Mike's PBX Cookbook

Norstar ICS Wiring Charts

The following wiring charts describe the three ICS connectors: 1, 2, and 3, as shown below.


1. ICS telephone (extns) wiring chart

T and R represent station connections and should not be confused with Tip and Ring on external lines.
Station connections are non-polarized.

Pin Colour Wire colour Port Service Telephones Default DN
26
1
White-Blue
Blue-White
101
T
R
1
21/221/2221
27
2
White-Orange
Orange-White
102 T
R
2 22/222/2222
28
3
White-Green
Green-White
103 T
R
3 23/223/2223
29
4
White-Brown
Brown-White
104 T
R
4 24/224/2224
30
5
White-Slate
Slate-White
105 T
R
5 25/225/2225
31
6
Red-Blue
Blue-Red
106 T
R
6 26/226/2226
32
7
Red-Orange
Orange-Red
107 T
R
7 27/227/2227
33
8
Red-Green
Green-Red
108 T
R
8 28/228/2228
34
9
Red-Brown
Brown-Red
109 T
R
9 29/229/2229
35
10
Red-Slate
Slate-Red
110 T
R
10 30/230/2230
36
11
Black-Blue
Blue-Black
111 T
R
11 31/231/2231
37
12
Black-Orange
Orange-Black
112 T
R
12 32/232/2232
38
13
Black-Green
Green-Black
113 T
R
13 33/233/2233
39
14
Black-Brown
Brown-Black
114 T
R
14 34/234/2234
40
15
Black-Slate
Slate-Black
115 T
R
15 35/235/2235
41
16
Yellow-Blue
Blue-Yellow
116 T
R
16 36/236/2236
42
17
Yellow-Orange
Orange-Yellow
117 T
R
17 37/237/2237
43
18
Yellow-Green
Green-Yellow
118 T
R
18 38/238/2238
44
19
Yellow-Brown
Brown-Yellow
119 T
R
19 39/239/2239
45
20
Yellow-Slate
Slate-Yellow
120 T
R
20 40/240/2240
46
21
Violet-Blue
Blue-Violet
121 T
R
21 41/241/2241
47
22
Violet-Orange
Orange-Violet
122 T
R
22 42/242/2242
48
23
Violet-Green
Green-Violet
123 T
R
23 43/243/2243
49
24
Violet-Brown
Brown-Violet
124 T
R
24 44/244/2244
50
25
Violet-Slate
Slate-Violet
---- ---- no connection ----

 

2. ICS telephone and auxiliary equipment wiring chart

T and R represent station connections and should not be confused with Tip and Ring on external lines.
Station connections are non-polarized.

Pin Colour Wire colour Port Service Telephones Default DN
26
1
White-Blue
Blue-White
125 T
R
25 45/245/2245
27
2
White-Orange
Orange-White
126 T
R
26 46/246/2246
28
3
White-Green
Green-White
127 T
R
27 47/247/2247
29
4
White-Brown
Brown-White
128 T
R
28 48/248/2248
30
5
White-Slate
Slate-White
129 T
R
29 49/249/2249
31
6
Red-Blue
Blue-Red
130 T
R
30 50/250/2250
32
7
Red-Orange
Orange-Red
131 T
R
31 51/251/2251
33
8
Red-Green
Green-Red
132 T
R
32 52/252/2252
34
9
Red-Brown
Brown-Red
---- ---- no connection  
35
10
Red-Slate
Slate-Red
---- ---- no connection  
36
11
Black-Blue
Blue-Black
---- ---- no connection  
37
12
Black-Orange
Orange-Black
---- ---- no connection  
38
13
Black-Green
Green-Black
---- ---- no connection  
39
14
Black-Brown
Brown-Black
---- ---- no connection  
40
15
Black-Slate
Slate-Black
  T
R
Page
 
41
16
Yellow-Blue
Blue-Yellow
  Make
Common
External page
External page
 
42
17
Yellow-Orange
Orange-Yellow
  T
R
Music  
43
18
Yellow-Green
Green-Yellow
---- ---- reserved  
44
19
Yellow-Brown
Brown-Yellow
  Make
Common
Auxiliary ringer  
45
20
Yellow-Slate
Slate-Yellow
---- ---- reserved  
46
21
Violet-Blue
Blue-Violet
---- ---- no connection  
47
22
Violet-Orange
Orange-Violet
---- ---- reserved  
48
23
Violet-Green
Green-Violet
---- ---- reserved  
49
24
Violet-Brown
Brown-Violet
---- ---- reserved  
50
25
Violet-Slate
Slate-Violet
---- ---- reserved  

 

3. ICS external loop start lines wiring

Pin Colour Wire colour Port Service Telephones
26
1
White-Blue
Blue-White
201 T
R
1
27
2
White-Orange
Orange-White
202 T
R
2
28
3
White-Green
Green-White
---- ---- ----
29
4
White-Brown
Brown-White
---- ---- ----
30
5
White-Slate
Slate-White
203 T
R
3
31
6
Red-Blue
Blue-Red
204 T
R
4
32
7
Red-Orange
Orange-Red
---- ---- ----
33
8
Red-Green
Green-Red
---- ---- ----
34
9
Red-Brown
Brown-Red
225 T
R
25
35
10
Red-Slate
Slate-Red
226 T
R
26
36
11
Black-Blue
Blue-Black
---- ---- ----
37
12
Black-Orange
Orange-Black
---- ---- ----
38
13
Black-Green
Green-Black
227 T
R
27
39
14
Black-Brown
Brown-Black
228 T
R
28
40
15
Black-Slate
Slate-Black
---- ---- ----
41
16
Yellow-Blue
Blue-Yellow
---- ---- ----
42
17
Yellow-Orange
Orange-Yellow
---- ---- ----
43
18
Yellow-Green
Green-Yellow
---- T
R
ET1
44
19
Yellow-Brown
Brown-Yellow
---- T
R
ET2
45
20
Yellow-Slate
Slate-Yellow
---- ---- ----
46
21
Violet-Blue
Blue-Violet
---- ---- ----
47
22
Violet-Orange
Orange-Violet
---- ---- ----
48
23
Violet-Green
Green-Violet
---- ---- ----
49
24
Violet-Brown
Brown-Violet
---- ---- ----
50
25
Violet-Slate
Slate-Violet
---- ---- ----

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