User Manual

Quick Installation Guide
EBM-A50M Quick Installation Guide
19
2.3.18 Serial port 2 connector (JCOM2)
In RS-232 Mode
Signal
PIN
PIN
Signal
DCD2
1
2
RxD2
TxD2
3
4
DTR2
GND
5
6
DSR2
RTS2
7
8
CTS2
RI2
9
10
NC
In RS-422 Mode
Signal
PIN
PIN
Signal
TxD2-
1
2
RxD2+
TxD2+
3
4
RxD2-
GND
5
6
NC
NC
7
8
NC
NC
9
10
NC
In RS-485 Mode
Signal
PIN
PIN
Signal
DATA2-
1
2
NC
DATA2+
3
4
NC
GND
5
6
NC
NC
7
8
NC
NC
9
10
NC