3G Gateway for Ethernet and Serial Port. 1 x RS-232, 1 x RS-485 to 3G, web server, 3G router.  Has operating temperature of -25°C ~ 75°C (-13°F ~ 167°F)


3G Gateway for Ethernet and Serial Port. 1 x RS-232, 1 x RS-485 to 3G, web server, 3G router. Has operating temperature of -25°C ~ 75°C (-13°F ~ 167°F)


This item has been phased out and replaced by GRP-530M

***This Product is phased out and replaced by GRP-530M. End of Life Notification***

  • Embedded Linux system
  • Support Tri-band WCDMA 2100/1900/850 MHz and Quad-band GSM 850 / 900 / 1800 / 1900 MHz
  • 10/100 Base-TX compatible ethernet eontroller
  • COM port: COM1 (3-wire RS232), COM2 (RS-485), COM3 (3-wire RS232)
  • GPS : 32 channels with All-In-View tracking (option)
  • Support Micro SD card
  • Provide 3G Router function
  • Support port mapping function
  • Provide Serial Port to 3G Gateway
  • High reliability in harsh environments
  • DIN-Rail mountable

The GRP-520 provided by ICP DAS is a 3G gateway for Ethernet or serial port. With optional GPS model, the GRP-520 can also be a GPS tracking system. It can be used in M2M application fields to transfer the remote I/O, Modbus data or video of the camera via 3G/2G. Within the high performance CPU, the GRP-520 series can handle a large of data and are suit for the hard industrial environment. The GRP-520 series have 3G module, Ethernet interface, and optional GPS module


System / Software  
3G Gateway Ethernet and Serial port (1x RS-232, 1x RS-485) to 3G
Embedded service Web Server, 3G router
ARM CPU (312MHz)
64 MB
64 MB
EEPROM 16 KB (Data Retention: 40 years; 1,000,000 erase/write cycles)
Expansion Flash Memory SD Card (Max. 32GB SDHC)
Expansion Disk USB disk (format : FAT32)
RTC(Real Time Clock) Provide seconds, minutes, hours, day of week/month, month and year
64-bit Hardware Serial Number Yes
Watchdog Timer Yes
LED Indicator
3 LEDs (SYS/PWR, F.W., 3G)
Rotary Switch
Yes (0~9)
GSM System
Frequency Band
GSM : 850/900/1800/1900 MHz
GPRS connectivity
GPRS class 12/10; GPRS station class B
Downlink transfer: Max. 85.6 kbps; Uplink transfer: Max 42.8kbps
3G System
Frequency Band
WCDMA 2100/1900/850 MHz
Data Transmission


Downlink transfer: Max. 7.2Mbps; Uplink transfer: Max 5.76Mbps

GPS System (option)
Support Channels
Protocol Support
NMEA 0183 version 3.01
Comm. Interface

RJ-45, 10/100 Base-TX

(Auto-negotiating, Auto MDI/MDI-X, LED indicators)
RS-232 (RxD, TxD and GND); Non-isolated(Console)
RS-485 (D2+, D2-); 3000 VDC isolated
RS-232 (RxD, TxD and GND); Non-isolated
Dimensions(W x L x H) 91 mm x 132 mm x 52 mm (W x L x H)
Installation DIN-Rail
Protection Power reverse polarity protection
Frame Ground Protection ESD, Surge, EFT, Hi-Pot
Required Supply Voltage +10 VDC  ~ +30 VDC
Power Consumption 4.8W ( 200 mA @ 24 VDC)
Operation Temp. -25°C ~ to +75°C (-13°F ~ +167°F)
Storage Temp. -30°C ~ +80°C (-22°F ~ 176°F)
5~95% non-condensing

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Customer Reviews

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Reviewed on 11-30--0001 at 12:00 AM

Leslie Gold - starstarstarstarstar 5 / 5

This module is very robust as a 3G router. It integrates well with our current system. I would recommend it if you need a reliable 3G gateway for your industrial applications.

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