VPN supporting 300MHz ARM8 CPU 3Ethernet ports remote downloading module
* Real time alarm push and checking.
* Equipment historical data checking.
* After-sales maintenance information management for the devices.
* PLC program remote downloading and monitoring.
Specification:
| CPU | 300MHz ARM Cortex-A8 | 
| Memory | 128MB Flash+128MB DDR3 | 
| Ethernet | 10M/100M Ethernet ports*3 | 
| USB Port | 1 USB Device2.0, 1 USB Host2.0 | 
| Connection | Ethernet/4G FDD LTE:B1/B3/B5/B7/B8/B20 UMTS: B1/B5/B8 GSM:850/900/1800/1900MHz | 
| IO Port | Photoelectricity Isolation Digit Input*2 Relay Output *2(Maximum 5A) | 
| COM1/COM3 | ||
| Pin1 | Rx-(B) |           ![]()  |  		
| Pin2 | RxD_PLC (COM1 RS232) | |
| Pin3 | TxD_PLC (COM1 RS232) | |
| Pin4 | Tx- | |
| Pin5 | GND | |
| Pin6 | Rx+(A) | |
| Pin7 | RxD_PLC(COM3 RS232) | |
| Pin8 | TXD_PLC(COM3 RS232) | |
| Pin9 | Tx+ | |