Model : GB-RFTOUSB
GB-RFTO series wireless data transmission equipment is reinforced module integrates comply protocol standard RF transceiver and the microprocessor, which has a communication distance , strong anti-jamming capability , flexible networking, and other advantages and features ; can achieve transparent transmission of data between devices multipoint and multipoint between ; may form mESH type of star and mesh network structure.
GB-RFTO series wireless data transmission equipment Serial RS232, transparent transmission of USB, WIFI, NET data , in addition to achieve a general point data communications capabilities , but also for network communication between multiple points .
GB-RFTO series wireless data transmission equipment into the center coordinator , routers and end nodes , these three devices with different network functions , the center coordinator is the central node of the network, the sponsoring organization is responsible for the network, network maintenance and management functions ; relay router is responsible for forwarding data terminal nodes only transmit and receive the data node . Center coordinator , routers and end nodes of these three types of devices in the hardware configuration is exactly the same , just different device parameters .
1 ,Module Features
The main function description :ByConversion between the USB interface and wireless through wireless conduct group network communication ;
Wireless powerful:With relay routing function ;
Communication distance :The maximum line of sight transmission distance up to 2000 meters ;
Anti-interference ability :2.4G DSSS spread spectrum technology ;
Serial flexible application :Transparent transmission mode or instruction format , the maximum baud rate 115200 ;
Flexible transmit mode :Send broadcast or destination address mode selectable ;
Flexible node types :The central node , the routing nodes, terminal nodes can be arbitrarily set ;
Networking ability :Star network , tree network , chain mesh, mesh network ;
Greater network capacity :16-channel selectable, 65535 Network ID can be set
2,Interface Description
No. | Grade | Description |
1 | USB1 | USB interface and PCUSBConnected |
2 | J1 | Programming and debugging interface |
3 | A1 | Module antenna interface to send and receive data remotely if needed to connect an external antenna |
3 ,Electrical / Performance Parameters
Project | Description |
Supported operating systems | Support windows98SE/2000/XP/vista/server 2003/win7 |
Support Mac OS-X/OS-9 |
Support for linux |
USB client interface protocol | Compliance with USB version2.0 specification |
USB physical interface | USB A -type male |
Power Supply | USB powered, no external power supply |
Operating Temperature | -40 ~ +85 |
Humidity | 0 ~ 95 % non-condensing |
Operating Frequency | 2.4G ISM band global free |
Modulation | DSSS Direct Sequence Spread Spectrum |
Transmit Power | 19dbm |
Serial communication speed | Can be set from 1200 to 115200 |
Transmission mode | Send broadcast or destination address |
Network Topology | Star, tree , chain , mesh |
Peak current | 160mA |
Antenna connection | Glue stick antenna , suction cup antenna , feeder + glue stick antenna , fiberglass antenna |
4,Module Application
Remote automatic meter reading AMR system
Food safety traceability system
Wireless street light control system
Modern agricultural greenhouses Systems
smart home, smart home
RFID data transmission
Instruments data acquisition and transmission
Wireless sensor data transmission
Underground personnel positioning system
5 ,Module Resources
( 1 )Master module :GB2530
(2) RF to USB serial chip : CP2102
( 3 ) Antenna:2.4G reverse polarity antenna
( 4 ) programming port: 2.0Mm pitch is used for female
6 ,Programming port (J1) Description
P2_2----- DEBUG function pin DC
P2_1----- DEBUG function pin DD
GND ------ power supply , the power supply is negative
The positive input of the power supply VDD -----
REST_N ---- reset pin , active low
Interface for Debug, programming, program download , Packet Sniffer, SmartRFStudio7
7 ,GB-RFTOUSB schematics
The following are the results of field testing company staff on GB2530H module
Test time:2011-12-04In the afternoon2Point to5Point Sunday
Weather conditions : sunny,7-15Celsius , the breeze
First, open area test ( lake unobstructed )
2011-12-04In the afternoon2Point to4Point00Points, for2530High power modules in Nanchang Hi-tech Zone Aixihu test specific location following screenshot ( as Baidu maps and Ranging ) :
The test3Endpoints , namely the distance1.9Km2.7Km and3.9Km :
1 ,In the distance1.9Km , the signal intensity -60DB, Contracting200Test10Times , the success rate of the closing package100%, No packet loss and packet error ;
2 ,In the distance2.7Km , the signal intensity -65DB, Contracting200Test10Times , the success rate of the closing package100%, No packet loss and packet error ;
3, The distance3.9Km , the signal intensity -70DB, Contracting200Test10Times , packet loss rate0.2%Or less , in line with1%The loss licensing
