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GRP-520 User Manual, V1.00, Mar. 2013
2. Hardware
2.1 Specifications
Item
System / Software
3G Gateway
GRP-520
Ethernet and Serial port (1x RS-232, 1x RS-485) to 3G
Embedded service Web Server, 3G router
System
CPU
SRAM
Flash
EEPROM
Expansion Flash Memory
ARM CPU (312MHz)
64 MB
64 MB
16 KB (Data Retention: 40 years; 1,000,000 erase/write cycles)
SD Card (Max. 32GB SDHC)
Expansion Disk
RTC(Real Time Clock)
USB disk (format : FAT32)
Provide seconds, minutes, hours, day of week/month, month and year
64-bit Hardware Serial Number Yes
Watchdog Timer Yes
LED Indicator
Rotary Switch
3 LEDs (SYS/PWR, F.W., 3G)
Yes (0~9)
GSM System
Frequency Band
GPRS connectivity
DATA GPRS
3G System
Frequency Band
GSM : 850/900/1800/1900 MHz
GPRS class 12/10; GPRS station class B
Downlink transfer: Max. 85.6 kbps; Uplink transfer: Max 42.8kbps
Data Transmission
WCDMA 2100/1900/850 MHz
WCDMA / HSDPA / HSUPA
Downlink transfer: Max. 7.2Mbps; Uplink transfer: Max 5.76Mbps
GPS System (option)
Support Channels
Protocol Support
Comm. Interface
32
NMEA 0183 version 3.01
Ethernet
COM1
COM2
COM3
Mechanism
RJ-45, 10/100 Base-TX
(Auto-negotiating, Auto MDI/MDI-X, LED indicators)
RS-232 (RxD, TxD and GND); Non-isolated(Console, Debug)
RS-485 (D2+, D2-); 3000 VDC isolated
RS-232 (RxD, TxD and GND); Non-isolated
Casing Plastic
Dimensions(W x L x H) 91 mm x 132 mm x 52 mm (W x L x H)
DIN-Rail Installation
Power
Protection
Frame Ground Protection
Required Supply Voltage
Power Consumption
Environment
Operation Temp.
Storage Temp.
Humidity
Power reverse polarity protection
ESD, Surge, EFT, Hi-Pot
+10 V
DC
~ +30 V
DC
4.8W ( 200 mA @ 24 V
DC
)
-25℃ to 75℃
-30℃ to 80℃
5~95% non-condensing
8
2.2 Appearance and pin assignments
GRP-520 User Manual, V1.00, Mar. 2013
COM Port & Power Input
Terminal No. Pin Assignment
COM1
COM2
COM3
Power
01
08
09
10
02
03
04
05
06
07
RxD1
TxD1
GND
D+
D-
RxD3
TxD3
DC.+VS
DC.GND
F.G.
9
2.3 Dimensions
GRP-520 User Manual, V1.00, Mar. 2013
10
GRP-520 User Manual, V1.00, Mar. 2013
2.4 LED indicators
There are three LED indicators to help users to judge the various conditions of GRP-520.
The description is as follows：
A. PWR(Green)：Power LED to indicate whether the external power is input or not. The description is as follows:
The external power is active The external power is not active on off
B. OS(Red)：OS LED indicates if the OS is normal or fail.
Normal
Heart beat (1 sec.)
Fail
Always ON or OFF
C. FW(Red)：This LED indicates the status of VxServer firmware (Serial port to 3G).
Connected
500ms ON / 500ms OFF
Connecting
Blanking(4 sec)
Fail
Always ON or OFF
D. 3G (Red)：The LED indicates the status of 3G module.
(the 3G module need about 60 seconds to register network usually)
Registered
800ms ON / 800ms OFF
3G/GPRS data transmit
200ms ON, 200ms OFF
Fail
Always ON or OFF
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GRP-520 User Manual, V1.00, Mar. 2013
2.5 Installing GRP-520
If users want to start GRP-520 normally, it needs to follow these steps to install the
GRP-520 below:
A. Install the antenna
B. Plug in the normal SIM card (Before apply the SIM card, confirm it is OK by mobile phone.)
C. Plug the Ethernet cable if you need it.
D. If you want to use the Micro SD card, please insert it into the slot.
E. Turn the rotary switch to 0 (normal mode). The COM1 will be the console in position 1
(debug mode), and the default username is “root”, default password is “root”.
F. Connect the DC.+VS and DC.GND to the power supply.
G. It is needed to wait about 20 ~ 30 seconds for OS booting. After finishing the process,
GRP-520 would be in normal operation mode and the OS LED would blank as heart beat per 1 sec.
H. It is needed to wait about 30 ~ 60 seconds to search the 3G/2G base and register to the
ISP. After finishing the process, the 3G LED would blank per 1 sec.
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