GB/T 19516-2017Wired-emergency telephone system of expressway (English PDF)

Foreword

This standard was drafted in accordance with the rules given in GB/T 1.1-2009.

This standard replaces GB/T 19516-2004 "highway wired emergency call system technical requirements." And GB/T 19516-2004 In addition, editorial changes in addition to the main technical changes are as follows.

--- Standard name changed to "Expressway wired emergency telephone system";

--- Added the terms and definitions used in this standard (see Chapter 3);

--- Increased the highway emergency telephone system structure and classification of the relevant provisions (see Chapter 4);

--- Modify the functional requirements (see 5.1, 5.3.2 and 5.4.2, 2004 edition 3.3.3 and 3.4.2);

--- Increased the main performance requirements (see 5.2);

--- Increasing the signal characteristics of optical fiber system requirements (see 5.3.3.1);

--- Modify the roadside extension of environmental adaptability, electrical safety and lightning performance requirements (see 5.4.1, 2004 edition of 3.4.1, 3.4.7 and 3.4.9);

--- Increased roadside extension power adaptability requirements (see 5.4.1.3);

--- Modify the roadside extension voice characteristics requirements (see 5.4.4, 2004 version 3.4.4);

--- Modify the power supply requirements of roadside extensions (see 5.4.5, 2004 version 3.4.5);

--- Modify the technical requirements of the transmission medium (see 5.5, 2004 version 3.5);

--- Modify other technical requirements (see 5.6, 2004 version 3.6);

--- Increasing the technical requirements of the corresponding test methods (see Chapter 6);

--- Added rules on product inspection rules (see Chapter 7);

--- Increasing the product labeling, packaging, transportation and storage of the relevant provisions (see Chapter 8);

--- Increased the detailed provisions of the console interconnection (see Appendix A);

--- Modify the rules of computer communication with the monitoring system requirements (see Appendix B, 2004 edition of Appendix A).

1 Scope

This standard specifies the structure and classification of highway wired emergency call system (hereinafter referred to as "emergency call system"), technical requirements, test Inspection methods, inspection rules, marking, packaging, transportation and storage.

This standard applies to the use of fiber optic cable type, cable emergency telephone system, other applications may refer to use.

2 Normative references

The following documents for the application of this document is essential. For dated references, only the dated version applies to this document. For undated references, the latest edition (including all amendments) applies to this document.

GB/T 191 Packaging - Pictorial signs

GB 5080.7 Equipment reliability test Constant failure rate under the assumption of failure rate and mean time between failure of the verification test program

GB 5768.2 Road traffic signs and marking Part 2: Road traffic signs

GB/T 13849.1 Polyolefin insulated polyolefin sheathed telecommunications cables Part 1: General

GB/T 13849.3 Polyolefin insulated polyolefin sheathed telecommunications cables Part 3 - Copper core, solid or foam (with foam)

Polyolefin insulation, filled, tide layer polyethylene sheathing city communication cable

Automatic telephone technical requirements

JT/T 817 Highway Electrical System Equipment General Technical Requirements and Testing Methods

YD/T 1117 all-fiber branch device technical conditions

ITU-T G.652 Characteristics of single mode optical fiber and cable

3 Terms and definitions

The following terms and definitions apply to this document.