User's Manual

IOVU-430M Panel PC
Page 18
Step 2: Select COM1 mode setting. Select the desired mode setting for Serial Port
COM1 in the drop down menu (Figure 3-6).
 RS-232
 RS-422
 RS-485
Step 3: Click the Set button.
Click the Set button to apply the mode setting change.
Step 4: Click the Save Registry button. Click the Save Registry button to save the
settings. Step 0:
3.3.3.3 Pinouts
Pinouts for the RS-232/422/485 serial port is shown below.
Pin RS-232 RS-422 RS-485
1 DCD RX- DATA-
2 RX RX+ DATA+
3 TX TX-
4 DTR
5 GND GND GND
6 DSR
7 RTS TX+
8 CTS
9 RI
Table 3-4: RS-232 Pinouts
Figure 3–7: Serial Port Pinouts