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Technical Support:

h.usriot.com

www.usr.cn

1

USR-G771-E User Manual

Document version: V1.0.5

Summary of Contents for USR-G771-E

Page 1: ...Technical Support h usriot com www usr cn 1 USR G771 E User Manual Document version V1 0 5...

Page 2: ...eters 9 4 2 Frame forming mechanism 10 4 2 1 Time Trigger 10 4 2 2 Length trigger 10 5 Selecting an Operating Mode 11 5 1 Transparent Mode 11 5 2 HTTPD Client Mode 14 5 3 SMS Mode 16 6 General Functio...

Page 3: ...terface RS232 and RS485 standard interfaces meets the needs of different application scenarios 1 2 Features Equipped with CAT 1 network 10Mbps download rate 5Mbps upload rate meeting 80 of the data tr...

Page 4: ...FF USB interface Slave MicroUSB USB 2 0 High speed UART interface RS232 and RS485 baud rate 1200 230400 bps Antenna interface SMA female cellular antenna connector Environmental Dimensions mm 82 6 86...

Page 5: ...n Serial Network SMS AT command Features Socket distribution protocol Support Heartbeat package Support ICCID IMEI SN User defined LBS Identity package Support ICCID IMEI SN User defined CLOUD FOTA se...

Page 6: ...Working status indicator Flashes every second NET Network status indicator Green means 4G network red means 2G network LINKA Socket A connection status indicator Always on after socket A is connected...

Page 7: ...ect the USB connector other end of the cable into the PC RS485 Connect pin A of the RS485 interface of the G771 E to pin A of the RS485 to USB adaptor pin B of G771 E to pin B of the adaptor 3 Power S...

Page 8: ...not communicate with each other 2 Working mode selection area select the work mode of the modem 3 In the parameter setting area of characteristic functions set parameters related to modem s featured f...

Page 9: ...r com 9 4 Serial Port 4 1 Basic Parameters Serial parameters of USR G771 E must be consistent with the parameters of the serial device Serial port parameters include basic parameters and framing param...

Page 10: ...eshold here is the time between packages The range of settable is 10ms 500ms Factory default 50ms This parameter can be set by AT command AT UARTFT time Note T is the packing interval time 4 2 2 Lengt...

Page 11: ...nd SMS mode 5 1 Transparent Mode In this mode users do not need to pay attention to the data conversion process can realize the bidirectional data transparent transmission between serial devices and n...

Page 12: ...ork mode to Transparent mode 3 AT SOCKAEN ON Enable Socket A 4 AT SOCKASL LONG Set Socket A to persistent link 5 AT SOCKA TCP test usr cn 2317 Set the remote IP and port of Socket A 6 AT S Save all pa...

Page 13: ...USR G771 E User Manual Technical Support h usriot com Jinan USR IOT Technology Limited www pusr com 13...

Page 14: ...rver parses and sends data to the serial device User does not need to pay attention to the data conversion process between the serial data and the network data packet and can achieve the data request...

Page 15: ...request type to GET 4 AT HTPURL 1 php Set the HTTP URL 5 AT HTPSV test usr cn 80 Set the HTTP server address and port 6 AT HTPHD Accept text html 0D 0A Set the HTTP request header 7 AT HTPTO 10 Set t...

Page 16: ...e In this mode user s serial device can send SMS to the specified mobile phone and receive SMS from any mobile phone User can decide whether to transmit the data of the specified mobile phone to the s...

Page 17: ...nation phone number 4 AT SMSFLT ON Enable only receive SMS from source number 5 AT VOLTEEN ON Enable VOLTE function 6 AT S Save the parameters and restart Note 1 You need to add the international numb...

Page 18: ...USR G771 E User Manual Technical Support h usriot com Jinan USR IOT Technology Limited www pusr com 18...

Page 19: ...ons Identity package can be sent when the modem establishes a connection with the server or as the prefix of each data packet or both Identity package data can be ICCID code IMEI code SN CLOUD or User...

Page 20: ...Operation 1 a Enter AT command mode 2 AT WKMOD NET Set the work mode to NET 3 AT REGEN ON Enable identity package function 4 AT REGTP USER Set the type to User defined 5 AT REGDT 7777772E7573722E636 E...

Page 21: ...e status of the module User can also set the serial heartbeat to a fixed query command instead of sending from server to save the traffic Heartbeat package can be ICCID code IMEI code SN LBS or user d...

Page 22: ...all parameters save and restart the modem Note 1 Network heartbeat package In transparent mode it will only be sent when there is no data sent to network within one heartbeat interval 2 Serial heartbe...

Page 23: ...ta and socket distribution protocol must be less than the packaging length This function is valid in transparent mode disabled by default can be set via AT command AT SDPEN 6 4 Backup Socket In transp...

Page 24: ...emote IP and port of Socket A 6 AT SOCKABKEN ON Enable Socket backup function 7 AT SOCKABK TCP test usr cn 2317 Set the backup server address and port 8 AT S Save all parameters and restart 6 5 Securi...

Page 25: ...ation 1 a Enter serial AT command mode 2 AT SAFEATEN ON Enable security function 3 AT S Save all parameters and restart Change the password Command Operation 1 a Enter serial AT command mode 2 AT SIGN...

Page 26: ...efaults to be disabled support connecting to up to 4 NTP servers User can send AT CCLK or AT CCLK to query the current time Set by the utility Set by AT commands Command Operation 1 a Enter serial AT...

Page 27: ...ral location of the device through the operator s network Base station positioning information can be obtained through serial AT command or SMS AT command 6 9 Firmware Upgrade G771 E supports upgradin...

Page 28: ...irmware 6 Upgrade successfully You can directly change to another device to upgrade After all the devices are upgraded click Stop then close the tool 6 10 Restore to Factory Default Settings 1 Hardwar...

Page 29: ...to make the settings take effect Every time the modem restart will work in work mode rather AT command mode Every AT command must add character carriage return CR and line feed LF In Hex CR is 0x0D L...

Page 30: ...rent mode without changing to AT command mode Command prefix defaults to usr cn Example query socket A status there is a carriage return and line feed after the AT command 7 3 Network AT Commands In t...

Page 31: ...logy Limited www pusr com 31 7 4 SMS AT Commands If we know the phone number of the SIM card in G771 E we can also query or modify the parameters of it by sending SMS AT command For example query firm...

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