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Products // Signal Converter  
AST777 Series

The AST777 is a DTU device for wireless data transmission terminal of Internet of Things. It can be used to connect the serial signals of instruments and meters for wireless transmission. With the convenient access to the network, AST777 can be widely applied in industry, Agriculture, environment and other fields using wireless transmission. Along with the rise of the Internet, the measurement data can be remotely monitored and analyzed via mobile phone, pad and computer.

 Industrial wireless data terminal with wide signal coverage  
 Stable & reliable, simple & flexible networking, data transfer delay <1s  
 With the supply of TTL, RS232 & RS485 communication interface  
 Data transmission between converter and server with the built-in  
protocols of TCP/IP  
 Point-to-point& one-to-multi point data transmission  
 The data terminal has the merit of always on line  
 Function of reconnecting and restarting after the connection is broken  
 Support VPN operation  
 Support the application of building user's own system  
 128 devices can be online simultaneously  


Data Rate: Power Supply:
300-115200 bps (115200 bps of default) 8-28 VDC
Serial Port Cache: Power Consumption:
10 KB Average Current
SIM Size: 40 mA@+24V (transmitting)
Standard SIM (15 * 25 mm) 20 mA@+24V (idle)
Operating Frequency: Working Temperature:
4G, 3G, 2G -20~60 oC
Transmission Range: Humidity:
Global frequency band Max. 90%
Communication Mode: Storage Temperature:
GE -30~70 oC
Europe, Middle East, Africa, Korea, Thailand Protection Class:
India IP30
GA Housing Material:
North America Aluminum alloy
GV Installation:
Verizon USA Wall mounting
GU Size:
Latin America, Australia, New Zealand 92 * 64 * 26 mm
Taiwan  Weight:
GT 0.2 kg
Telstra Australia  Accessory:
Japan Magnetic base antenna (1.5 m)
GC Power adapter
China (except for Telecom 2G, 3G) USB cable
GH Software:
Honkong, Macao Parameter setting software
Wireless Connector: Function 
SMA-K (Female) Parameter management
Interface: Operating System 
RS485 (MODBUS) All Windows system
Indicator Light:
Operational status, fault indication
128 (at most)
Data Transfer Delay:
<1 s
Data Transfer Mode:
Point-to-point / one-to-multi point
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