EUDA2 Series 12”/15”/18.5” Panel PC User’s Manual (ver2.1) 27
J2 RS-232 Mode Setup
PIN No.
Signal Description
PIN No.
Signal Description
1
Data Carrier Detect (DCD)
2
Receive Data (RXD)
3
Transmit Data (TXD)
4
Data Terminal Ready (DTR)
5
GND
6
Data Set Ready (DSR)
7
Request to Send (RTS)
8
Clear to Send (CTS)
9
Ring Indicator (RI)
J2 RS-422 Mode Setup
PIN No.
Signal Description
PIN No.
Signal Description
1
TX-
2
TX+
3
Rx+
4
Rx-
5
GND
6
RTS-
7
RTS+
8
CTS+
9
CTS-
J2 RS-485 Mode Setup
PIN No.
Signal Description
PIN No.
Signal Description
1
DATA-
2
DATA+
3
NC
4
NC
5
GND
6
NC
7
NC
8
NC
9
NC
6.1.2 Insert extended I/O daughter board
1. Confirm the position of Golden Finger
Connector
2. Fix the I/O daughter board to the main board
system
Figure 6-6: Installation of I/O daughter board