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GB/T 15123-2008 English PDF

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Upon your order, we will start to translate GB/T 15123-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

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Q: Should I purchase the latest version GB/T 15123-2008?

Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15123-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.

US$214.00 · In stock
Delivery: <= 3 days. True-PDF full-copy in English will be manually translated and delivered via email.
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
Status: Valid

GB/T 15123: Historical versions

Standard ID	USD	BUY PDF	Lead-Days	Standard Title (Description)	Status
GB/T 15123-2008	214	Add to Cart	3 days	Information technology -- Telecommunication and information exchange between systems -- DTE/DCE interface back-up control operation using GB/T 3454 interchange circuits	Valid
GB/T 15123-1994	319	Add to Cart	3 days	Information processing-Data communication-DTE/DCE interface back-up control operation using the 25-pole connector	Obsolete

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Basic data

Standard ID: GB/T 15123-2008 (GB/T15123-2008)
Description (Translated English): Information technology -- Telecommunication and information exchange between systems -- DTE/DCE interface back-up control operation using GB/T 3454 interchange circuits
Sector / Industry: National Standard (Recommended)
Classification of Chinese Standard: L78
Classification of International Standard: 35.100.10
Word Count Estimation: 11,110
Date of Issue: 2008-07-28
Date of Implementation: 2009-01-01
Older Standard (superseded by this standard): GB/T 15123-1994
Quoted Standard: GB/T 3454; GB/T 15125-1994; GB/T 17559-1998
Adopted Standard: ISOIEC 8480-1995, IDT
Regulation (derived from): Announcement of Newly Approved National Standards No. 12 of 2008 (No. 125 overall)
Issuing agency(ies): General Administration of Quality Supervision, Inspection and Quarantine of the People's Republic of China, Standardization Administration of the People's Republic of China
Summary: This standard specifies when renting through a single interface for control and standby facilities alternate procedures. This procedure applies to data transmission on leased line, the standby facility GB/T 3454 interchange circuits connected to the 25 pin connector (GB/T 15125-1994) or 26- pin connector (GB/T 17559-1998). For leased lines and standby facilities automatically switch back and forth between the data transmission method is not specified in this standard. This standard does not apply through artificial means to get back (calling and answering) occasions.

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

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Information technology. Telecommunication and information exchange between systems. DTE/DCE interface back-up control operation using GB/T 3454 interchange circuits ICS 35.100.10 L78 National Standards of People's Republic of China GB/T 15123-2008/ISO /IEC 8480.1995 Replacing GB/T 15123-1994 Information technology - Telecommunications and information exchange Use GB/T 3454 the DTE/DCE interface back Control operation (ISO /IEC 8480.1995, Informationtechnology-Telecommunicationand controloperationusingITU-TrecommendationV. 24interchangecircuits, IDT) Posted 2008-07-28 2009-01-01 implementation Administration of Quality Supervision, Inspection and Quarantine of People's Republic of China Standardization Administration of China released

Preface Ⅰ ISO /IEC Foreword Ⅱ Introduction Ⅲ 1 Scope 1 2 Normative references 1 3 Terms and definitions 4 to switch to standby operation 2 4.1 answering station 3 4.2 calling station 4 5 contacts assigned No. 5 GB/T 15123-2008/ISO /IEC 8480.1995

Foreword

This standard is identical with the international standard ISO /IEC 8480.1995 between "Information technology - Telecommunications and information exchange use ITU-T Recommendation V. DTE 24 interchange circuits/DCE interface back control operation "(in English). This standard replaces GB/T 15123-1994 "Information processing - Data communication using the 25-pin connector of the DTE/DCE interface equipment Control operation. " Compared with the standard GB/T 15123-1994 The main changes are as follows. --- Increased Chapter 3 Terms and definitions; Before --- Delete version Appendix A, and as the contents of Chapter 5. This standard by the National Information Technology Standardization Technical Committee (SAC/TC28) and focal points. This standard was drafted. China Electronics Standardization Institute. The main drafters of this standard. Guo Nan, Huang Jiaying, Xu Dongmei, Zhang Cui, Zhang Hui. This standard was first published in 1994. GB/T 15123-2008/ISO /IEC 8480.1995 ISO /IEC Foreword ISO (International Organization for Standardization) and IEC (International Electrotechnical Commission) has assembled a dedicated worldwide standardization of Specialized organizations. ISO or IEC technical committees established by the Member States concerned organizations to participate in international standards and to address specific collar Technical matters domain. ISO IEC technical committees in the areas of mutual interest and cooperation. Other governmental and non-governmental national International organizations, liaison with ISO and IEC to participate in the work. In the field of information technology, ISO and IEC have established a joint technical committee (ISO /IEC JTC1). By the joint technical committee of the Draft International Standards will be adopted will be circulated to all member states to vote. An international standard officially announced the need to vote to Members 75% majority in favor. International Standard ISO /IEC 8480, by the Joint Technical Committee ISO /IEC JTC1 (IT) subcommittee SC6 Room (system away Range communication and information exchange) formulation. The second edition of the standard cancels and replaces the first edition (ISO /IEC 7480. 1984), is the first edition of this technical amendment. GB/T 15123-2008/ISO /IEC 8480.1995

Introduction

Provide data transmission in the case of leased lines, there may be provided an alternate operating requirements, whenever any reason impossible via When the leased line transmission, it will start using the backup operation. There are several possible alternate facilities. --- With a general switched telephone network (GSTN) lines as a two-wire leased line backup; --- With a GSTN line as a four-wire leased-line backup; --- GSTN with two lines as a four-wire leased-line backup; GB/T 15125-1994 Information technology - Data communication - 25 - pole DTE/DCE interface connector and contact assignment No. (Idt ISO 2110. 1989) Between GB/T 17559-1998 Information technology - Telecommunications and information exchange with the 26 pin interface connector and plug dimensions Contact number assignments (idt ISO /IEC 11569.1993)

3 Terms and Definitions

The following terms and definitions apply to this standard. 3.1 In such a station, when it receives the standby request (such as an incoming call) DCE switch to the standby facility. 3.2 When DTE DCE authorization to switch, DCE start switch to standby mode facilities. Note. In case DTE interface facility can not be controlled, then during installation, allowing in DCE choose this way. 3.3 In this station, DCE must send a request to the alternate called station (for example, to require the other end of the switch to the standby facility). 3.4 DTE start switch to standby mode facilities. GB/T 15123-2008/ISO /IEC 8480.1995 ......

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Tips & Frequently Asked Questions:

Question 1: How long will the true-PDF of GB/T 15123-2008_English be delivered?

Answer: Upon your order, we will start to translate GB/T 15123-2008_English as soon as possible, and keep you informed of the progress. The lead time is typically 1 ~ 3 working days. The lengthier the document the longer the lead time.

Question 2: Can I share the purchased PDF of GB/T 15123-2008_English with my colleagues?

Answer: Yes. The purchased PDF of GB/T 15123-2008_English will be deemed to be sold to your employer/organization who actually pays for it, including your colleagues and your employer's intranet.

Question 3: Does the price include tax/VAT?

Answer: Yes. Our tax invoice, downloaded/delivered in 9 seconds, includes all tax/VAT and complies with 100+ countries' tax regulations (tax exempted in 100+ countries) -- See Avoidance of Double Taxation Agreements (DTAs): List of DTAs signed between Singapore and 100+ countries

Question 4: Do you accept my currency other than USD?

Answer: Yes. If you need your currency to be printed on the invoice, please write an email to Sales@ChineseStandard.net. In 2 working-hours, we will create a special link for you to pay in any currencies. Otherwise, follow the normal steps: Add to Cart -- Checkout -- Select your currency to pay.

Question 5: Should I purchase the latest version GB/T 15123-2008?

Answer: Yes. Unless special scenarios such as technical constraints or academic study, you should always prioritize to purchase the latest version GB/T 15123-2008 even if the enforcement date is in future. Complying with the latest version means that, by default, it also complies with all the earlier versions, technically.