IMBA-8650 Motherboard
Page 99
Pins Description
Short 1 - 2 Keep CMOS Setup Default
Short 2 – 3 Clear CMOS Setup
Table 5-3: Clear CMOS Jumper Settings
5.4.3 COM3 Mode Selection
Jumper Label:
JP2
Jumper Type:
3-pin header
Jumper Settings:
See
Table 5-4
Jumper Location:
See
Figure 5-6
The COM3 Mode Selection jumper sets the communication protocol used by the second
serial communications port (COM 3) as RS-232, RS-422 or RS-485. The COM3 Mode
Selection settings are shown in
Table 5-4.
Pins Description
Short 1-2
Short 2-4
RS-232 (by COM3) Default
Short 3-5
Short 2-4
RS-422 (by CN12)
Short 3-5
Short 4-6
RS-485 (by CN12)
Table 5-4: COM3 Mode Selection Jumper Settings
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