Installation Instructions
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EC3-1813CLD2NA(CHENGDU)
2.10 USB Port
This board provides four USB2.0 ports, J3-J6.
Pin
Signal Name
Pin
Signal Name
1 +5V_USB 2
+5V_USB
3 USB1_Data-
4
USB2_Data-
5 US
6
US
7 GND 8
GND
J3-J6
(pitch: 2.0mm)
9 NA 10
GND_CHASSIS/GND
2.11 COM Port
This board provides ten 2×5Pin COM port pin header ports. COM1 and COM2
support RS-232/RS-422/RS-485 mode, and the other eight COM ports support
RS-232 mode.
Signal Name
Pin
RS-232
RS-422
RS-485
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
COM1
～
COM10
(pitch: 2.0mm)
10 NC
NC NC
Note: Under RS-485 mode, the data receive/send direction is automatically controlled
by TXD.
