25-pair color code
FORM OF COLOR CODE USED IN WIRING
25 pair cable; 25 pair color code; 25-pair colour code; Even-count color code; Even-count colour code; 25 pair colour code
The 25-pair color code, originally known as even-count color code,AT&T, Bell System Practices, Section 461-200-101 Issue 7, Connector Cables—Identification (May 1979) is a color code used to identify individual conductors in twisted-pair wiring for telecommunications.