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CTP2000 FXS and FXO Interface Module Cables and Pinouts

 

Required Cables

The CTP2000 2W-FXS and 2W-FX0 interface modules require the use of double-shielded cables (copper braid plus aluminum mylar foil) to ensure EMI Compliance.

RTM Pinout Locations

Figure 29 shows the pinout locations for both the CTP2000 2W-FXS and 2W-FXO interface modules.

Figure 29: RTM Pinouts for CTP2000 2W-FXS and 2W-FXO Interface Modules
RTM Pinouts for CTP2000 2W-FXS
and 2W-FXO Interface Modules

FXS Connector Pinouts

The RTM for the CTP2000 2W-FXS interface module uses a RJ-21 25-pair Telco connector labeled A. The A connector has 24 FXS ports.

FXS R is connected to FXO T; FXS T is connected to FXO T.

Table 13 lists the RTM pinouts for the FXS module.

Table 13: CTP2000 FXS Connector Pinouts on the RTM

Pin

Signal

Signal

Pin

1

Port 0 R

Port 0 T

26

2

Port 1 R

Port 1 T

27

3

Port 2 R

Port 2 T

28

4

Port 3 R

Port 3 T

29

5

Port 4 R

Port 4 T

30

6

Port 5 R

Port 5 T

31

7

Port 6 R

Port 6 T

32

8

Port 7 R

Port 7 T

33

9

Port 8 R

Port 8 T

34

10

Port 9 R

Port 9 T

35

11

Port 10 R

Port 10 T

36

12

Port 11 R

Port 11 T

37

13

Port 12 R

Port 12 T

38

14

Port 13 R

Port 13 T

39

15

Port 14 R

Port 14 T

40

16

Port 15 R

Port 15 T

41

17

Port 16 R

Port 16 T

42

18

Port 17 R

Port 17 T

43

19

Port 18 R

Port 18 T

44

20

Port 19 R

Port 19 T

45

21

Port 20 R

Port 20 T

46

22

Port 21 R

Port 21 T

47

23

Port 22 R

Port 22 T

48

24

Port 23 R

Port 23 T

49

FXO Connector Pinouts

The RTM for the CTP2000 2W-FXO interface module uses a RJ-21 25-pair Telco connector labeled A. The A connector has 24 FXS ports.

FXO T is connected to FXS R; FXO T is connected to FXS T.

Table 14 lists the RTM pinouts for the FXO module.

Table 14: CTP2000 FXO Connector Pinouts on the RTM

Pin

Signal

Signal

Pin

1

Port 0 T

Port 0 R

26

3

Port 1 T

Port 1 R

28

5

Port 2 T

Port 2 R

30

7

Port 3 T

Port 3 R

32

9

Port 4 T

Port 4 R

34

11

Port 5 T

Port 5 R

36

13

Port 6 T

Port 6 R

38

15

Port 7 T

Port 7 R

40

17

Port 8 T

Port 8 R

42

19

Port 9 T

Port 9 R

44

21

Port 10 T

Port 10 R

46

23

Port 11 T

Port 11 R

48