IEI Integration UPC-12AH_GM45 v2.00 - Manual (Page 56)

UPC-12A/GM45 Panel PC
Page 44
4.9.5.1 COM4 RS-422 and RS-485 Pinouts
The pinouts for RS-422 and RS-485 operation of external serial port COM 4 are detailed
below.
COM 4 RS-422 Description
Pin 1 TX-
Pin 2 TX+
Pin 6 RX-
Pin 7 RX+
Table 4-7: RS-422 Pinouts
COM 4 RS-485 Description
Pin 1 Data-
Pin 2 Data+
Table 4-8: RS-485 Pinouts
4.9.6 Clear CMOS Button
Jumper Type: Push button
Jumper Location: See
559H559H559H559H559H559H
Figure 4-13
If the UPC-12A/GM45 fails to boot due to improper BIOS settings, the clear CMOS button
clears the CMOS data and resets the system BIOS information. If the “CMOS Settings
Wrong” message is displayed during the boot up process, the fault may be corrected by
pressing the F1 to enter the CMOS Setup menu. Do one of the following:
ƒ Enter the correct CMOS setting
ƒ Load Optimal Defaults
ƒ Load Failsafe Defaults.
After having done one of the above, save the changes and exit the CMOS Setup menu.
The location of the clear CMOS button is shown in
560H560H560H560H560H560H
Figure 4-13 below.