Chapter 2 Hardware Configuration
Page: 2-6
ISA-562LF USER
′
S MANUAL
2-4. COM PORT CONNECTOR
COM1 :
COM1 Connector
COM1 is fixed as RS-232.
The pin assignment is as follows :
PIN ASSIGNMENT
1 COM1_DCD
2 COM1_RXD
3 COM1_TXD
4 COM1_DTR
5 GND
6 COM1_DSR
7 COM1_RTS
8 COM1_CTS
9 COM1_RI
NC NC
COM2 :
COM2 Connector
The COM2 is selectable as RS-232/422/485.
The pin assignment is as follows :
ASSIGNMENT
PIN
RS-232 RS-422
RS-485
1 COM2_DCD
TXN
TXN
2 COM2_RXD
TXP
TXP
3 COM2_TXD
RXP
RXP
4 COM2_DTR
RXN
RXN
5 GND
GND GND
6 COM2_DSR
RTSN NC
7 COM2_RTS RTSP NC
8 COM2_CTS CTSP NC
9 COM2_RI CTSN NC
10 NC
NC
NC