ETSI EN 300 420
Access and Terminals (AT); 2 048 kbit/s digital structured leased lines (D2048S); Terminal equipment interface
接入和终端（AT）；2048kbit/s数字结构租用线路（D2048S）；终端设备接口
2001-07-01
ETSI ETS 300 420
Business TeleCommunications (BTC); 2 048 kbit/s digital structured leased lines (D2048S); Terminal equipment interface
商业电信（BTC）；2048kbit/s数字结构租用线路（D2048S）；终端设备接口
1995-11-01
ETSI TBR 013
Business TeleCommunications (BTC); 2 048 kbit/s digital structured leased lines (D2048S); Attachment requirements for terminal equipment interface
商业电信（BTC）；2048kbit/s数字结构租用线路（D2048S）；终端设备接口附件要求
1996-01-01
ETSI EN 300 248
Access and Terminals (AT); 2 048 kbit/s digital unstructured leased line (D2048U); Terminal equipment interface
接入和终端（AT）；2048kbit/s数字非结构化专线（D2048U）；终端设备接口
2001-07-01
TB/T 2676.1-1995
2048kbit/s30路脉码调制铁路通信设备终端机技术要求
1996-04-24
UNE-ETS 300420-1999
BUSINESS TELECOMMUNICATIONS (BTC). 2 048 KBIT/S DIGITAL STRUCTURED LEASED LINE (D2048S). TERMINAL EQUIPMENT INTERFACE.
商业电信（BTC） 2 048 KBIT/S数字结构租用线路（D2048S） 终端设备接口
1999-01-11
UNE-TBR 13-1998
BUSINESS TELECOMMUNICATIONS (BTC). 2048 KBIT/S DIGITAL STRUCTURED LEASED LINES (D2048S). ATTACHMENT REQUIREMENTS FOR TERMINAL EQUIPMENT INTERFACE.
商业电信（BTC） 2048 KBIT/S数字结构化租用线路（D2048S） 终端设备接口的附件要求
1998-06-30
DIN EN 300420
Access and Terminals (AT) - 2048 kbit/s digital structured leased lines (D2048S) - Terminal equipment interface (Endorsement of the English version EN 300420 V 1.2.1 (2001-07) as German Standard)
接入和终端（AT）.2048 kbit/s数字结构租用线路（D2048S）.终端设备接口（作为德国标准认可英文版EN 300420 V 1.2.1（2001-07））
2002-01-01
DIN EN 300248
Access and Terminals (AT) - 2048 kbit/s digital unstructured leased line (D2048U) - Terminal equipment interface (Endorsement of the English version EN 300248 V 1.2.1 (2001-07) as German Standard)
接入和终端（AT）.2048 kbit/s数字非结构化租用线路（D2048U）.终端设备接口（认可英文版EN 300248 V 1.2.1（2001-07）为德国标准）
2002-01-01
EC 521-1997
97/521/EC: Commission Decision of 9 July 1997 on a common technical regulation for the attachment requirements for the terminal equipment interface for connection to 2 048 kbit/s digital structured ONP leased lines (Text with EEA relevance)
97/521/EC:1997年7月9日委员会关于连接到2048kbit/s数字结构ONP租用线路的终端设备接口附件要求的通用技术法规的决定（与EEA相关的文本）
1997-07-09
EC 520-1997
97/520/EC: Commission Decision of 9 July 1997 on a common technical regulation for the attachment requirements for the terminal equipment interface for connection to 2 048 kbit/s digital unstructured ONP leased lines (Amendment 1) (Text with EEA relevance)
97/520/EC:1997年7月9日委员会关于连接到2048kbit/s数字非结构化ONP租用线路的终端设备接口附件要求的通用技术法规的决定（修改件1）（与EEA相关的文本）
1997-07-09
UNE-ETS 300248-1999
BUSINESS TELECOMMUNICATIONS (BT). OPEN NETWORK PROVISION (ONP) TECHNICAL REQUIREMENTS. 2 048 KBIT/S DIGITAL UNSTRUCTURED LEASED LINE (D2048U). TERMINAL EQUIPMENT INTERFACE.
商业电信（BT） 开放网络供应（ONP）技术要求 2 048 KBIT/S数字非结构化专线（D2048U） 终端设备接口
1999-01-11
ETSI TBR 012
Business Telecommunications (BT); Open Network Provision (ONP) technical requirements; 2 048 kbit/s digital unstructured leased line (D2048U) Attachment requirements for terminal equipment interface
商业电信（BT）；开放网络供应（ONP）技术要求；2 048 kbit/s数字非结构化专线（D2048U）终端设备接口附件要求
1993-12-01
UNE-TBR 12-1998
BUSINESS TELECOMMUNICATIONS (BTC). OPEN NETWORK PROVISION (ONP) TECHNICAL REQUIREMENTS. 2 048 KBIT/S DIGITAL UNSTRUCTURED LEASED LINE (D2048U). ATTACHMENT REQUIREMENTS FOR TERMINAL EQUIPMENT INTERFACE.
商业电信（BTC） 开放网络供应（ONP）技术要求 2 048 KBIT/S数字非结构化专线（D2048U） 终端设备接口的附件要求
1998-06-30
EC 522-1997
97/522/EC: Commission Decision of 9 July 1997 on a common technical regulation for the attachment requirements for the terminal equipment interface for connection to 64 kbit/s digital unrestricted ONP leased lines (Amendment 1) (Text with EEA relevance)
97/522/EC:1997年7月9日委员会关于连接到64 kbit/s数字非限制ONP租用线路的终端设备接口附件要求的通用技术法规的决定（修订件1）（与欧洲经济区相关的文本）
1997-07-09