Chapter 2 Installation
EC7-1818CLD2NA
- 11 -
Serial Port
1
、
The board provides six serial ports; COM1 is a standard DB9 socket. The pin
definitions are as follows:
Pin
Signal Name
1 DCD#
2 RXD
3 TXD
4 DTR#
5 GND
6 DSR#
7 RTS#
8 CTS#
J5(COM1)
9 RI#
Note: it is recommended to use the corresponding terminal of YANDA
1165-109-001-000 or the D-SUB 9-pin female terminal from other manufacturer.
2
、
The board provides five 2x5Pin serial ports (Pitch: 2.54mm). COM2/COM3
supports RS-232/RS-422/RS-485 mode. The pin definitions are as follows:
Signal Name
Pin
Setting
RS-232
(COM2 ~ COM6)
RS-422
(COM2/COM3)
RS-485
(COM2/COM3)
1 DCD#
TXD- Data-
2 RXD TXD+ Data+
3 TXD RXD+ NC
4 DTR#
RXD-
NC
5 GND
GND GND
6 DSR#
NC
NC
7 RTS#
NC
NC
8 CTS#
NC
NC
9 RI#
NC
NC
COM2 ~ COM6
10 NA
NA
NA
Note: the data transmission direction is controlled automatically under RS485 mode.
The Pin9 of COM4/5 supports RI# (default)/5V/12V.
