Standard No.:	GA/T 920-2010
English Name:	Communication protocol between road traffic signal controller and vehicle detector
Chinese Name:	道路交通信号控制机与车辆检测器间的通信协议
Chinese Classification:	R85    Traffic information management
Professional Classification:	GA    Professional Standard - Security
ICS Classification:	93.080.30 93.080.30    Road equipment and installations 93.080.30
Issued by:	Ministry of Public Security
Issued on:	2010-12-05
Implemented on:	2011-3-1
Status:	valid
Language:	English
File Format:	PDF
Word Count:	5000 words
Price(USD):	120.00
Delivery:	via email in 1 business day

1 Scope



This Standard specifies the data exchange specifications of the ethernet interface and the serial interface between the road traffic signal controller and the vehicle detector.

This standard is applicable to the road traffic signal controller and the vehicle detector.



2 Normative Reference



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

Contents
Foreword I
1 Scope
2 Normative Reference
3 Terms and Definitions
4 Requirements of Physical Layer Interfaces
5 Data Frame
6 Communication Specification
7 Communication Content