Advantech AIMB-221 manual ATX/AT mode selector JPSON1

Table 1.3: ATX/AT mode selector (JPSON1)

Function Jumper Setting

AT Mode

1-2 closed

ATX Mode*

2-3 closed

*Default setting

Table 1.4: COM1 RS-232 with 5V or 12V selector (JSETCOM1)

Use jumper to select the 5V or 12V mode for COM1. The default setting is RS-232 ring in.

	RS-232 Ring In		RS-232 with 5 V			RS-232 with 12 V
1	2
		1		2	1	2

Table 1.5: COM2 RS-232/422/485 mode selector (JSETCOM2)

Use JP1 to select the RS-232/422/485 mode for COM2. The default setting is RS-232.

Figure 1.4 COM2 RS-232/422/485 jumper setting

AMB-221 User Manual 10