IEI Technology tKINO-AL, User Manual

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tKINO-AL SBC
Page 60
4.7.2 Clear CMOS Button
If the tKINO-AL fails to boot due to improper BIOS settings, use the button to clear the
CMOS data and reset the system BIOS information.
The location of the clear CMOS button (J_CMOS1) is shown in Figure 4-16
Figure 4-16: Clear CMOS Button Location
4.7.3 COM1 and COM2 Port Function Select Switch
The COM1 and COM2 function select switch (SW1) sets the communication protocol used
by the COM1 and COM2 serial communication ports as RS-232, RS-422 or RS-485. The
COM1 and COM2 function select switch settings are shown in Table 4-2 .
* ON=0, OFF=1
SW1 (1-2-3-4) Description
0101 RS-232 (default)
0000 RS-422
1010 RS-485
Table 4-2: COM1 and COM2 Function Select Switch Settings
The location of the COM1 and COM2 function select switch is shown below.