查看“ATX-6992 COM”的源代码

[[文件:ATX-6992 COM1，COM2，COM3-COM6，J9.jpg|600px|缩略图|ATX-6992 COM1，COM2，COM3-COM6，J9]]
===== COM1： =====
{| class="wikitable"
|-
! Pin !! 信号名称 
|-
| 1 || DATA-
|-
| 2 || DATA+
|-
| 3 || HSOUT1RX+
|-
| 4 || HDTR#1RX
|-
| 5 || GND
|-
| 6 || DSR#
|-
| 7 || RTS#
|-
| 8 || CTS#
|-
| 9 || RI
|}


===== COM2-COM6： =====
{| class="wikitable"
|-
! 信号名称 !! Pin !! Pin !! 信号名称 
|-
| DATA-|| 1 || 2 || DSR#
|-
| DATA+ || 3 || 4 || RTS#
|-
| HSOUTRX+ || 5 || 6 || CTS#
|-
| DTR#RX || 7 || 8 || RI_L
|-
| GND || 9 || 10 || COM_PIN10
|}

===== J9： =====
{| class="wikitable"
|-
! Pin !! COM PIN10 
|-
| 1-2|| +5V
|-
| 2-3|| +12V
|}