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MODEL DOP-B07S411 DOP-B07E411 DOP-B07S411K DOP-B07S401K
LCD MODULE Display Type 7" TFT LCD (65535 colors) Resolution 800 x 480 pixels
Backlight LED Back Light (less than 20,000 hours half-life at 25o C)
Display Size 154.08 x 85.92mm
Operation System Delta Real Time OS MCU 32-bit RISC Micro-controller NOR Flash ROM Flash ROM 128 MB (OS System: 30MB / Backup: 16MB / User Application: 82MB)
SDRAM 64Mbytes Backup Memory 16Mbytes
Buzzer Multi-Tone Frequency???2K ~ 4K Hz??????85dB Ethernet Interface N/A IEEE 802.3, IEEE 802.3u N/A 10/100 Mbps auto-sensing (has built-in isolated power circuit (Note 2)) USB 1 USB Slave Ver 2.0 1 USB Host Ver 1.1 Serial COM Port COM1 RS-232(supports hardware flow control) COM2 RS-232 / RS-485 COM3 RS-422 / RS-485 Function Key N/A User defined key x 4 + System key x 4 Perpetual Calendar (RTC) Built-in Cooling Method Natural air circulation Safety Approval CE / UL Waterproof Degree IP6