标准编号：ISO 14827-2:2005
中文名称：传送信息和控制系统 传送数据和控制系统中心间数据接口-第1部分： 数据交换（DATEX）-ASN（地址空间码[号]）
英文名称：Transport information and control systems — Data interfaces between centres for transport information and control systems — Part 2: DATEX-ASN
发布日期：2005-11
标准范围
DATEX-ASN allows different systems to exchange relevant data. This is contained in end-applicationmessages. Each end-application message is defined as either a “subscription” or a “publication” according tothe format as specified in ISO 14827-1. DATEX-ASN defines how these end-application messages arepackaged to form a complete data packet and also defines the rules and procedures for exchanging thesedata packets. Systems using DATEX-ASN are free to implement additional end-application functionalitiesaccording to the user requirements.A DATEX-ASN network comprises a certain number of systems.Each system can be viewed as consisting of the interfaces.This part of ISO 14827 deals only with the communications interface. It has been designed to meet the uniquerequirements of TICS; however, it has been designed in a generic fashion and thus could be used for otherdata exchanges as well.Systems implementing this part of 14827 sometimes operate simultaneously as a client and server, usingmultiple sessions. The communications cloud between the two systems may be complex or simple.
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