UNO-1140/F/FH User Manual 10
2.2.2 RS-232/485 Selection
COM1 ~ COM4 support 9-wire RS-232 and RS-485 interfaces, and you
can set corresponding jumpers to select serial ports as RS-232 or RS-485
interfaces shown in Table 2.2. Please note to reset the system to adapt this
configuration change.
Jumper Setting for RS-232 Interface: (Default Setting)
Figure 2.4: RS-232 Jumper Settings
Jumper Setting for RS-485 Interfaces:
Figure 2.5: RS-485 Jumper Settings
Table 2.1: Selecting RS-232/485 (COM1~COM4)
Serial Port Corresponding Jumper to Select RS-232/485
COM1 JSETCOM1
COM2 JSETCOM2
COM3 JSETCOM3
COM4 JSETCOM4
