EVOC MEC--5004, User Manual

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第二章 安装说明
­ 10 ­ MEC­5004
管脚 COM2、COM3 信号名称 管脚 COM4、COM5 信号名称
1 COM2_DCD- 23 GND
2 COM2_RXD 24 COM4_DTR-
3 COM2_TXD 25 COM4_DSR-
4 GND 26 COM4_RTS-
5 COM3_DCD- 27 GND
6 COM3_RXD 28 COM5_DTR-
7 COM3_TXD 29 COM5_DSR-
8 GND 30 COM5_RTS-
9 COM4_DCD- 31 COM2_CTS-
10 COM4_RXD 32 COM2_RI-
11 COM4_TXD 33 GND
12 GND 34 GND
13 COM5_DCD- 35 COM3_CTS-
14 COM5_RXD 36 COM3_RI-
15 COM5_TXD 37 GND
16 COM2_DTR- 38 GND
17 COM2_DSR- 39 COM4_CTS-
18 COM2_RTS- 40 COM4_RI-
19 GND 41 GND
20 COM3_DTR- 42 GND
21 COM3_DSR- 43 COM5_CTS-
22 COM3_RTS- 44 COM5_RI-
注意：COM2、COM3、COM4、COM5 四个串口与外接线材丝印对应关系如下：
串口 COM2 COM3 COM4 COM5
丝印 D C B A