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GT-540

Intelligent GPRS Remote Terminal Unit

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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
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 1200 mAh Li-ion battery backup (option)
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