GT-540 - Intelligent SMS/GSM Alarm Controller
by ICP DAS

The GT-540 is an intelligent Active GPRS Remote Terminal Unit. With the high performance 32 bit CPU, the GT-540 is suited for the hard industrial environment. It features GPRS/GSM module, 6 digital inputs, 2 digital outputs, 1 analog input, 2 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 by 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, the GT-540 offers the e-mail mode to transfer the data by e-mail via GPRS for users to choose. The simple I/O linkage function of the GT-540 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, the GT-540 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 GPRS and the Internet.

System
CPU	32 bit, 96 MHz
SRAM	64 Kbytes
Flash Memory	512 Kbytes
RTC	Gives time(sec, min, hour) & date, leap year compensation from 1980 to 2079
WDT(watchdog)	Yes
SD interface	2GB max.
Serial ports
COM1	RS-232 : TxD,RxD,GND for configuration
COM2	RS-485 : D2+, D2-
Digital Input
Input Channel	6
Input Type	Sink or Source, Isolated channel with common power or ground
Off Voltage Level	+1V max.
On Voltage Level	+3.5 ~ 24 VDC
Isolated Voltage	3750Vrms
Counters	6 (16 Bit, 5~40Hz), Min. Pulse Width : 25ms
Digital Output
Channels	2
Output Type	Open-Collector (NPN) (100mA, 30V)
Load Voltage	+30 V max
Load Current	100 mA max
Isolated Voltage	3750Vrms
Analog Input
Channels	1
Resolution	12 bit
Input Range/Type	0 ~ 20 mA
GSM/GPRS system
GPRS/GSM	Quad-band 850/900/1800/1900 MHz GPRS multi-slot : class 10/8 GPRS mobile station : class B GPRS class 10 : Max download speed 85.6 kbps CSD max speed 14.4 kbps Compliant to GSM phase 2/2+ -Class 4(2W @ 900 MHz) -Class 1(1W @ 1800/1900 MHz) Coding schemes : CS 1, CS 2,CS 3,CS 4 SMS: Text and PDU mode
Power
Protection	Reverse polarity protection
Frame Ground Protection	ESD, Surge, EFT, Hi-Pot
Required Supply Voltage	+10 VDC ~ +30 VDC with 600 mAh Li-ion battery backup
Mechanical
Casing	Plastic
Flammability	UL 94V-0 materials
Dimensions (W x L x H)	91 mm x 132 mm x 52 mm
Installation	DIN-Rail
Environmental
Operating Temperature	-25 ℃ ~ +55 ℃
Storage Temperature	-40 ℃ ~ +80 ℃
Ambient Relative Humidity	5 ~ 95% RH, non-condensing

GT-540.pdf

658 K