查看“MITX-6553 COM”的源代码

[[文件:MITX-6553 COM1_4，JCOM1_4，JCOM5_8.jpg|600px|缩略图|MITX-6553 COM1_4，JCOM1_4，JCOM5_8]]
===== COM1_4： =====
:{| 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
|-
|}
===== 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	||16	||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	||16	||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
|-
|}

===== 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

|}