YD/T 868-2007Technical requirements and measuring methods for additional equipment of telephone set (English PDF)

Foreword

This Standard replaces YD/T 868-1996, Technical requirements and measuring

methods for network access of additional equipment of telephone set. Compared with

YD/T 868-1996, the major changes of this Standard are as follows.

-- it changes the name of the standard into "Technical requirements and measuring

methods for additional equipment of telephone set";

-- it specifies the definitions of additional equipment;

-- it adds reference standards;

-- the addition of additional equipment having the proxy dialing function shall be as

required by YD/T 1361. New requirements are added for additional equipment

having the alarm signal sending function;

-- the addition of additional equipment having the number identification function

shall be as required by YD/T 1277.1. For the measuring methods see the relevant

clauses of YD/T 1277.2;

-- it adds the safety requirements by directly referencing YD/T 965, The safety

requirement and test method for telecommunication terminal equipment;

-- it adds the electromagnetic compatibility requirements by directly referencing

YD/T 968, Limits and methods of measurement of electromagnetic compatibility

for telecommunication terminal equipment;

-- it adds the lightning resistance requirements by directly referencing YD/T 993-

1998, The technical requirements and test methods of overvoltages and

overcurrents resistibility for telecommunication terminal equipment.

The following standards are referenced in the drafting process of this Standard.

GB/T 15279, The specifications of automatic telephone set;

YD/T 965, The safety requirement and test method for telecommunication terminal

equipment;

YD/T 968, Requirements and test methods of electromagnetic compatibility for

telecommunication terminal equipment;

YD/T 993, The technical requirements and test methods of overvoltages and

overcurrents resistibility for telecommunication terminal equipment.

Technical requirements and measuring methods for

additional equipment of telephone set

1 Scope

This Standard specifies the technical requirements and measuring methods for the

additional equipment, including functional requirements, basic technical requirements

and environmental test, electromagnetic compatibility, safety and lightning protection.

This Standard applies to the equipment for the access to the PSTN network, which is

capable of performing the auxiliary functions independently or along with the telephone

set.

2 Normative references

The provisions in following documents become the provisions of this Standard through

reference in this Standard. For dated references, the subsequent amendments

(excluding corrigendum) or revisions do not apply to this Standard, however, parties

who reach an agreement based on this Standard are encouraged to study if the latest

versions of these documents are applicable. For undated references, the latest edition

of the referenced document applies.

GB/T 15279, The specifications of automatic telephone set

YD/T 965, The safety requirement and test method for telecommunication terminal

equipment

YD/T 968, Limits and methods of measurement of electromagnetic compatibility

for telecommunication terminal equipment

YD/T 993, The technical requirements and test methods of overvoltages and

overcurrents resistibility for telecommunication terminal equipment

YD/T 1277.1, Technical specification and testing method of caller identity delivery

based on PSTN – Part 1. Technical specification

YD/T 1277.2, Technical specification and testing method of caller identity delivery

based on PSTN – Part 2. Testing method

YD/T 1361, Technical requirements and testing methods for telephone dialer

operation of the telephone network and the normal service of the telephone set;

6) the additional equipment, which is connected to an external power supply

(including AC mains and batteries), shall not interfere with the service of the

telephone set in case of any failure of the external power supply;

7) the additional equipment shall be capable of operating normally in case of any

change in the power polarity of the subscriber line;

8) the additional equipment started automatically, shall not do maloperation when

the receiving exchange test signals automatically;

9) the additional equipment shall be capable of operating normally under the

conditions of 0 ~ 5 km of the subscriber line;

10) the additional equipment shall reset automatically after performing a function;

11) the special functions of the additional equipment shall be as specified in relevant

standards.

5 Measuring methods