syntax = "proto3"; message NetworkInfoReqDTO { string dtu_sn = 1; // DTU serial number uint32 time = 2; // Timestamp of the request int32 net_set_mod = 3; // Network setting mode int32 net_set_time = 4; // Network setting time int32 net_set_state = 5; // Network setting state int32 net_work_mod = 6; // Network working mode int32 net_work_time = 7; // Network working time int32 csq = 8; // Carrier Signal Quality (CSQ) int32 net_work_state = 9; // Network working state int32 ap_set_state = 10; // Access Point (AP) setting state } message NetworkInfoResDTO { int32 offset = 1; // Offset value for response uint32 time = 2; // Timestamp of the response }