2 rs-232/422/485 serial interface pinouts – IEI Integration IOVU-751R User Manual
Page 33
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IOVU-751R-CE5/UX-R10 User Manual
Page 24
Pin Arrangement
Pin No
Signal Name Direction Description
1
DCD
Input
Carrier Detect
2
RX
Input
Receive Data
3
TX
Output
Send Data
4
DTR
Output
Data Terminal Ready
5
GND
N/A
Ground
6
DSR
Input
Data Set Ready
7
RTS
Output
Request to Send
8
CTS
Input
Send Possible
9
RI
Input
Called Status Display
Shell
FG
N/A
Frame Ground
(Common with SG)
Table 4-4: RS-232 Pinouts
4.2.2.2 RS-232/422/485 Serial Interface Pinouts
Pinouts for the RS-232/422/485 serial port are shown below.
Pin RS-232
RS-422
RS-485
1
RX-
DATA-
2 RX
RX+
DATA+
3 TX
TX-
4
5 GND
GND
GND
6
7
TX+
8
9
Table 4-5: Serial Port Pinouts
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