LG PQNFB17B0 - Manual (Page 10)

Specification (hardware)
1. CPU: PXA256-400MHz Xscale
2. RAM: 128MB (32 x 4) SDRAM
3. ROM: 512KB NOR Flash – Boot image
128MB (64 x 2) NAND Flash – Program image, database, etc.
4. RS-232 Console : For updating (developing) the program
5. Communication port
• RS-485 port : PI485 communication port 4EA (connecting the air conditioner and the ventilator),
RS-485 port 2EA for connecting the outdoor unit (reserved)
• RS-232 communication port : Port 1EA for upgrading the program
• LAN port : 1EA for the Internet connection (Ethernet 10Base-T Ethernet)
1EA for reserved
6. External input port: 20EA (Pulse countable, DC 12V) extended to the external
External output port : Digital output x 4EA (Relay output, 5V) – DO2~4 : reserved
7. LED: 20EA (RS-485 communication status display / Ethernet communication status display /
RS-232 communication status display / Power & operation status display)
8. LCD : 16 x 2 character
IP address setup and Network environment & information display
Note: This product conforms to the GPL (General Public License) for using the Embedded Linux.
10 BACnet Gateway
Main features & Specification