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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(fù)極的區(qū)別。至于聽筒的四芯線…
2024-4-30 11:25:28[未知IP0801]網(wǎng)友
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