查看“MITX-6553 COM”的源代码


===== PWR： =====
:{| class="wikitable"
|-
! 信号名称  !! Pin  !! Pin !! 信号名称 
|-
|COM1_DCD_N  !! 1  !! 2  !! COM1_DSR_N
|-
|COM1_RXD  !! 3  !! 4  !! COM1_RTS_N
|-
|COM1_TXD  !! 5  !! 6  !! COM1_CTS_N
|-
|COM1_DTR_N  !! 7  !! 8  !! COM1_RT_N
|-
|GND  !! 9  !! 10  !! GND
|-
|NC  !! 11  !! 12  !! NC
|-
|COM2_RXD  !! 13  !! 14  !! NC
|-
|COM2_TXD  !! 15  !! 16  !! NC
|NC  !! 17  !! 18  !! NC
|-
|GND  !! 19  !! 20  !! GND
|-
|COM3_B  !! 21  !! 22  !! NC
|-
|COM3_RXD  !! 23  !! 24  !! NC
|-
|COM3_TXD  !! 25  !! 26  !! NC
|-
|NC  !! 27  !! 28  !! NC
|-
|GND  !! 29  !! 30  !! GND
|-
|COM4_B  !! 31  !! 32  !! NC
|-
|COM4_RXD  !! 33 !!34  !! NC
|-
|COM4_TXD  !! 35 !!36  !! NC
|-
|NC  !! 37 !!38  !! NC
|-
|GND  !! 39 !!40  !! GND
|-
|}