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目前在通信方面，在這么通信工程的時(shí)候，遇到不少企業(yè)在租借E1（2M）線路利用PCM設(shè)備傳輸語音電話、音頻等業(yè)務(wù)。可能大部分企業(yè)只對(duì)E1線路帶寬了解，而E1線路的具體知識(shí)點(diǎn)還是不太了解。1、一條E1是2.048M的鏈路，用PCM編碼。2、一個(gè)E1的幀長(zhǎng)為256個(gè)bit,分為32個(gè)時(shí)隙，一…
2024-4-26 22:07:55[未知IP0801]網(wǎng)友
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2024-4-26 21:58:03[未知IP0801]網(wǎng)友
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2024-4-26 21:47:49[未知IP0801]網(wǎng)友
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2024-4-26 21:26:36[未知IP0801]網(wǎng)友
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2024-4-26 21:10:01[未知IP0801]網(wǎng)友
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2024-4-26 20:33:41[未知IP0801]網(wǎng)友
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2024-4-26 20:12:53[未知IP0801]網(wǎng)友
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2024-4-26 19:10:47[未知IP0801]網(wǎng)友
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