Advantech PPC-S123, Руководство пользователя

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3 6 PPC-S123 User's Manual
Table 4-5: COM2 RS-232/422/485 setting (JP4)
*RS-232 RS-422 RS-485
* default setting
The IRQ and the address ranges for COM1, 2, 3, and 4 are fixed.
However, if you wish to disable the port or change these parameters
later you can do this in the system BIOS setup. The table overleaf
shows the default settings for the panel PC’s serial ports.
COM1 and COM2 are one set. You can exchange the address range
and interrupt IRQ of COM1 for the address range and interrupt IRQ of
COM2. After exchanging, COM2's address range is 3F8 ~ 3FF and its
request IRQ is IRQ4: and COM1's address range is 2F8 ~ 2FF and its
interrupt IRQ is IRQ3.
COM3 and COM4 are another set. Their selectable function is the
same as the COM1/COM2 set.
Table 4-6: Serial port default settings
Port Address Range Interrupt
COM1 2F8 ~ 2FF IRQ3
COM2 3F8 ~ 3FF IRQ4
COM3 3E8 ~ 3EF IRQ10
COM4 2E8 ~ 2EF IRQ5
2 4 6
1 3 5
2 4 6
1 3 5
2 4 6
1 3 5