Gprs/gsm Module Transparent Transmission

We are exporting, manufacturing & supplying GPRS/GSM Module transparent transmission to our clients from Jinan, Shandong, China.
This is a serial uart to gprs module, used for data transparent transmission. USR-GPRS232-7S3 is highly-integrated UART to GSM/GPRS module, Users can easily make communication with it among serial device,cellphone and network device.USR-GPRS232-7S3 is based on USR-GM3 gprs module.Clients can use the product to realize bidirectional transparent transmission from serial port to network through simple AT command.
GPRS Module Feature

Support GSM850/900,DCS1800/1900
Support GSM/GPRS/EDGE and 2G/3G/4G card, but don't support 3G/4G network
Support 2 sockets, Support TCP and UDP
4KB cache for each of sockets, user can choose to cache data or not
Support register package and heart beat package
Support setting parameters via SMS message
Support multi work modes: SMS message transmission mode, network transmission mode and HTTPD mode
Support basic and extend AT command sets
Support similar RFC2217
Support flow control: RTS/CTS

Parameter

Working Voltage : DC 5~ 16V
Working Current : average:100 ~ 200mA,max:1200mA
Working Temperature : -25 ~ 85A C
Storage Temperature : -40 ~ 125A C
Storage Humidity : 5 ~ 95% RH
MAX transmit consumption : GSM900 class4 (2W), DCS1800 class1 (1W)
Working Frequency : 850/900/1800/1900MHz
Size : 44.5 x 32 x 13 mm
Network Protocol : TCP, UDP, DNS, Httpd client