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JJG 107-2002 English PDF

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JJG 107-2002: Single and Dispersion Controled Centrely Telephone Accounter
Status: Valid

JJG 107: Evolution and historical versions

Standard IDContents [version]USDSTEP2[PDF] delivered inStandard Title (Description)StatusPDF
JJG 107-2002English419 Add to Cart 3 days [Need to translate] Single and Dispersion Controled Centrely Telephone Accounter Valid JJG 107-2002
JJG 107-2001EnglishRFQ ASK 3 days [Need to translate] The 15 coupler template VRof JJG 107-2001
JJG 107-1995English399 Add to Cart 3 days [Need to translate] Verification Regulation of Electron Charge Hourmeter Obsolete JJG 107-1995
JJG 107-1983EnglishRFQ ASK 3 days [Need to translate] (Chinese Industry Standard) Obsolete JJG 107-1983

PDF similar to JJG 107-2002


Standard similar to JJG 107-2002

GB/T 3222.1   JJG 188   JJF 1396   JJG 802   JJG 488   JJG 238   

Basic data

Standard ID JJG 107-2002 (JJG107-2002)
Description (Translated English) Single and Dispersion Controled Centrely Telephone Accounter
Sector / Industry Metrology & Measurement Industry Standard
Classification of Chinese Standard A57
Word Count Estimation 16,195
Date of Issue 2000-05-16
Date of Implementation 2002-08-01
Older Standard (superseded by this standard) JJG 107-1995
Quoted Standard GB/T 14381-1993; GB/T 15279-1994; YD/T 1004-1998; YD/T 729-1994
Issuing agency(ies) State Administration of Quality Supervision, Inspection and Quarantine
Summary This standard applies to stand-alone billing and centralized management of decentralized type of phone time billing (hereinafter referred to as "meter") of the first test, test and use the subsequent test.

JJG 107-2002: Single and Dispersion Controled Centrely Telephone Accounter

---This is a DRAFT version for illustration, not a final translation. Full copy of true-PDF in English version (including equations, symbols, images, flow-chart, tables, and figures etc.) will be manually/carefully translated upon your order.
Single and Dispersion Controled Centrely Telephone Accounter National Metrology Verification Regulations of the People's Republic Single model and centralized management Telephone timing meter Released on.2002-05-16 Implementation of.2002-08-01 The General Administration of Quality Supervision, Inspection and Quarantine issued Replace JJG 107-1995 This regulation was approved by the General Administration of Quality Supervision, Inspection and Quarantine on May 16,.2002, and It will take effect on August 1,.2002. Focal Point. National Time Frequency Measurement Technical Committee Main drafting unit. Fuzhou Metrology Institute Participated in the drafting unit. Tianjin Institute of Metrology and Technology Ministry of Information Industry Communication Measurement Center Hangzhou Jinshuo Technology Development Co., Ltd. This procedure entrusts the National Time Frequency Measurement Technical Committee to explain The main drafters of this procedure. Chen Jiangong (Fuzhou Metrology Institute) Participate in the drafters. Zhang Zhihong (Tianjin Institute of Metrology and Technology) Lu Bingsong (Communication Measurement Center of Ministry of Information Industry) Sun Yinhai (Hangzhou Jinshuo Technology Development Co., Ltd.) Yan Xiaoling (Fuzhou Metrology Institute)

table of Contents

1 Scope (1) 2 Citations (1) 3 Overview (1) 4 Metrology performance requirements (1) 4.1 Timing Error (1) 4.2 Billing Error Rate (1) 4.3 Receiving accuracy rate (1) 4.4 Interventional attenuation (1) 4.5 Intermittent attenuation frequency response (1) 4.6 Interface Idle Noise Level (1) 4.7 Return Loss (2) 4.8 Insulation resistance (2) 5 General technical requirements (2) 5.1 Appearance (2) 5.2 Function (2) 6 measuring instrument control (2) 6.1 Verification conditions (2) 6.2 Verification items and verification methods (3) 6.3 Processing of verification results (7) 6.4 Verification cycle (7) Appendix A Telephone Timed Meter Verification Record (8) Single-machine type and centralized management decentralized billing type telephone timing meter verification procedure

1 Scope

This procedure is applicable to single-machine type and centralized management of decentralized billing type telephone timing meter (hereinafter referred to as "meter") First verification, follow-up verification and in-use inspection.

2 Citations

This procedure refers to the following documents. GB/T 14381-1993 General technical conditions for program-controlled digital subscriber switches GB/T 15279-1994 Automatic telephone technical conditions YD/T 1004-1998 Multi-channel telephone billing system technical requirements and test methods YD/T 729-1994 program-controlled digital subscriber switch network test method Use of this procedure should take care to use the current valid version of the above cited documents.

3 Overview

The meter is a measuring instrument for timing the billing of the telephone user's call process. It is in program-controlled automatic telephone The DC feed polarity reversal (reverse polarity signal) of the switch starts to count when the voltage or current crosses zero, and the loop current is Stop timing at zero hour. Timing, billing results and related letters based on time measurement results and corresponding telephone rates interest.

4 Metrological performance requirements

4.1 Timing error 4.1.1 The absolute value of the timing error of the meter in the time range of 1200s shall be no more than 1s. 4.1.2 The absolute value of the current time error of the single-type meter should be less than 5 min. Centralized management of decentralized billing The absolute value of the current moment error of the device should be less than 1 min. 4.2 Billing error rate The billing error rate of the meter is ≤0.1%. 4.3 Receiving accuracy rate The accuracy of the receipt of a single number of the meter is ≥99.99%. 4.4 Interventional attenuation The intervention attenuation of the meter is ≤0.5dB (at 800Hz). 4.5 Frequency response of interventional attenuation The frequency response of the meter intervention attenuation is ±0.3dB (in 300Hz~3.4kHz, compared to 800Hz, 0dB). 4.6 Interface idle noise level

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