3 serial interfaces, 1 rs-232 serial interface pinouts, Table 3-4: ethernet connector leds – IEI Integration IOVU-752S User Manual
Page 25: Table 3-5: rs-232 pinouts
IOVU-752S Panel PC
Page 18
The RJ-45 Ethernet connector has two status LEDs, one green and one yellow. The green
LED indicates activity on the port and the yellow LED indicates the port is linked
SPEED LED
LINK LED
Status
Description
Status
Description
GREEN
ON: 100 MB
OFF: 10 MB
YELLOW
ON: Linked
Flashing: Activity
Table 3-4: Ethernet Connector LEDs
3.3.3 Serial Interfaces
The system has both a RS-232 and a RS-232/422/485 serial port connector.
3.3.3.1 RS-232 Serial Interface Pinouts
Pinouts for the RS-232 serial port are shown below.
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 3-5: RS-232 Pinouts