Dialogic® MD1 RJ-21 interface

The following illustration shows a Dialogic® MD1 RJ-21 male interface:

Pin assignments

The Dialogic® MD1 RJ-21 interface uses the following pin assignments:

Trunk

Transmit to network pin assignments

Receive from network pin assignments

Ring

Tip

Ring

Tip

1 and 9

1

26

2

27

2 and 10

3

28

4

29

3 and 11

5

30

6

31

4 and 12

7

32

8

33

5 and 13

9

34

10

35

6 and 14

11

36

12

37

7 and 15

13

38

14

39

8 and 16

15

40

16

41

Not used

17 through 25

42 through 50