Why are Tinned Copper Conductors used in Central Office designs?

February 4, 2020

Historically, cable with tin copper conductors were selected and terminated in Central Offices by soldering the wire to a distribution frame terminal. As soldering has decreased, the tin copper conductor for this application has remained. Today tinned conductors are preferred to wire wrap onto tinned binding posts on various transmission pieces of equipment within central offices, remote terminals and premise telephone wire rooms. Tinned copper conductors with their associated insulation materials provide outstanding stripability, flexibility, and resistance to corrosion along with a gas–tight connection, which is electrically equivalent to a soldered connection from the past.

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