IBASE IB825 User Manual
Page 20
INSTALLATIONS
16
IB825 User’s Manual
J4: COM1~COM2 Serial Port(DF11Connector)
Signal Name Pin #
Pin #
Signal Name
DSR1
Data set ready
2
1
DCD1
Data carrier detect
RTS1
Request to send
4
3
RXD1
Receive data
CTS1
Clear to send
6
5
TXD1
Transmit data
RI1
Ringing indicator
8
7
DTR1
Data terminal ready
Not used
10
9
Ground
DSR2
12
11
DCD2
RTS2
14
13
RXD2
CTS2
16
15
TXD2
RI2
18
17
DTR2
Not used
20
19
Ground
COM1 is jumper selectable for RS-232, RS-422 and RS-485.
Pin #
Signal Name
RS-232
R2-422
RS-485
01
DCD
TX-
DATA-
03
RX
TX+
DATA+
05
TX
RX+
NC
07
DTR
RX-
NC
09
Ground
Ground
Ground
02
DSR
NC
NC
04
RTS
NC
NC
06
CTS
NC
NC
08
RI
NC
NC
10
NC
NC
NC
J5: Digital I/O
Signal Name Pin Pin
Signal Name
GND
1
2
VCC
OUT3
3
4
OUT1
OUT2
5
6
OUT0
IN3
7
8
IN1
IN2
9
10
IN0