Standard No.:	GB/T 15123-1994
English Name:	Information processing－Data communication－DTE/DCE interface back-up control operation using the 25-pole connector
Chinese Name:	信息处理 数据通信 使用25插针连接器的DTE/DCE接口备用控制操作
Chinese Classification:	L78    Data information
Professional Classification:	GB    National Standard
Issued by:	STSB
Issued on:	1994-07-01
Implemented on:	1995-3-1
Status:	abolished
Superseded by:	GB/T 15123-2008 Information technology - Telecommunication and information exchange between systems - DTE/DCE interface back-up control operation using GB/T 3454 interchange circuits
Superseded on:	2009-1-1
Abolished on:	2009-01-01
Language:	English
File Format:	PDF
Word Count:	3500 words
Price(USD):	100.00
Delivery:	via email in 1~3 business day

本标准描述租用电路上使用GB3454互换电路和GB/T 15125 25插针连接器进行数据传输的备用操作实施方法。在租用线路上不再可能进行数据传输的情况下，本标准满足了提供备用设施能力的不断增加的需求。本标准不排除使用任何方法将数据传输从租用线路自动切换到备用设备。本标准还区分应答站和呼叫站。