User's Manual

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Table Of Contents

EX7100 Technical Manual - Appendix A

A.6 Line Interface

The 50-way Champ socket is internally wired to allow for any of the three terminal

configurations (2-wire Exchange, 4-wire Exchange, and Subscriber). The table below

shows pin allocation and interface cable wire colours for the three variants.

Note: The colour indicated first is the main wire colour, the colour indicated second is the

stripe.

Number

Cable wire colour 2-wire Exchange

(A - Tip, B - Ring)

4-wire+E&M Exchange Subscriber

(A - Tip, B - Ring)

1 Blue/White Channel 1 (B-leg) - Channel 1 (B-leg)

2 Orange /White - Channel 1IN (B) -

3 Green/White - Channel 1 OUT (B) -

4 Brown/White - Channel 1 M-wire -

5 Slate/White Channel 2 (B-leg) - Channel 2 (B-leg)

6 Blue/Red - Channel 2 IN (B) -

7 Orange/Red - Channel 2 OUT (B) -

8 Green/Red - Channel 2 M-wire -

9 Brown/Red Channel 3 (B-leg) - Channel 3 (B-leg)

10 Slate/Red - Channel 3 IN (B) -

11 Blue/Black - Channel 3 OUT (B) -

12 Orange/Black - Channel 3 M-wire -

13 Green/Black Channel 4 (B-leg) - Channel 4 (B-leg)

14 Brown/Black - Channel 4 IN (B) -

15 Slate/Black - Channel 4 OUT (B) -

16 Blue/Yellow - Channel 4 M-wire -

17 Orange/Yellow Channel 5 (B-leg) - Channel 5 (B-leg)

18 Green/Yellow - Channel 5 IN (B) -

19 Brown/Yellow - Channel 5 OUT (B) -

20 Slate/Yellow - Channel 5 M-wire -

21 Blue/Violet Channel 6 (B-leg) - Channel 6 (B-leg)

22 Orange/Violet - Channel 6 IN (B) -

23 Green/Violet - Channel 6 OUT (B) -

24 Brown/Violet - Channel 6 M-wire -

25 Slate/Violet Ground Ground Ground

26 White/Blue Channel 1 (A-leg) - Channel 1 (A-leg)

27 White/Orange - Channel 1 IN (A) -

28 White/Green - Channel 1 OUT (A) -

29 White/Brown - Channel 1 E-wire -

30 White/Slate Channel 2 (A-leg) - Channel 2 (A-leg)

31 Red/Blue - Channel 2 IN (A) -

32 Red/Orange - Channel 2 OUT (A) -

33 Red/Green - Channel 2 E-wire -

34 Red/Brown Channel 3 (A-leg) - Channel 3 (A-leg)

35 Red/Slate - Channel 3 IN (A) -

36 Black/Blue - Channel 3 Out (A) -

37 Black/Orange - Channel 3 E-wire -

38 Black/Green Channel 4 (A-leg) - Channel 4 (A-leg)

39 Black/Brown - Channel 4 IN (A) -

40 Black/Slate - Channel 4 OUT (A) -

41 Yellow/Blue - Channel 4 E-wire -

42 Yellow/Orange Channel 5 (A-leg) - Channel 5 (A-leg)

43 Yellow/Green - Channel 5 IN (A) -

44 Yellow/Brown - Channel 5 OUT (A) -

45 Yellow/Slate - Channel 5 E-wire -

46 Violet/Blue Channel 6 (A-leg) - Channel 6 (A-leg)

47 Violet/Orange - Channel 6 IN (A) -

48 Violet/Green - Channel 6 OUT (A) -

49 Violet/Brown - Channel 6 E-wire -

50 Violet/Slate Ground Ground Ground