Cable with color coding identification of groups

A telecommunications cable comprising a plurality of twisted pairs of conductors arranged in a number of groups and the groups arranged in at least two units with at least two groups in a unit, the conductor pairs in a group having a colour coding unique to that group, each group having at least twenty five twisted pairs of conductors;

• said colour coding comprising a preselected common colour identification common to one conductor of each pair in a group and the other conductor of each pair having a colour identification which is one of a predetermined number of different colour identifications clearly distinguishable from said common colour identification and defining, in conjunction with said common colour identification of said one conductor, the twist type for each pair in said group, the number of twist types in a group less than the numbers of pairs of conductors in the group, a group identified only by said common colour identification, and a different common colour identification for each group in a unit;
• and
• a binder around each unit;
• any one pair of conductors in a unit having a particular twist type being separated from any other pair of conductors having the same twist type by a minimum distance of the order of two pairs of conductors.