| More than 25
pairs? Now it's time for colored pair wrapping. Usually
cabling vendors use two flat plastic strips, helically
wrapped around each group of 25 pairs. Each strip is
colored. First strip uses one of five tip colors. Second
strip uses one of five ring colors. So wrap number equals
to pair number with the same combination of tip and ring
colored conductors. In general, the formula looks like pair
number = 25*wrap # plus pair # in this
particular bundle as per 25 pairs color coding
table
When the cable's pair count exceeds 600, bundles are
grouped into super bundles. Every super bundle uses
wrapping, colored with one of first three tip colors. It
gives color codes for cables with up to 1800 pairs. For
real big cables, having more than 1800 pairs,
vendor-specific color coding is used. Example: pair #45 -
yellow/grey pair in the orange/white wrapped bundle.
45 |
 |
 |
(UL LISTED) CMR
24/050 |
Pairs
numbered 1 to 125
| pairs |
figure |
wrap #1 |
wrap #2 |
1
.
.
25 |
|
white |
blue |
26
.
.
50 |
|
white |
orange |
51
.
.
75 |
|
white |
green |
76
.
.
100 |
|
white |
brown |
101
.
.
125 |
|
white |
grey |
| pairs |
figure |
wrap #1 |
wrap #2 |
|
