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2-wire analogue voice band interfaces; Multiple line terminal equipment specific characteristics 2线模拟声带接口;多线终端设备特定特性
发布日期: 1998-10-01
本ETSI指南(EG)规定了单终端设备(TE)提供的技术特性(电气接口要求),该设备旨在通过一个以上的2线或4线模拟声带接口(专用或公用、交换或租用线路网络)连接到网络,只要它们是多线路设施特有的。参考文件:prTBR21,ETS 300 439
This ETSI Guide (EG) specifies the technical characteristics (electrical interface requirements) to be provided by a single Terminal Equipment (TE) which is intended for connection to a network via more than one 2- or 4- wire analogue voice band interfaces, (private or public, switched or leased line network), insofar as they are particular to the Multi Line facility. Reference Documents: prTBR21, ETS 300 439
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ETSI TR 101 149
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1998-05-01
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ETSI EN 300 450
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ETSI EN 300 448
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ETSI EN 300 449
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UNE-ETS 300450-1997
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商业电信(BTC) 普通和特殊质量语音带宽双线模拟租用线路(A2O和A2S) 终端设备接口
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Public Switched Telephone Network (PSTN); 2-wire analogue voice band switched interfaces; Timed break recall (register recall); Specific requirements for terminals
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ETSI TBR 015
Business TeleCommunications (BTC); Ordinary and Special quality voice bandwidth 2-wire analogue leased lines (A2O and A2S); Attachment requirements for terminal equipment interface
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UNE-TBR 15-1997
BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE BANDWIDTH 2-WIRE ANALOGUE LEASED LINES (A2O AND A2S). ATTACHMENT REQUIrements for terminal equipment interface.
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DIN EN 300450
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接入和终端(AT).普通和特殊质量语音带宽双线模拟租用线路(A2O和A2S).终端设备接口(作为德国标准认可英文版EN 300450 V 1.2.1(2001-07))
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DIN EN 300448
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接入和终端(AT).普通质量语音带宽2线模拟租用线路(A2O).连接特性和网络接口表示(作为德国标准认可英文版EN 300448 V 1.2.1(2001-07))
2002-01-01
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DIN EN 300449
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接入和终端(AT).特殊质量语音带宽2线模拟租用线路(A2S).连接特性和网络接口表示(作为德国标准认可英文版EN 300449 V 1.2.1(2001-07))
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