Chinese response of server address request packet Length Description Start Bit 2 0x78 0x78 Length = Protocol Number + Information Content + Information Length of data bit 1 Serial Number + Error Check Protocol Number 1 0x17 Length of 1 Server Flag Bit + Length of Command Content Command Server Flag 4 It is reserved to the identification of the server. Bit ADDRESS 8 Address request code mark（ASCII） && 2 Separator（ASCII） Information Content Address M Address resolved by server（UNICODE） Content && 2 Separator（ASCII） Phone 21 Request packet number by transmitted by server（ASCII） Number ## 2 Separator（ASCII） Serial number of data sent later at each time will be automatically Information Serial Number 2 added ‘1’. Serial Number (including and “Packet Length” “Information Serial are values of CRC-ITU. CRC error occur when Number”) , Check Bit 2 the received information is calculated, the receiver will ignore and discard the data packet. (See Appendix 1) Stop Bit 2 Fixed value:0x0D 0x0A Example：78 78 6E 17 68 00 00 00 01 41 44 44 52 45 53 53 26 26 4F 4D 7F 6E 00 3A 5E 7F 4E 1C 77 01 00 2E 60 E0 5D DE 5E 02 00 2E 60 E0 57 CE 53 3A 00 2E 4E 91 5C 71 89 7F 8D EF 00 2E 79 BB 60 E0 5D DE 5E 02 5B 66 59 27 65 59 80 B2 7E A6 00 32 00 35 7C 73 00 2E 26 26 38 36 31 33 34 32 31 36 33 32 36 39 39 00 00 00 00 00 00 00 00 23 23 00 16 C1 EC 0D 0A English response of server address request packet Length Description Start Bit 2 0x79 0x79 Length = Protocol Number + Information Content + Information Length of data bit 2 Serial Number + Error Check Protocol Number 1 0x97 Length of 1 Server Flag Bit + Length of Command Content Command Server Flag Information 4 Leave for server identification. Content Bit ADDRESS 8 Address request code mark（ASCII） && 2 Separator（ASCII）
Chinese response of server address request packet Length Description Start Bit 2 0x78 0x78 Length of data bit 1 Length = Protocol Number + Information Content + Information Serial Number + Error Check Protocol Number 1 0x17 Information Content Length of Command 1 Server Flag Bit + Length of Command Content Server Flag Bit 4 It is reserved to the identification of the server. ADDRESS 8 Address request code mark（ASCII） && 2 Separator（ASCII） Address Content M Address resolved by server（UNICODE） && 2 Separator（ASCII） Phone Number 21 Request packet number by transmitted by server（ASCII） ## 2 Separator（ASCII） Information Serial Number 2 Serial number of data sent later at each time will be automatically added ‘1’. Check Bit 2 Serial Number (including “Packet Length” and “Information Serial Number”) , are values of CRC-ITU. CRC error occur when the received information is calculated, the receiver will ignore and discard the data packet. (See Appendix 1) Stop Bit 2 Fixed value:0x0D 0x0A Example：78 78 6E 17 68 00 00 00 01 41 44 44 52 45 53 53 26 26 4F 4D 7F 6E 00 3A 5E 7F 4E 1C 77 01 00 2E 60 E0 5D DE 5E 02 00 2E 60 E0 57 CE 53 3A 00 2E 4E 91 5C 71 89 7F 8D EF 00 2E 79 BB 60 E0 5D DE 5E 02 5B 66 59 27 65 59 80 B2 7E A6 00 32 00 35 7C 73 00 2E 26 26 38 36 31 33 34 32 31 36 33 32 36 39 39 00 00 00 00 00 00 00 00 23 23 00 16 C1 EC 0D 0A English response of server address request packet Length Description Start Bit 2 0x79 0x79 Length of data bit 2 Length = Protocol Number + Information Content + Information Serial Number + Error Check Protocol Number 1 0x97 Information Content Length of Command 1 Server Flag Bit + Length of Command Content Server Flag Bit 4 Leave for server identification. ADDRESS 8 Address request code mark（ASCII） && 2 Separator（ASCII）
GT700%20&%20GT710%20Communication%20Protocol.docx