大额支付系统与城市商业银行接口方案V2.3中国人民银行科技司内部资料注意保密二○○六年七月目录1概述.......................................................................11.1目的................................................................11.2支付系统概述........................................................11.3接口概述............................................................32接口需求分析...............................................................42.1接口业务处理范围....................................................42.2一个工作日的运行时序图..............................................63物理连接说明...............................................................93.1物理连接结构图......................................................93.2前置机系统配置.....................................................103.2.1前置机系统分类...........................................................103.2.2大型前置机系统...........................................................103.2.3中型前置机系统...........................................................123.2.4小型前置机系统...........................................................133.2.5客户机（2-4台）.........................................................133.2.6网络结构说明.............................................................143.2.7前置机系统软件结构图.....................................................144应用连接说明..............................................................144.1应用连接结构图.....................................................154.2接口处理模式.......................................................154.2.1联机处理模式.............................................................154.2.2脱机处理模式.............................................................174.3前置机系统功能分布.................................................184.3.1前置机与城市商业银行系统接口功能.........................................184.3.2前置机客户端功能.........................................................225接口双方需要完成的工作....................................................245.1支付系统开发单位需要完成的工作.....................................245.2城市商业银行需要完成的工作.........................................246API使用说明..............................................................256.1连接API............................................................256.2断开连接API........................................................266.3发送API............................................................266.4接收API............................................................276.5接收确认API........................................................306.6打开文件API........................................................306.7写文件API..........................................................316.8读文件API..........................................................316.9关闭文件API........................................................327接口报文说明..............................................................337.1字符集说明.........................................................337.1.1属性符号.................................................................337.1.2x-字符集.................................................................337.2报文结构...........................................................337.2.1报...
