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Telecommunications |
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Testing, Repairing and Installing Home telephone Wiring - Telephone Wire
Telephone Wire The dial tone arrives at your home on two wires which are typically twisted together to form a “twisted pair.” While twisted pairs can be bunched together to form large cables, by the time the connection reaches your home, it has typically been reduced to an aerial drop wire (which contain 1 to 6 pair), or a buried drop wire (which contain 1 to 6 pair). In order to tell the various wires and pairs apart, there is an industry standard color coding system. Be aware, however, depending on who installed the wire, there may be variances. However, if a professional installed the wiring, they should have followed this color coding system. Your single-line phone system will work properly when the wire color pattern is consistent with each wire secured to its proper terminal on a jack or spliced to the same color (as in a junction block where a system branches). This table identifies wire connections on jack terminals and pair identifications for splicing. TABLE B: WIRE CONNECTION AND CODING CHART
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