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This document gives details of the AT Command Set supported by the Hisi Hi2115 chip loaded with V150R100C10B300SP2 firmware. At boot the following string will be output: <CR><LF>M5310-A<CR><LF>OK<CR><LF> After this string has been received the AT Command processor is ready to accept AT commands. If the Applications core was rebooted or restarted for any reason that wasn’t a normal power-on sequence, a message will be output before the <CR><LF>M5310-A<CR><LF>OK<CR><LF> string. See Chapter 7 for more details. In case external MCU intervene the process of update, unsolicited information informs the external MCU update state. Please reference AT document [1] for more detail information <CR><LF>FIRMWARE DOWNLOADING<CR><LF> Indicates UE is downloading update package. <CR><LF>FIRMWARE DOWNLOAD FAILED<CR><LF> Indicates download failed. <CR><LF>FIRMWARE DOWNLOADED<CR><LF> Indicates download finished. <CR><LF>FIRMWARE UPDATING<CR><LF> Indicates UE is updating. <CR><LF>FIRMWARE UPDATE SUCCESS<CR><LF> Indicates update success, but not report update state to firmware package server yet.

本手册详细说明中移物联网 M53xx 系列 NB-IoT 模组与 OneNET 平台对接 流程示例， 对接时采用移动研究院发布的 CoAP 协议， 模组软件版本为全系列量。 产版本。 本文旨在帮助客户快速完成中移物联网有限公司 NB-IoT 模组与 OneNET 平台的对接工作。 在使用本手册进行 OneNET 平台对接之前，需先完成模组初始化驻网流程， 模组驻网成功后，方可按照本文档进行 OneNET 平台业务对接测试。 注： 文档中[#Send]标注的部分代表模组侧 RxD 接收数据内容， [#Recv]标注的部 分代表模组侧 TxD 返回数据内容。