What is involved in a
typical phone system installation?
Typically most telephone
systems interface an existing office wiring or building wiring
through what is known as a telecom
66 block as shown in the schematic below. Most
telephone systems use either a two wire or four wire configuration
connecting the telephone system to the existing wiring.
Incoming lines interface the telephone system using two pairs for
each incoming line.
E System Sales, Inc. has
available what we call an
EZ install Cable & Block Kit that includes a telephone
system wiring schematic making installation of a telephone system
much easier for a typical do-it-yourself installer interested in
saving money installing the telephone system.
NOTE: The NEC Telephone
System for example uses 1 pair of wires on all incoming phone lines
and phone extensions. A
66 Block termination
punch down tool is also required for installation.
PC Admin programming is also
available for programming of most modern telephone systems using a
Windows based Personal Computer. A Windows 2000 or XP PC Computer
with an available USB or Ethernet port, PC Admin cable, and Windows
computer skills are required to perform phone system programming.
|
|
25 Pair Cable |
|
Block Term |
Color Code |
Function |
|
Cable
1 |
1
2
3
4
5
6
7
8 |
White-Blue
Blue-White
White-Orange
Orange-White
White-Green
Green-White
White-Brown
Brown-White |
300 T
300 R
301 T
301 R
302 T
302 R
303 T
303 R |
|
Cable
2 |
9
10
11
12
13
14
15
16 |
White-Slate
Slate-White
Red-Blue
Blue-Red
Red-Orange
Orange-Red
Red-Green
Green-Red |
304 T
304 R
305 T
305 R
306 T
306 R
307 T
307 R |
|
Cable
3 |
17
18
19
20
21
22
23
24 |
Red-Brown
Brown-Red
Red-Slate
Slate-Red
Black-Blue
Blue-Black
Black-Orange
Orange-Black |
308 T
308 R
309 T
309 R
310 T
310 R
311 T
311 R |
|
Cable
4 |
25
26
27
28
29
30
31
32 |
Black-Green
Green-Black
Black-Brown
Brown-Black
Black-Slate
Slate-Black
Yellow-Blue
Blue-Yellow |
312 T
312 R
313 T
313 R
314 T
314 R
315 T
315 R |
|
Cable
5 |
33
34
35
36
37
38
39
40 |
Yellow-Orange
Orange-Yellow
Yellow-Green
Green-Yellow
Yellow-Brown
Brown-Yellow
Yellow-Slate
Slate-Yellow |
Line 1T
Line 1R
Line 2T
Line 2R
Line 3T
Line 3R
Line 4T
Line 4R |
|
Cable
6 |
41
42
43
44
45
46
47
48 |
Violet-Blue
Blue-Violet
Violet-Orange
Orange-Violet
Violet-Green
Green-Violet
Violet-Brown
Brown-Violet |
Line 5T
Line 5R
Line 6T
Line 6R
Line 7T
Line 7R
Line 8T
Line 8R |
| |
49
50 |
Violet-Slate
Slate-Violet |
NC
NC |
|
