automwiringspotImage: automwiringspotAttach the white/blue pair to the posts or slots in the NI. Back at the jack location,attach your modular telephone jack to the wall. The inside of the jack will have short colored wiresgoing from the screws to the pins of the jack,probably red/green and yellow/black. How to Wire a Phone Jack: 9 Steps (with Pictures) - wikiHow Is this answer helpful?Thanks!Give more feedbackThanks!How can it be improved?How can the answer be improved?Tell us how Modular connector - Wikipedia OverviewNomenclatureHistoryGenderLatching tab and orientationSize and contactsA modular connector is a type of electrical connector for cords and cables of electronic devices and appliances, such in computer networking, telecommunication equipment, and audio headsets. Modular connectors were originally developed for use on specific Bell System telephone sets in the 1960s, and similar types found use for simple interconnection of customer-provided telephone subscriber premises equipment to the telephone network. The Federal Communication Commission mandated in 1976 an inteSee more on enpedia · Text under CC-BY-SA license How to Wire a Phone Jack (Voice or Telephone RJ-11 thru RJ-14) How to Wire a Phone Jack (Voice or Telephone RJ-11 thru RJ-14) (USOC Wiring Diagram) Telephone wiring for a phone outlet is typically either 1, 2 or 3 pairs (2, 4, or 6 conductor). Most cable nowadays is UTP (unshielded twisted pair). There may be instances where you may need to connect to or transpose from the old "quad" cable.