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4.4
COM Port Interface
The computer provides totally ten serial ports for difference uses. Six of ten serial ports
(COM1~COM6) are implemented with Super I/O chip and their physical address are
fixed. And the other four serial ports are done by a USB serial converter, and need driver
support to work. In Advantech provided WES (Windows Embedded Standard) and Win
CE 6.0 OS, the four USB-to-Serial serial ports are fixed from COM8 to COM11).
Table 4.7: Serial Port Function
Port
COM1
COM2
COM3
COM4
COM5
COM6
COM8
COM9
COM10
COM11
Table 4.7: Serial Port Settings
Port
COM1
COM2
COM3
COM4
COM5
COM6
TREK-550 User Manual
Function
2-wire RS-232 (TXD/RXD) for TREK-303
3-wire RS-232 (TXD/RXD/RTS) for Touch on TREK-303
Full functional RS-232
For power management control
RS-485
J1708
Full functional RS-232
4-wire RS-232 (TXD/RXD/RTS/CTS)
For WWAN module
For WWAN module
Address Range
3F8 ~ 3FF
2F8 ~ 2FF
2E8 ~ 2EF
2D8 ~ 2DF
2E0 ~ 2E7
Interrupt
4
3
5
7
10
11
28
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