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Help Center800 Meters Transparent Communication UART Interface Data Collect rf Module
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Description
The VT-DTMSA5-433 module is designed as a wireless sub module for wireless communication between devices like controls, POS systems, data collectors etc. It offers several addressing modes and relieves the host systems of wireless-specific task such as checksum calculation, address resolution.
It can be deployed whenever the wireless exchange of data packet between two or more parties is required.
Thanks to its small size and the external SMA antenna connector, the module can easily be installed in existing systems without any external circuits.
Key Features
-GFSK modulation
-Communication distance up to 800 meter
-Supports addressing transparent communication
-Auto add preamble, checksum, address information
-Supports setting mode to configure parameters Channel, Interface
Band Rate, Radio Data Rate, Output Power, Source Address,
Destination Address
-UART interface
-Half Duplex communication, 8N1 format
-3.3V DC Power Supply
-Consumption: Transmit <140mA; Receive <25mA
-Optional Antenna
Application
-Automatic Meter Reading
-Wireless Sensor Network
-Data Collector
-Controls, Remote Controls
-POS Systems
-Building Automation
-Android Controls
Specification
Testing condition:Ta=25°C, VCC=3.3V
Parameter Value Condition/Note
Center Frequency 433MHz Programmable
Modulation GFSK Customize for ASK/FSK/OOK/MSK
Output Power Max: 20dBm Programmable
Sensitivity -110dBm 1.2kbps
Radio Data Rate Max 500kbps Programmable
USB Interface Rate Max 230.4kbps Programmable
Protocol Format 8N1 Programmable
Transmit Current <140mA Depend on output power
Receive Current <25mA
Distance 800 meter Open area; 20dBm; 2.4kbps
Operate Humidity 10%~90%
Operate Temperature -20℃~85℃
Input Voltage 3.3VDC±10% ±100mV
Antenna 50ohm
Size
Note:
1.Noted that higher radio data rate causes of shorter communication disdance.
2.Noted that higher radio data rate causes of lower sensitivity.
3.Noted that lower input voltage causes of lower output power.
4.Noted that the operate temperature out of range -20℃~85℃ will influence the center frequency.
5.Be sure to use a match antenna and mount it in the right way.
6.The environment will influence the communication disdance much.
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