DG - Wiring Chart (DGHb and DGS)

On the UCx Digital Gateway (DGHb) and BCM50 Digital Gateway (DGS), you can connect 4 analog devices and 12 Nortel digital telephones to the RJ-21 telephony connector on the system's main unit.

The following table provides information about the wiring of the RJ-21 telephony connector:

Pair

Pins (Tip/Ring)

Wire colors (Tip/Ring)

Device type

Port

1

26 / 1

White-Blue / Blue-White

Analog trunk

1

2

27 / 2

White-Orange / Orange-White

Analog trunk

2

3

28 / 3

White-Green / Green-White

Analog trunk

3

4

29 / 4

White-Blue / Blue-White

Analog trunk

4

5

30 / 5

White-Slate / Slate-White

Analog device

1

6

31 / 6

Red-Blue / Blue-Red

Analog device

2

7

32 / 7

Red-Orange / Orange-Red

Analog device

3

8

33 / 8

Red-Green / Green-Red

Analog device

4

9

34 / 9

Red-Brown / Brown-Red

No connection

 

10

35 / 10

Red-Slate / Slate-Red

Auxiliary Ringer

 

11

36 / 11

Black-Blue / Blue-Black

Page Relay

 

12

37 / 12

Black-Orange / Orange-Black

Page Output

 

13

38 / 13

Black-Green / Green-Black

Music source

 

14

39 / 14

Black-Brown / Brown-Black

Digital phone

12

15

40 / 15

Black-Slate / Slate-Black

Digital phone

11

16

41 / 16

Yellow-Blue / Blue-Yellow

Digital phone

10

17

42 / 17

Yellow-Orange / Orange-Yellow

Digital phone

9

18

43 / 18

Yellow-Green / Green-Yellow

Digital phone

8

19

44 / 19

Yellow-Brown / Brown-Yellow

Digital phone

7

20

45 / 20

Yellow-Slate / Slate-Yellow

Digital phone

6

21

46 / 21

Violet-Blue / Blue-Violet

Digital phone

5

22

47 / 22

Violet-Orange / Orange-Violet

Digital phone

4

23

48 / 23

Violet-Green / Green-Violet

Digital phone

3

24

49 / 24

Violet-Brown / Brown-Violet

Digital phone

2

25

50 / 25

Violet-Slate / Slate-Violet

Digital phone

1

The following is an example of a Wiring-Field Card (WFC) that may be used to connect to the RJ-21 connector.