, output, positive

9. LF audio signal, output, negative

10. Shielding, terminal 31

11. Microphone input signal, positive

12. Microphone input signal, negative

13. not used

14. not used

15. Bus K-lead

16. Mute

17. CAN bus High

18. CAN bus Low

19. not used

20. not used

21. not used

22. not used

23. not used

24. not used

25. not used

26. not used

27. not used

28. not used

29. not used

30. not used

31. not used

32. not used

33. not used

34. not used

35. not used

36. not used

37. switched positive, terminal 30, for charging telephone battery

38. not used

39. Terminal 31, negative

40. not used

41. Mobile telephone interface, terminal 30

42. Microphone output signal, positive

43. Microphone output signal, negative

44. Shielding, terminal 31

45. LF audio signal, input, positive

46. LF audio signal, input, negative

47. Activation wire, communication to telephone cradle

48. not used

49. Serial transmission TX, communication to telephone cradle, positive

50. Serial transmission TX, communication to telephone cradle, negative

51. Serial transmission RX, communication to telephone cradle, positive

52. Serial transmission RX, communication to telephone cradle, negative

53. not used

54. not used