Cisco 7000 Series Hardware Installation And Maintenance page 182

APPENDIX
ndustryStandard
When
has devised
The scheme
for
wiring
For
groups
white red black yellow and
brown
Each
of
its
reversed
confused
more few
than
you install
the telephone
for industry
codesone
two
uses color
numbers which
smaller of
that
scheme whenever
possible
numbers
of each
wires
large
what
of five resulting
in
violet
and
slate
must have
color
pair unique
and
color of
group
stripes
Table C-i the
lists sequences
Plans
Wiring
face
problem
terminals you the
scheme
uniform for dealing with
numbers
of wires
for
large
can be
also in
organized pairs
two-color
is assigned
pair
25
called of
bender-group
is
The
colors used for pair
One
combination
wire within
within group
the color
pair
Note red-brown
that
the
of organizing
wiring
numbers
of
large
and
in pairs
organized
We
recommend
the use of
code The
colors selected
are
The
colors used
pairs for
group
within are blue orange
each has
solid background
pair
and
second wire has the colors
the
be
and wires
red-orange can
Industry-Standard
ATT
wires
the other
this
from two
are
group
green
easily
Plans C-i
Wiring