手机支付现场支付子系统开发指导文档POS服务系统-POS终端接口说明版本号:1.0.0╳╳╳╳-╳╳-╳╳发布中国移动通信有限公司研究院目录1.范围.................................................................................................................................................42.规范性引用文件.............................................................................................................................43.术语、定义和缩略语.....................................................................................................................44.网络结构.........................................................................................................................................75.接口说明.........................................................................................................................................76.协议栈.............................................................................................................................................87.通信方式.........................................................................................................................................87.1.短连接.....................................................................................................................................97.2.本协议涉及的端口号...........................................................................................................108.接口流程.......................................................................................................................................108.1.POS充值...............................................................................................................................108.2.消费撤销...............................................................................................................................128.3.退货.......................................................................................................................................138.4.签到.......................................................................................................................................158.5.批结算...................................................................................................................................158.6.回响.......................................................................................................................................168.7.POS终端初始化...................................................................................................................178.8.应用程序更新.......................................................................................................................188.9.参数更新...............................................................................................................................188.10.KEK更新..........................................................................................................................199.IF1——POS-POS服务系统交易接口.........................................................................................209.1.消息域说明...........................................................................................................................209.1.1.指令说明............................................................................