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大家都知道電話光端機配件用到的不只是電話,還有電話線,那么電話線兩芯和四芯有區(qū)別嗎?電話線一般分為2芯,4芯,(4芯適用于公司或部分集團電話使用),6芯(6芯適用于數(shù)字電話使用)。 兩芯標(biāo)準(zhǔn)的電話水晶頭是RJ32。分別稱為A線、B線,沒有正負極的區(qū)別。至于聽筒的四芯線…
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