Hardware Configuration
IB822 Series
User’s Manual
19
2
2.5.2
Console COM1 RS-232/422/485 Port (CN7)
COM1 port is jumper-less and configurable in BIOS.
Pin
Assignment
Pin
Assignment
1
DCD, Data carrier detect
6
DSR, Data set ready
2
RX, Receive
7
RTS, Request to send
3
TX, Transmit
8
CTS, Clear to send
4
DTR, Data terminal
ready
9
RI, Ring Indicator
5
Ground
Pin
Assignment
RS-232
RS-422
RS-485
1
DCD
TX-
DATA-
2
RX
TX+
DATA+
3
TX
RX+
NC
4
DTR
RX-
NC
5
Ground
Ground
Ground
6
DSR
NC
NC
7
RTS
NC
NC
8
CTS
NC
NC
9
RI
NC
NC
1
6
5
9