GB/T 15279-2002 The specifications of automatic telephone set (Text of Document is in English)

02/01/2002

57P

$150.00 USD

Contents
FOREWORD
1 SCOPE
2 NORMATIVE REFERENCES
3 TERMS AND SYMBOLS
3.1 TERMS AND SYMBOLS
3.2 GRAPHIC SYMBOLS
4 TECHNICAL REQUIREMENTS
4.1 SERVICE CONDITIONS
4.2 CALL TRANSFER CHARACTERISTIC
4.3 DIALING CHARACTERISTIC OF TELEPHONE SET
4.4 CHARACTERISTIC OF TELEPHONE RINGER
4.5 CHARACTERISTIC OF TELEPHONE HOOK SWITCH
4.6 CHARACTERISTICS OF TELEPHONE CORD AND HANDSET CORD
4.7 KEY “R”
4.8 APPEARANCE AND STRUCTURE
4.9 SAFETY REQUIREMENTS
4.10 ENVIRONMENTAL SUITABILITY OF TELEPHONE SET
4.11 LIGHTNING RESISTANCE OF TELEPHONE SET
4.12 ELECTROMAGNETIC COMPATIBILITY OF TELEPHONE SET
4.13 FUNCTIONAL REQUIREMENTS FOR TELEPHONE SET
4.14 RELIABILITY REQUIREMENTS FOR TELEPHONE SET
5 TEST METHODS
5.1 TEST CONDITIONS
5.2 TESTING OF LOUDNESS RATING
5.3 TESTING OF FREQUENCY RESPONSE OF TELEPHONE SET
5.4 TESTING OF AMPLITUDE CHARACTERISTIC OF TELEPHONE SET
5.5 TESTING OF NONLINEAR DISTORTION OF TELEPHONE SET
5.6 MEASUREMENT OF NOISE CHARACTERISTIC OF TELEPHONE SET
5.7 MEASUREMENT OF THE MAXIMUM SOUND LEVEL IN CASE OF SWITCHING ON AND OFF OF TELEPHONE SET
5.8 INSPECTION OF SINGING PHENOMENON OF TELEPHONE SET
5.9 TESTING OF DC RESISTANCE OF TELEPHONE SET IN TAKE-UP STATE
5.10 TESTING OF LEAKAGE CURRENT OF TELEPHONE SET IN HANGUP STATE
5.11 TESTING OF STABLE BALANCE RETURN LOSS AND ECHO BALANCE RETURN LOSS
5.12 TESTING OF DIALING CHARACTERISTIC OF TELEPHONE SET
5.13 TESTING OF RINGING CHARACTERISTIC OF TELEPHONE SET
5.14 LIFE TEST
5.15 TESTING OF CHARACTERISTICS OF TELEPHONE CORD AND HANDSET CORD
5.16 TESTING OF ACTUATION DURATION AND OFF RESISTANCE OF KEY “R”
5.17 INSTALLATION PROCESS AND SURFACE QUALITY
5.18 TESTING OF SAFETY PERFORMANCE OF TELEPHONE SET
5.19 BASIC ENVIRONMENTAL SUITABILITY TEST
5.20 LIGHTNING RESISTANCE TEST OF TELEPHONE SET
5.21 ELECTROMAGNETIC COMPATIBILITY TEST
5.22 FUNCTIONAL INSPECTION OF TELEPHONE SET
6 MARKING AND PACKING
6.1 MARKING
6.2 PACKING
ANNEX A (NORMATIVE) RELIABILITY TEST (TEST OF MEAN TIME BETWEEN FAILURES OF TELEPHONE SET)
A.1 TEST SCHEME
A.2 TEST DURATION
A.3 TEST REQUIREMENTS
A.3.1 REQUIREMENTS FOR TEST TELEPHONES
A.3.2 TEST CONDITIONS
A.3.3 TEST METHOD
A.4 FAILURE CRITERIA
A.5 FAILURE ANALYSIS AND MAINTENANCE