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YD/T 1271-2003Ring generator for telecommunication equipment (English PDF)

通信设备用铃流信号发生器

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Issued by

Ministry of Industry and Information Technology

Level / Type

National · Recommended

Issue date

June 5, 2003

Implementation date

June 5, 2003

Scope

YD/T 1271-2003 is the English-translated version of 通信设备用铃流信号发生器.

YD/T 1271-2003 is the Chinese standard "Ring generator for telecommunication equipment". This standard specifies the communication with the ringing signal generator modular technical requirements, test methods, inspection rules, packaging storage and transportation.

This standard applies to communications with modular ringing signal generator (hereinafter referred to as ringing current module). Issued on 2003-06-05, in force from 2003-06-05.

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Document preview — YD/T 1271-2003

National Standard of the People's Republic of China

ICS: 33.040.99
Classification: M41

[Preview only]
1 Scope
2 Normative references
3 Abbreviations
3.1 Terms and definitions
4 General
4.1 Test environment
4.2 UE Information
4.3 Test Implementation
5 Technical requirements

1 Foreword

YD/T 1271-2003 was issued by Ministry of Industry and Information Technology on 5 June 2003 and took effect the same day.

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 11 pages in English translation.

2 Scope Preview

This standard specifies the communication with the ringing signal generator modular technical requirements, test methods, inspection rules, packaging storage and transportation. This standard applies to communications with modular ringing signal generator (hereinafter referred to as ringing current module).

YD/T 1271-2003 falls under ICS 33.040.99, in the field of telecommunications.

This catalogue holds 3,420 other YD/T standards in that field.

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 11 pages (approximate)

Chinese original: about 16,110 characters

4 Related standards

Standards on related subjects:

YD/T 1092-2023 — Telecommunication cables - Foamed polyolefin dielectric, corrugated copper-tube outer conductor, 50 Ohm radio-frequency coaxial cable for wireless communications

YD/T 2165-2010 — Technical specification of modular uninterruptible power systems for telecommunications

YD/T 777-2006 — Inversion equipment for telecommunications

YD/T 6604-2025 — Integrated power supply for smart tower

YD/T 1436-2024 — Outdoor communication power supply system

5 Classification and status

International classification (ICS): 33.040.99

Chinese Standard Classification (CCS): M 41

Prefix YD/T: recommended standard.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 11 pages — is available in the English PDF.

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