查看“BPC-7938 COM”的源代码

[[文件:BPC-7938-COM.jpg|600px|缩略图|BPC-7938-COM]]
===== COM1 2： =====
:{| class="wikitable"
|-
! Pin !! COM1 2A !! COM1 2B
|-
| 1 || HDCD#1TX-DATA- || HDCD#2TX-DATA-
|-
| 2 || HSIN1TX+DATA+ || HSIN2TX+DATA+
|-
| 3 || HSOUT1RX+ || HSOUT2RX+
|-
| 4 || HDTR#1RX- || HDTR#2RX-
|-
| 5 || GND || GND
|-
| 6 || HDSR#1 || HDSR#2
|-
| 7 || HRTS#1 || HRTS#2
|-
| 8 || HCTS#1 || HCTS#2
|-
| 9 || HRI#1 || HRI#2
|}

===== COM2-5： =====
:{| class="wikitable"
|-
! 信号名称 !! Pin !! Pin !! 信号名称
|-
| DCD || 1 || 2 || DSR#
|-
| SIN || 3 || 4 || RTS#
|-
| SOUT || 5 || 6 || CTS#
|-
| DTR || 7 || 8 || RI#
|-
| GND || 9 || 10 || GND
|}

===== COM6： =====
:{| class="wikitable"
|-
! 信号名称 !! Pin !! Pin !! 信号名称
|-
| DCD#2TX-DATA- || 1 || 2 || COM2_DSR#
|-
| SIN2TX+DATA+ || 3 || 4 || COM2_RTS#
|-
| SOUT2RX+ || 5 || 6 || COM2_CTS#
|-
| DTR#2DTR || 7 || 8 || COM2_RI#
|-
| GND || 9 || 10 || GND
|}