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产品介绍：The LP-5231PM-3GWA is equipped a Cortex-A8 CPU (1GHz) and running a Linux operating system. The optional I/O expansion board, XV-board, provides high-protection I/O. Using the built-in Flash and microSD, the LP-5231PM-3GWA can save application program, image file and data.
The 3G module work on frequencies of WCDMA 2100/1900/900/850 MHz and GSM 850/900/1800/1900 MHz. These modules utilize the 3G network for convenient and inexpensive data transfer from remote instruments, meters, computers or control systems in either live data or packet data. These modules has the integrated TCP/IP stack so that even simple controllers with serial communications ports can be connected to the modem without the need for special driver implementation. With the features of theirs, the systems can be SMS and GPRS or 3G connection applications with our PAC.
产品特点：
- Linux kernel 3.2.14 Inside
- Cortex-A8 (1.0 GHz)
- Embedded Service: Web Server, FTP Server, Telnet Server, SSH Server
- 64-bit Hardware Serial Number
- I/O Expansion Bus: XV-Board
- Redundant Power Inputs
- Operating Temperature: -25 ~ +75 °C
产品规格：
| System Software | |
| OS | Linux Kernel 3.2.14 |
| Embedded Service | SFTP server, Web server, SSH |
| SDK Provided | LinPAC SDK (GCC based toolchain and LinPAC Libraries) |
| CPU Module | |
| CPU | Cortex-A8, 1GHz |
| DDR3 SDRAM | 512 MB |
| Flash | 512 MB |
| EEPROM | 64 KB |
| Expansion Flash Memory | microSD socket with one 4 GB microSD card (support up to 32 GB microSDHC card) |
| RTC (Real Time Clock) | Provide second, minute, hour, date, day of week, month, year |
| 64-bit Hardware Serial Number | Yes, for Software Copy Protection |
| Dual Watchdog Timer | Yes |
| LED indicator | 1 LED for Power and Running; 2 LED for user defined |
| Rotary Switch | Yes (0 ~ 9) |
| VGA & Communication Ports | |
| VGA and Communication Ports | VGA x 1 (max. resolution up to 1280 x 1024) |
| Ethernet | RJ-45 x 1, 10/100/1000 based-T (Auto-negotiating, Auto MDI/MDI-X, LED indicators) |
| USB 2.0 (host) | 1 |
| Console Port | RS-232 (RxD, TxD and GND); Non-isolated |
| ttyO2 | RS-485 (Data+, Data-); Non-isolated |
| ttyO4 | RS-232 (RxD, TxD and GND); Non-isolated |
| ttyO5 | RS-485 (Data+, Data-); 2500 VDC isolated |
| I/O Expansion Slots | |
| I/O Expansion Bus | Yes, one optional XV-board |
| Mechanical | |
| Casing | metal |
| Dimensions (W x L x H) | 117 mm x 126 mm x 58 mm |
| Installation | DIN-Rail、Wall Mounting |
| Environmental | |
| Operating Temperature | -25 to +75°C |
| Storage Temperature | -40 to +80°C |
| Ambient Relative Humidity | 10 to 90% RH (non-condensing) |
| Power | |
| Input Range | +12 VDC ~ +48 VDC |
| Consumption | 6.5 W |
| GSM System | |
| Frequency Band | GSM: 850/900/1800/1900 MHz |
| GPRS Connectivity | GPRS class 12/10; GPRS station class B |
| Data GPRS | Downlink transfer: Max. 85.6 kbps; Uplink transfer: Max 42.8k bps |
| 3G System | |
| Frequency Band | WCDMA 850/900/1900/2100 MHz |
| Data Transmission | WCDMA / HSPA+, Download: Max. 14.4Mbps; Upload: Max 5.76Mbps |
| GPS System | |
| Support Channels | 32 |
| Protocol Support | NMEA 0183 |
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