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YD/T 1278-2003The technical demand and testing method for the charging performance of SPC. Telephone network part (English PDF)

在用局用交换设备计费技术要求和检测方法——固定电话网部分

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

June 24, 2003

Implementation date

September 1, 2003

Scope

YD/T 1278-2003 is the English-translated version of 在用局用交换设备计费技术要求和检测方法——固定电话网部分.

YD/T 1278-2003 is the Chinese standard "The technical demand and testing method for the charging performance of SPC. Telephone network part".

This standard specifies the switch billing systems and related accounting treatment systems specifications and test methods. Access to public telecommunication network equipment specifically billing performance testing can refer to this standard.

This standard does not involve interconnection billing and network testing. Issued on 2003-06-24, in force from 2003-09-01.

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Document preview — YD/T 1278-2003

National Standard of the People's Republic of China

Classification: M21

[Preview only]
1 Scope
2 Normative References
2.1 Term
3 Terms and Definitions
3.2 Abbreviations
3.3 Specifications
3.4 Product model and designation
3.5 Product marking
4 Product Classification
4.1 General
4.2 Model and name
4.3 Test Waveform
4.4 Product labelling
5 Requirements
5.2 Chemical components
5.3 SPD Disconnector Inspection
5.4 Environmental protection property
5.5 Material compatibility
5.6 Spurious emission
5.7 Transmit Spectrum Mask
5.8 Time of Rising Edge and Falling Edge
5.9 In-band Flatness
6 Test methods
6.2 Term restrictions
6.3 End-of-manufacturing inspection
6.4 Type inspection
6.5 Phone Program
6.6 OTASP/OTAPA Function
6.7 Processing of PIN
6.8 Fixed Dialing Number (FDN)
6.9 Abbreviated Dialing Number (ADN)
7 Inspection Rules
7.1 Packaging
7.2 Marking
7.3 Transport
7.4 Storage
7.5 Safety Test for Temporary Overvoltage Failure
7.6 Test of Temporary Overvoltage Withstand Characteristic
7.7 SPD Thermal Stability Test
8 Marking, Packing, Transport and Storage
8.1 Voltage Drop Test
8.2 Surge Withstand Capability at Load side
8.3 Short-circuit Withstand Capability at Load Side
9 Environmental Applicability Test
9.1 Vibration Test
9.2 High Temperature Test
9.3 Low Temperature Test
9.4 Alternating Humid Heat Test
9.5 Performance requirements for radio resource management

1 Foreword

YD/T 1278-2003 was issued by Ministry of Industry and Information Technology on 24 June 2003 and has been in force since 1 September 2003.

The YD/T prefix marks a recommended standard. It is not law in itself: it becomes binding when a contract names it, when a regulation or a mandatory standard refers to it, or when a producer declares conformity with it.

The document runs to 14 pages in English translation.

2 Scope Preview

This standard applies to fixed telephone line in use toll office and the local end office billing performance testing, test subjects including switch billing systems and related accounting treatment systems (pre-acquisition machine, billing center, accounting center). This standard specifies the switch billing systems and related accounting treatment systems specifications and test methods. Access to public telecommunication network equipment specifically billing performance testing can refer to this standard. This standard does not involve interconnection billing and network testing.

YD/T 1278-2003 is filed under Chinese Standard Classification M21, in the field of telecommunications and broadcasting.

This catalogue holds 2,288 other YD/T standards without an ICS number.

In this catalogue, YD/T standards carry edition years from 1982 to 2026.

3 About this standard

Sector: Telecommunication Industry Standard (Recommended)

Issued by: Ministry of Industry and Information Technology

English translation: about 14 pages (approximate)

Chinese original: about 21,286 characters

4 Related standards

Standards on related subjects:

YD/T 3910-2021 — Vehicle emergency call system based on public telecommunication network - Technical requirements and test method of the vehicle emergency rescue platform

YD/T 3909-2021 — Vehicle emergency call system based on public telecommunication network - Requirements and architecture

YD/T 1761-2012 — Technical requirements for web accessibility

YD/T 6445-2025 — Technical specifications for Quantum Random Number Generator (QRNG)

YD/T 6432-2025 — Technical requirements for trusted authentication of heterogeneous computing power for public communication service experience

YD/T 6431-2025 — Technical requirements for unified computing power identification based on service experience for public communications network

5 Classification and status

Chinese Standard Classification (CCS): M 21

Prefix YD/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 14 pages — is available in the English PDF.

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