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H839ASPB

Part #:

Module #: H839ASPB

Price: US$ 0

Availability: In Stock

* Online Price may be wrong or outdated and can NOT be used as proof by anyone or any organization for any purpose.

H838ASPB and H839ASPB Board Description

H838ASPB and H839ASPB are 64-channel POTS service boards that provide the POTS access service.

Functions and Specifications

For details, see Voice Service Boards Specifications.

 NOTE:

Compared with H838ASPB, H839ASPB supports direct current-isolated (DC-I) grounding.

Power Consumption

For details, see Board Power Consumption.

Working Principles

Figure 1 shows working principles of the H838ASPB and H839ASPB boards.

Figure 1 Working principles of the H838ASPB and H839ASPB boards

Basic working principles of the H838ASPB and H839ASPB boards are as follows:

  • The codec module encodes and decodes voice signals and converts analog signals to digital signals.

  • The subscriber-line interface module provides access to 64 channels of POTS services.

  • The protection module protects and isolates these boards from lightning strikes.

  • The MCU module processes the upper-layer protocol messages between these boards and the control board and manages user ports on these boards.

  • The power module supplies power to other function modules of these boards.

Front Panel Port



Indicator

Indicator

Name

Color

Status

Meaning

RUN ALM

Running status indicator

Green

On

The board is running properly.

Red

On

The board is faulty.

Pin Assignments

Table 1 describes pin assignments of the PSTN0 port on the front panel of the H838ASPB or H839ASPB board.

Table 1 Pin assignments of the PSTN0 port

Pin

Signal

Pin

Signal

Port

Pin

Signal

Pin

Signal

64

15

48

7

32

16

16

24

63

47

31

15

62

14

46

6

30

17

14

25

61

45

29

13

60

13

44

5

28

18

12

26

59

43

27

11

58

12

42

4

26

19

10

27

57

41

25

9

56

11

40

3

24

20

8

28

55

39

23

7

54

10

38

2

22

21

6

29

53

37

21

5

52

9

36

1

20

22

4

30

51

35

19

3

50

8

34

0

18

23

2

31

49

33

17

1

Table 2 describes pin assignments of the PSTN1 port on the front panel of the H838ASPB or H839ASPB board.

Pin

Signal

Pin

Signal

Port

Pin

Signal

Pin

Signal

Table 2 Pin assignments of the PSTN1 port

Pin

Signal

Pin

Signal

Port

Pin

Signal

Pin

Signal

64

47

48

39

32

48

16

56

63

47

31

15

62

46

46

38

30

49

14

57

61

45

29

13

60

45

44

37

28

50

12

58

59

43

27

11

58

44

42

36

26

51

10

59

57

41

25

9

56

43

40

35

24

52

8

60

55

39

23

7

54

42

38

34

22

53

6

61

53

37

21

5

52

41

36

33

20

54

4

62

51

35

19

3

50

40

34

32

18

55

2

63

49

33

17

1