查看“MATX-6551 COM”的源代码

[[文件:MATX-6551 COM1-2，COM3-4，JCOM1-4，JCOM5-8.jpg|600px|缩略图|MATX-6551 COM1-2，COM3-4，JCOM1-4，JCOM5-8]]
===== COM3 跳线功能设置（J3，J4）： =====
:{| class="wikitable"
|-
|colspan=2|COM3  RS232 PORT   ||colspan=2|COM3  RS485 PORT
|-
| J3 || 1-3  2-4 || J3|| 3-5  4-6
|-
| J4 || 1-3  2-4 || J4 || 3-5  4-6

|}

===== COM4 跳线功能设置（J5，J6）： =====
:{| class="wikitable"
|-
|colspan=2|COM4  RS232 PORT   ||colspan=2|COM4  RS485 PORT
|-
| J5 || 1-3  2-4 || J5 || 3-5  4-6
|-
| J6 || 1-3  2-4 || J6 || 3-5  4-6

|}

===== COM1-2A： =====
{| class="wikitable"
|-
! Pin !! 信号名称 
|-
| 1 || COM1_DCD
|-
| 2 || COM1_RXD
|-
| 3 || COM1_TXD
|-
| 4 || COM1_DTR
|-
| 5 || GND
|-
| 6 || COM1_DSR
|-
| 7 || COM1_RTS
|-
| 8 || COM1_CTS
|-
| 9 || COM1_RI
|}

===== COM1 - 2B（Debug）： =====
{| class="wikitable"
|-
! Pin !! 信号名称 
|-
|1 || NC
|-
|2 || COM2_RXD
|-
|3 || COM2_TXD
|-
|4 || NC
|-
|5 || GND
|-
|6 || NC
|-
|7 || NC
|-
|8 || NC
|-
|9 || NC
|}

===== COM3-4A： =====
{| class="wikitable"
|-
! Pin !! 信号名称 
|-

|1 || COM3_B
|-
|2 || COM3_RXD/A
|-
|3 || COM3_TXD
|-
|4 || NC
|-
|5 || GND
|-
|6 || NC
|-
|7 || NC
|-
|8 || NC
|-
|9 || NC
|}

===== COM3-4B： =====
{| class="wikitable"
|-
! Pin !! 信号名称 
|-

|1 || COM4_B
|-
|2 || COM4_RXD/A
|-
|3 || COM4_TXD
|-
|4 || NC
|-
|5 || GND
|-
|6 || NC
|-
|7 || NC
|-
|8 || NC
|-
|9 || NC
|}

===== JCOM1-4： =====
{| class="wikitable"
|-
! 信号名称 !! Pin !! Pin !! 信号名称 
|-
|-
|NC || 1 || 2 || NC
|-
|JCOM1_RX || 3 || 4 || JCOM1_RTS
|-
|JCOM1_TX || 5 || 6 || JCOM1_CTS
|-
|NC || 7 || 8 || NC
|-
|GND || 9 || 10 || GND
|-
|NC || 11 || 12 || NC
|-
|JCOM2_RX || 13||14 || JCOM2_RTS
|-
|JCOM2_TX || 15 || 6 || JCOM2_CTS
|-
|NC || 17 || 18 || NC
|-
|GND || 19 || 20 || GND
|-
|NC || 21 || 22 || NC
|-
|JCOM3_RX || 23 || 24 || JCOM3_RTS
|-
|JCOM3_TX || 25 || 26 || JCOM3_CTS
|-
|NC || 27 || 28 || NC
|-
|GND || 29 || 30 || GND
|-
|NC || 31 || 32 || NC
|-
|JCOM4_RX || 33 || 34 || JCOM4_RTS
|-
|JCOM4_TX || 35 || 36 || JCOM4_CTS
|-
|NC || 37 || 38 || NC
|-
|GND || 39 || 40 || GND
|}

===== JCOM5-8： =====
{| class="wikitable"
|-
! 信号名称 !! Pin !! Pin !! 信号名称 
|-
|-
|NC || 1 || 2 || NC
|-
|JCOM5_RX || 3 || 4 || JCOM5_RTS
|-
|JCOM5_TX || 5 || 6 || JCOM5_CTS
|-
|NC || 7 || 8 || NC
|-
|GND || 9 || 10 || GND
|-
|NC || 11 || 12 || NC
|-
|JCOM6_RX || 13||14 || JCOM6_RTS
|-
|JCOM6_TX || 15 || 6 || JCOM6_CTS
|-
|NC || 17 || 18 || NC
|-
|GND || 19 || 20 || GND
|-
|NC || 21 || 22 || NC
|-
|JCOM7_RX || 23 || 24 || JCOM7_RTS
|-
|JCOM7_TX || 25 || 26 || JCOM7_CTS
|-
|NC || 27 || 28 || NC
|-
|GND || 29 || 30 || GND
|-
|NC || 31 || 32 || NC
|-
|JCOM8_RX || 33 || 34 || JCOM8_RTS
|-
|JCOM8_TX || 35 || 36 || JCOM8_CTS
|-
|NC || 37 || 38 || NC
|-
|GND || 39 || 40 || GND
|}