Instruction Manual

NANO-945GSE2
Page 51
Figure 4-4: Clear CMOS Jumper
4.5.3 COM3 Function Select Jumper
Jumper Label: JP1
Jumper Type:
6-pin header
Jumper Settings:
See
Table 4-4
Jumper Location:
See
Figure 4-5
The COM2 Function Select jumper sets the communication protocol used by the second
serial communications port (COM3) as RS-232, RS-422 or RS-485. The COM 2 Function
Select settings are shown in
Table 4-4.
COM 2 Function Select Description
Short 1-2 RS-232 Default
Short 3-4 RS-422
Short 5-6 RS-485
Table 4-4: COM 2 Function Select Jumper Settings
The COM 2 Function Select jumper location is shown in Figure 4-5.