EVOC MEC--5004, User Manual

Page: 13 / 36

Chapter 2 Installation
­ 10 ­ MEC­5004
Pin
COM2, COM3 Signal
Pin
COM4, COM5 Signal
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
Note: The corresponding relationship between the four serial ports (COM2,
COM3, COM4, COM5) and external wire silk­screen is showed as follows:
Serial Port COM2 COM3 COM4 COM5
Silk­screen D C B A