Introduction
USR-G761 is a DTU can used in 3G WCDMA network, it can worked in WCDMA/GSM, support HSDPA(7.2Mbps) high speed downlink transmission, and HSUPA(5.6Mbps) high speed uplink. The leistungskern of G761W is “transparent transmission”, user can integrate it into their system easily to realise data transfer based on WCDMA network.
Features
- Support quad band GSM/GPRS/EDGE and triple band WCDMA/HSPA.
- Support 2 network connections online simultaneously, support TCP and UDP.
- Support send network registration packet.
- Support heartbeat packet to serial or network.
- Support set the parameter remotely by SMS
- Support multiple working mode: SMS transparent transmission, network transparent transmission, HTTPD mode.
- Support send Chinese/Enlish SMS by AT command.
- Support RFC2217 function, the parameters of interface can be revised.
- Support RS232/RS485(can not work at the same time).
The internet
Standard : GSM/GPRS/EDGE/WCDMA/HSPA
Data bandwidth: Downlink: 7.2Mbps Upstream: 5.76Mbps
Standard frequency band: GSM Band 2/3/5/8, WCDMA Band 1/2/5
Receiving sensitivity: -108.5dBm
Maximum transmit power: WCDMA 24dBm±1/-3dB
Network Protocol: TCP, UDP, DNS, HTTPD Client
Network Cache: Send 1Kbyte, Receive 1K byte
Break Cache: 2 x 1K bytes (1K bytes per link)
port
Number of ports RS232*1/RS485*1 (cannot be used simultaneously)
Standard: RS-232: DB9 hole type; RS-485: 2 lines (A, B)
Data bits: 7bit, 8bit
Stop position: 1,2
Check Digit: None,Even,Odd,space
Baud rate: 1200bps~460.8Kbps
Cache: RX:1Kbyte,TX: 1Kbyte
Flow Control: -
Protection : RS485: Surge Protection, ESD Protection
Pull-up resistor on RS-485: 2.2 KΩ
power supply
VCC: 5.0V~24.0V
Operating Current: 200mA@12V average, 230mA@12V
Power Interface Type: DC Power Base
SIM card: 1.8V/3V
Antenna: SMA female screw hole
Module size :103 x 105 x 28(mm)(L*W*H)
Working temperature: -35°C~80°C
Storage temperature: -45°C~90°C
Storage Humidity: 5%~95% RH (without condensation)
software
USR-VOCM : Windows 2000 or higher (32-bit/64-bit)
Configuration method: PC setting software, serial port command, SMS command, network command
