GT-540

智能GPRS远程终端单元

· Automatic/continuous 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 GPRS I/O devices · Support data transferring by E-mail · Local I/O linkage function to make the simple local control · Support 3.7V Li-ion Battery backup · Power supply 10 ~ 30 VDC

System

CPU 32 bit CPU

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 ~ 30 VDC

Isolated Voltage 3750Vrms

Counters 6 (16 Bit, 5~40Hz), Min. Pulse Width : 25ms

Digital Output

Channels 2

Output Type Open-Collector (NPN) (100mA@30VDC)

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

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

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

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 ℃ ~ +75 ℃

Storage Temperature -40 ℃ ~ +80 ℃

Ambient Relative Humidity 5 ~ 95% RH, non-condensing

GT-540 CR Intelligent GPRS Remote Terminal Unit (RoHS, include: 2G micro SD card)

ANTm external GPRS/GSM antenna

BT6003.7V 600 mAh Battery

BT12003.7V 1200 mAh Battery

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