IEI Technology UPC-F12C-ULT3, User Manual

Page: 33 / 114

UPC-F12C-ULT3 Panel PC
Page 19
Use the RJ-45 to DB-9 serial port cable shipped with the UPC-F12C-ULT3 to connect to a
serial device. The pinouts of the RJ-45 to DB-9 serial port cable are listed below.
PIN NO. RS-232 RS-422 RS-485
1 DCD TXD422- TXD485-
2 RXD
3 TXD --
4 DTR RXD422- --
5 GND -- --
6 DSR -- --
7 RTS -- --
8 CTS -- --
9 RI -- --
Table 3-3: DB-9 RS-232/422/485 Pinouts
3.4.3 Clear CMOS
If the UPC-F12C-ULT3 fails to boot due to improper BIOS settings, the clear CMOS
jumper clears the CMOS data and resets the system BIOS information. To do this, push
the clear CMOS button for three seconds, then restart the system. The clear CMOS button
location is shown in Figure 3-5 . The I/O cover must be removed to be able to access the
clear CMOS button.
Figure 3-5: Clear CMOS Button Location