RTU Modem WCDMA (3G) + GPS+ 1 kênh AI + 6 kênh DI + 2 kênh DO+ RS-485 Modbus ICP DAS GT-540P-3GWA CR

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GT-540P-3GWA CR 3G Remote Terminal Unit with GPS (RoHS) (Asia Only)

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RTU Modem WCDMA (3G) + GPS+ 1 kênh AI + 6 kênh DI + 2 kênh DO+ RS-485 Modbus ICP DAS GT-540P-3GWA CR


  • Automatic/continuous WCDMA/GPRS Link Management.
  • Support Modbus RTU protocol to connect to Max 3 Modbus RTU devices via RS-485 port.
  • Support M2M OPC server for SCADA system.
  • Easy-to-use API tool for users to develop their applications by various program development tools.
  • Be the WCDMA/GPRS I/O devices.
  • Support GPS function.
  • Local I/O linkage function to make the simple local control.
  • Support 3.7V Li-ion Battery backup.
  • Power supply 10 ~ 30 VDC.


GT-540P-3GWA is an intelligent Active 3G Remote Terminal Unit with GPS. Within the high performance 32 bit CPU, GT-540P-3GWA is suit for the hard industrial environment. It features 3G module, 6 digital inputs, 2 digital outputs, 1 analog input, 1 RS-232, 1 RS-485 and SD interface. It can be used in M2M application fields to transfer the local I/O, GPS and Modbus device's data via WCDMA/GPRS by the defined period or DI/AI triggers. The local I/O and GPS data can also be stored in the SD card to become a remote data logger. For another communication path, GT-540P-3GWA offers the E-mail mode to transfer the data by E-mail via WCDMA/GPRS for users to choose. The simple I/O linkage function of GT-540P-3GWA can reach the real time control in the local field. It also supports Li-ion battery as another power source when the main power is failed temporarily. Therefore, GT-540P-3GWA is an ideal solution for environmental monitoring, remote device management and vehicle monitoring system for M2M applications. Meanwhile, it is supplied with easy-to-use API and OPC server Software that streamline application development process, freeing system integrators from dealing with complex communication protocols of WCDMA/GPRS and the Internet.


Service RTU


CPU Module
CPU 32 bit CPU
Flash 512 Kbytes
SRAM 64 Kbytes
Storage Expansion 4GB max.
Real Time Clock Gives time(sec, min, hour) & date, leap year compensation from 1980 to 2079
Watchdog Timer Yes


LED Indicators
Status 1 x EXT
1 x 3G
1 x STA
1 x GPS


2G System
Coding Schemes CS 1, CS 2,CS 3,CS 4
Downlink transfer: Max. 85.6 kbps; Uplink transfer: Max. 42.8kbps
Frequency Band 850/900/1800/1900 MHz
GPRS Multi-slot GPRS class 12; GPRS station class B
Power Class Class 4 (2 W @ 850/900 MHz)
Class 1 (1 W @ 1800/1900 MHz)


3G System
Data Transmission HSPA
Downlink transfer: Max. 7.2 Mbps; Uplink transfer: Max 5.76 Mbps
HSDPA Max. 7.2 Mb/s
WCDMA Max. 384 kb/s Download/Upload link
Frequency Band WCDMA 850/900/1900/2100 MHz
Power Class Class 3 (250mW @ WCDMA/HSPA)


Acquisition Time Hot start (Open Sky) = 2 s(typical)
Cold start (Open Sky) = 36 s(typical)
Protocol GPRMC format (NMEA 0183 version 3.01)
Sensitivity Tracking = up to -159 dBm (with external LNA)
Cold start = up to -146 dBm (with external LNA)
Support Channels 32


Analog Input
Channels 1
Type Current
Range 0 ~ 20 mA
Resolution 12 bit


Digital Input
Channels 6
Type Sink or Source, Isolated channel with common power or ground
Wet Contact, ON Voltage Level +3.5 ~ 30 VDC
Wet Contact, OFF Voltage Level +1V max.
Isolation 3750Vrms


Digital Input/Counter
Response Speed 6 (5~40Hz), Min. Pulse Width : 25ms


Digital Output
Channels 2
Type Open-Collector (NPN) (100mA@30VDC)
Load Voltage +30 V max.
Max. Load Current 100 mA max.
Isolation 3750Vrms


COM Ports
Ports 1 x RS-232 (Configuration)
1 x RS-485


Consumption Idle: 65 mA @ 24 VDC; Data Link: 170 mA @ 24 VDC; Peak: 450 mA @ 24 VDC


Casing Plastic
Dimensions (mm) 91 x 132 x 52 (W x L x H)
Installation DIN-Rail


Operating Temperature -25 ℃ ~ +75 ℃
Storage Temperature -40 ℃ ~ +80 ℃
Humidity 5~95% RH, non-condensing


Data Sheet


Ordering information

GT-540P-3GWA     CR  3G Remote Terminal Unit with GPS (RoHS) (Asia Only)

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