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RS485 GSM GPRS Modem, RS485 to GPRS
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Buy it now include $25 shipping cost. |
Unique Features
1.Support GSM850/900 DCS1800/1900
2.Support Httpd Client
3.Support GSM/GPRS and 2G/3G/4G card, but don't support 3G/4G network
4.Support SMS transmission mode, network transmission mode and HTTPD mode
Introduction
This is a RS485 to gprs modem,used for data transparent transmission. USR-GPRS232-734 GPRS DTU (Data Transfer unit) is a wireless terminal equipment which can convert serial data to IP data or convert IP data to serial data through gprs network. Clients can use this product to realize bidirectional transparent transmission from serial port to network through simple AT command.
Feature
- Each connection support 4KB data cache, when in abnormal connection choosing data cache to avoid data lost
- Support sending registration package and heartbeat package data
- Support remote configuration via SMS
- Support basic instruction set and extension instruction set
- Support establishing, maintaining and closing network connection by using extension instruction set, more flexibility in application
- Support sending Chinese/English SMS via simple instructions, avoiding PDU sending Chinese SMS which complex and hard use
- Support class RFC2217,can modify module serial parameter via network dynamically
- Support wide voltage 5~36V power supply, using DC power supply and terminal power supply
- RS485 circuit using electrical isolation scheme, has anti-interference ability
Parameter
| Wireless Parameter | |
| Wireless Standard | GSM/GPRS/EDGE |
| Standard Frequency Band | 850/900/1800/1900MHz |
| Transmitted Power | GSM900 class4 (2W) |
| DCS1800 class1 (1W) | |
| GPRS Terminal Device Class | Class B |
| GPRS Multi-slot Class | GPRS Class 10 |
| GPRS Coding Schemes | CS1 ~ CS4 |
| Antenna Option | SMA interface |
| Hardware Parameter | |
| Data Interface | RS485 level, 5.08*3 terminals |
| Baud Rate | 2400bps - 921600bps |
| Working Voltage | DC 5V~36V |
| Working Current | 59mA ~ 65mA (12V) |
| Operating Temp. | -25 - 85 degree |
| Storage Temp. | -40 - 125 degree |
| Size | 82.5 * 86.0 * 24.0 mm |
| RS485 reliability | Electrical Isolation |
| ESD air 15KV | |
| Surge 4KV (8/20us) | |
Function Diagram
| Wireless Parameter | |
| Wireless Standard | GSM/GPRS/EDGE |
| Standard Frequency Band | 850/900/1800/1900MHz |
| Transmitted Power | GSM900 class4 (2W) DCS1800 class1 (1W) |
| GPRS Terminal Device Class | Class B |
| GPRS Multi-slot Class | GPRS Class 10 |
| GPRS Coding Schemes | CS1 ~ CS4 |
| Antenna Option | SMA interface |
| Hardware Parameter | |
| Data Interface | RS485 level, 5.08*3 terminals |
| Baud Rate | 2400bps - 921600bps |
| Working Voltage | DC 5V~36V |
| Working Current | 59mA ~ 65mA (12V) |
| Operating Temp. | -25° - 85° |
| Storage Temp. | -40° - 125° |
| Size | 82.5 * 86.0 * 24.0 mm |
| RS485 reliability | Electrical Isolation ESD air 15KV Surge 4KV (8/20us) |
| Software Parameters | |
| Wireless Network Type | GSM/GPRS/EDGE |
| Working Mode | Transparent transmission mode, SMS transparent transmission mode and HTTPD mode |
| Setting Command | AT+ Command structure |
| Network Protocol | TCP/UDP/DNS/HTTP |
| Max. TCP Connection | 2 |
| User Configuration | Serial AT command, network AT Command, SMS AT Command |
| User Internet Applications | Support custom application software |
| Software Functions | |
| DNS | Support |
| Simple Transparent Transmission mode | Support TCP Client /UDP Client |
| HTTP protocol transmission | Support |
| SMS transparent transmission | Support |
| Heartbeat Package | Support |
| Class RFC2217 | Support |
| Registration Package Mechanism | Support custom/ICCID/IMEI registration package |
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User Manual
[User Manual] USR-GPRS232-734 User Manual | download
[AT Commands]USR-GPRS232-730&734-AT commands V1.0.0 | download
Application Software
[USR-GM3] Setup-Software_V1.2.1.101 | download
Product Certificate
[CCC Certificate]CCC-Certificates-Wireless-Data-Terminal-2018 | download
[Certificate] Certificate for China Compulsory Product Certification | download
[CE Certificates] USRIOT 2G Wireless Module CE Certificates | download
Company File