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现行 UNE-ETS 300448:1997
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BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY QUALITY VOICE BANDWIDTH 2-wire analogue leased line (A20). Connection characteristics and network interface presentation. 商业电信(BTC) 普通质量语音带宽双线模拟租用线路(A20) 连接特征和网络接口演示
发布日期: 1997-11-20
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发布单位或类别: 西班牙-西班牙标准
关联关系
研制信息
相似标准/计划/法规
现行
UNE-ETS 300450-1997
BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE BANDWIDTH 2-WIRE ANALOGUE LEASED LINES (A2O AND A2S). TERMINAL EQUIPMENT INTERFACE.
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
1997-11-20
现行
ETSI ETS 300 450
Business TeleCommunications (BTC); Ordinary and Special quality voice bandwidth 2-wire analogue leased lines (A2O and A2S); Terminal equipment interface
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
1996-02-01
现行
ETSI ETS 300 448
Business TeleCommunications (BTC); Ordinary quality voice bandwidth 2-wire analogue leased line (A2O); Connection characteristics and network interface presentation
商业电信(BTC);普通质量语音带宽双线模拟租用线(A2O);连接特性和网络接口演示
1996-02-01
现行
UNE-ETS 300451-1997
BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY QUALITY VOICE BANDWIDTH 4-wire analogue leased line (A40). Connection characteristics and network interface presentation.
商业电信(BTC) 普通质量语音带宽4线模拟租用线路(A40) 连接特征和网络接口演示
1997-11-20
现行
ETSI ETS 300 453
Business TeleCommunications (BTC); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Terminal equipment interface
商业电信(BTC);普通和特殊质量的语音带宽四线模拟租用线路(A4O和A4S);终端设备接口
1996-02-01
现行
ETSI ETS 300 451
Business TeleCommunications (BTC); Ordinary quality voice bandwidth 4-wire analogue leased line (A4O); Connection characteristics and network interface presentation
商业电信(BTC);普通质量语音带宽四线模拟租用线(A4O);连接特性和网络接口演示
1996-02-01
现行
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
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);终端设备接口附件要求
1997-01-01
现行
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.
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) 终端设备接口的附件要求
1997-07-15
现行
ETSI TBR 017
Business TeleCommunications (BTC); Ordinary and Special quality voice bandwidth 4-wire analogue leased lines (A4O and A4S); Attachment requirements for terminal equipment interface
商业电信(BTC);普通和特殊质量的语音带宽四线模拟租用线路(A4O和A4S);终端设备接口附件要求
1997-01-01
现行
UNE-TBR 17-1997
BUSINESS TELECOMMUNICATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE bandwidth 4-wire analogue leased lines (A4O and A4S). Attachment requirements for terminal equipment interface.
商业电信(BTC) 普通和特殊质量的语音带宽四线模拟租用线路(A4O和A4S) 终端设备接口的附件要求
1997-07-15
现行
UNE-ETS 300453-1997
BUSINESS TELECOMMUNCATIONS (BTC). ORDINARY AND SPECIAL QUALITY VOICE BANDWIDTH 4-WIRE ANALOGUE LEASED LINES (A4O AND A4S). TERMINAL EQUIPMENT INTERFACE.
商业电信(BTC) 普通和特殊质量的语音带宽四线模拟租用线路(A4O和A4S) 终端设备接口
1997-11-20
现行
ETSI ETS 300 449
Business TeleCommunications (BTC); Special quality voice bandwidth 2-wire analogue leased line (A2S); Connection characteristics and network interface presentation
商业电信(BTC);特殊质量语音带宽双线模拟租用线路(A2S);连接特性和网络接口演示
1996-02-01
现行
UNE-ETS 300449-1997
BUSINESS TELECOMMUNICATIONS (BTC). SPECIAL QUALITY VOICE BANDWIDTH 2-Wire analogue leased line (A2S). Connection characteristics and network interface presentation.
商业电信(BTC) 特殊质量语音带宽双线模拟租用线路(A2S) 连接特征和网络接口演示
1997-11-20
现行
ETSI ETS 300 452
Business TeleCommunications (BTC); Special quality voice bandwidth 4-wire analogue leased line (A4S); Connection characteristics and network interface presentation
商业电信(BTC);特殊质量语音带宽四线模拟租用线路(A4S);连接特性和网络接口演示
1996-02-01