Trang chủ » Wireless Communication » Modem GPRS RTU 6 kênh DI + 2 kênh DO + 1 kênh AI + thẻ nhớ SD + kết nối Modbus RS-232/485 ICP DAS GT-540-3GWA

Modem GPRS RTU 6 kênh DI + 2 kênh DO + 1 kênh AI + thẻ nhớ SD + kết nối Modbus RS-232/485 ICP DAS GT-540-3GWA

Intelligent GPRS Remote Terminal Unit (RoHS, include: 2G micro SD card)

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Model: GT-540-3GWA
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Modem GPRS RTU 6 kênh DI + 2 kênh DO + 1 kênh AI + thẻ nhớ SD + kết nối Modbus RS-232/485 ICP DAS GT-540-3GWA

GT-540-3GWA is an intelligent Active 3G Remote Terminal Unit. Within the high performance 32 bit CPU, GT-540-3GWA is suit for the hard industrial environment. It features 3G(WCDMA) 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 or Modbus device’s data via GPRS by the defined period or DI/AI triggers. The local I/O data can also be stored in the SD card to become a remote data logger. For another communication path, GT-540-3GWA offers the e-mail mode to transfer the data by e-mail via 3G for users to choose. The simple I/O linkage function of GT-540-3GWA can reach the real time control in local field. It also supports Li-ion battery as another power source when the main power is failed temporarily. Therefore, GT-540-3GWA is an ideal solution for environmental monitoring and remote device management 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 3G 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
2G System
Data Transmission Rate GPRS
Downlink transfer: Max. 85.6 kbps; Uplink transfer: Max. 42.8kbps
Frequency Band 850/900/1800/1900 MHz
Coding Schemes CS 1, CS 2,CS 3,CS 4
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 Rate 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)
Analog Input
Channels 1
Type Current
Range 0 ~ 20 mA
Resolution 12 bit
Isolation 3750Vrms
Digital Input
Channels 6
Type Wet Contact
Sink/Source (NPN/PNP) Sink/Source, Isolated channel with common power or ground
ON Voltage Level +3.5 ~ 30 VDC
OFF Voltage Level +1V max.
Response Speed 6 (5~40Hz), Min. Pulse Width : 25ms
Isolation 3750Vrms
Digital Output
Channels 2
Type Open-Collector (NPN) (100mA@30VDC)
Load Voltage +30 V max.
Load Current 100 mA max.
Isolation 3750Vrms
COM Ports
Ports 1 x RS-232 (Configuration)
1 x RS-485 (Modbus device)
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
GT-540-3GWA     CR  3G Remote Terminal Unit (RoHS) (Asia Only)