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Standard No.: GB/T 18240.3-2003
Language: Chinese, Available in English version
Release Date: 2003
Published By: General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China
Latest: GB/T 18240.3-2003

Scope: This part of GB18240 specifies the general requirements, test methods, inspection rules and other related contents of tax controllers that cooperate with the host to realize tax control functions. This part applies to tax controllers that generate, store and transmit tax control data of ordinary invoices, and does not involve anti-counterfeiting tax control systems for special value-added tax invoices, tax control fuel dispensers, and tax control taxi meters. This part applies to the design, production, testing and acceptance of tax controllers, and provides a basis for product certification.

Introduction

Overview of the Technical Specification System of Tax Controllers

GB/T 18240.3-2003, as the third part of the tax control cash register series standard, focuses on standardizing the technical requirements of the tax controller. As an independent module that cooperates with the host to realize the tax control function, the device must meet the full process security requirements of data generation, storage and transmission.

Core hardware architecture requirements

Module	Technical requirements	Compliance basis
Main control MCU	Requires integrated power monitoring and reset monitoring	GB18240.1-2003 4.1.4
Tax control memory	Non-volatile storage, power-off protection	4.1.2.2
IC card interface	≥2 tax control IC card interfaces	4.4.1.1
Communication interface	Serial interface (GB/T6107) as standard, USB as optional	4.4.1.2-3

Key software function specifications

Typical application scenario: In a supermarket renovation project, the tax controller achieves compliance through the following functions:

Respond to the host's invoicing command (A.3.2.6) to generate invoice data with tax control code
Verify the validity of the original invoice when performing a refund operation (A.3.2.7)
Automatically sign and store daily transaction data (4.1.3.4)

Comparison of electromagnetic compatibility requirements

Test Items	Class A Equipment	Class B Equipment	Test Standards
Radio Disturbance	Industrial Environment	Residential Environment	GB9254-1998
Electrostatic Immunity	±8kV Contact Discharge	±4kV Contact Discharge	GB/T17618-1998
Fast Transients	±2kV Power Line	±1kV Signal Line	GB/T17618-1998

Implementation Suggestions

Key points for equipment transformation:According to the requirements of Appendix B, special attention should be paid to the transformation of old equipment:

The memory capacity must support 5 years of data storage (the original equipment is usually only 1-2 years)
Data format conversion must comply with Appendix B of GB18240.2
Original transmission protocol compatibility must be retained

Acceptance test process:Refer to the requirements of Table 3, and focus on the following:

28 basic command tests (Table A.3)
Power adaptability test (Table 1/Table 2)
MTBF≥5000 hours verification

GB/T 18240.3-2003 Referenced Document

GB 18240.1 Fiscal cash register Part 1: Specification of device
GB 18240.2-2003 Fiscal cash register Part 2: Specification for fiscal IC card
GB 18240.6 Fiscal cash register-Part 6:Rule of coding for the devies*， 2004-09-21 Update
GB 4943 Safety of information technology equipment
GB 9254 Limits and methods of measurement of radio disturbance for information technology equipment*， 2008-08-06 Update
GB 9969.1 General principles for preparation of instructions for use of industrial products
GB/T 17618 Information technology equipment.Immunity characteristics.Limits and methods of measurement*， 2015-02-04 Update
GB/T 191-2000 Packaging-Pictorial marking for handling of goods

GB/T 18240.3-2003 history

2003 GB/T 18240.3-2003 Fiscal cash register--Part 3: Specification of fiscal processor

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GB/T 18240.3-2003